Substance Information

NB: Registration status and tonnage

  • The REACH Registered substance portal was updated on 9th November 2020; the REACH registered factsheets were further updated on 21st December 2020. Details of the improvements can be found at Dissemination Platform Updates. Reprocessing the entire dataset is ongoing since 21 December 2020. ECHA is making all possible efforts to synchronise the registration status and tonnage with the shortest delay.
  • While reprocessing is ongoing please note that substances whose registration dossiers are not yet processed can incorrectly state in the Infocard that they are not registered under REACH. In these cases if there is a link to a REACH registered substance factsheet then the substance IS registered. The correct total tonnage band can be found in the factsheet(s) for the substance.

Substance Infocard

IC

Sodium hydroxide

Help Substance identity

The ‘Substance identity’ section is calculated from substance identification information from all ECHA databases. The substance identifiers displayed in the InfoCard are the best available substance name, EC number, CAS number and/or the molecular and structural formulas.

Some substance identifiers may have been claimed confidential, or may not have been provided, and therefore not be displayed.

EC (European Community) Number

The EC Number is the numerical identifier for substances in the EC Inventory. The EC Inventory is a combination of three independent European lists of substances from the previous EU chemicals regulatory frameworks (EINECS, ELINCS and the NLP-list). More information about the EC Inventory can be found here.

If the substance was not covered by the EC Inventory, ECHA attributes a list number in the same format, starting with the numbers 6, 7, 8 or 9.

The EC or list number is the primary substance identifier used by ECHA.

CAS (Chemical Abstract Service) registry number

The CAS number is the substance numerical identifier assigned by the Chemical Abstracts Service, a division of the American Chemical Society, to substances registered in the CAS registry database. A substance identified primarily by an EC or list number may be linked with more than one CAS number, or with CAS numbers that have been deleted. More information about CAS and the CAS registry can be found here.

Molecular formula

The molecular formula identifies each type of element by its chemical symbol and identifies the number of atoms of each element found in one discrete molecule of the substance. This information is only displayed if the substance is well–defined, its identity is not claimed confidential and there is sufficient information available in ECHA’s databases for ECHA’s algorithms to generate a molecular structure.

Molecular structure

The molecular structure is based on structures generated from information available in ECHA’s databases. If generated, an InChI string will also be generated and made available for searching. This information is only displayed if the substance is well-defined, its identity is not claimed confidential and there is sufficient information available in ECHA’s databases for ECHA’s algorithms to generate a molecular structure.

More help available here.

EC / List no.: 215-185-5

CAS no.: 1310-73-2

Mol. formula: HNaO

formula
Help Hazard classification and labelling

The ‘Hazard classification and labelling’ section shows the hazards of a substance based on the standardised system of statements and pictograms established under the CLP (Classification Labelling and Packaging) Regulation. The CLP Regulation makes sure that the hazards presented by chemicals are clearly communicated to workers and consumers in the European Union. The CLP Regulation uses the UN Global Harmonised System (GHS) and European Union Specific Hazard Statements (EUH).

This section is based on three sources for information (harmonised classification and labelling (CLH), REACH registrations and CLP notifications). The source of the information is mentioned in the introductory sentence of the hazard statements. When information is available in all sources, the first two are displayed as a priority.

Please note:

The purpose of the information provided under this section is to highlight the substance hazardousness in a readable format. It does not represent a new labelling, classification or hazard statement, neither reflect other factors that affect the susceptibility of the effects described, such as duration of exposure or substance concentration (e.g. in case of consumer and professional uses). Other relevant information includes the following:

  • Substances may have impurities and additives that lead to different classifications. If at least one company has indicated that the substance classification is affected by impurities or additives, this will be indicated by an informative sentence. However, substance notifications in the InfoCard are aggregated independently of the impurities and additives.
  • Hazard statements were adapted to improve readability and may not correspond textually to the hazard statements codes description in the European Union Specific Hazard Statements (EUH) or the UN Global Harmonised System (GHS).

To see the full list of notified classifications and to get more information on impurities and additives relevant to classification please consult the C&L Inventory.

More information about Classification and Labelling is available in the Regulations section of ECHA website.

More help available here.

Harmonised classification and labelling (CLH)

Harmonised classification and labelling is a legally binding classification and labelling for a substance, agreed at European Community level. Harmonisation is based on the substance’s physical, toxicological and eco-toxicological hazard assessment.

The ‘Hazard classification’ and labelling section uses the signal word, pictogram(s) and hazard statements of the substance under the harmonised classification and labelling (CLH) as its primary source of information.

If the substance is covered by more than one CLH entry (e.g. disodium tetraborate EC no. 215–540–4, is covered by three harmonisations: 005–011–00–4; 005–011–01–1 and 005–011–02–9), CLH information cannot be displayed in the InfoCard as the difference between the CLH classifications requires manual interpretation or verification. If a substance is classified under multiple CLH entries, a link to the C&L Inventory is provided to allow users to view CLH information associated with the substance and no text is automatically generated for the InfoCard.

It is possible that a harmonisation is introduced through an amendment to the CLP Regulation. In that case, the ATP (Adaptation to Technical Progress) number is displayed.

More info on CLH can be found here.

Classification and labelling under REACH

If available, additional information on classification and labelling (C&L) is derived from REACH registration dossiers submitted by industry. This information has not been reviewed or verified by ECHA, and may change without prior notice. REACH registration dossiers have greater data requirements (such as supporting studies) than do notifications under CLP.

Notifications under the Classification Labelling and Packaging (CLP) Regulation

If no EU harmonised classification and labelling exists and the substance was not registered under REACH, information derived from classification and labelling (C&L) notifications to ECHA under CLP Regulation is displayed under this section. These notifications can be provided by manufacturers, importers and downstream users. ECHA maintains the C&L Inventory, but does not review or verify the accuracy of the information.

Note that for readability purposes, only the pictograms, signal words and hazard statements referred in more than 5% of the notifications under CLP are displayed.

GHS05: Corrosive

Danger! According to the harmonised classification and labelling (CLP00) approved by the European Union, this substance causes severe skin burns and eye damage.

Helpful information About this substance

This section provides an overview of the calculated volume at which the substance is manufactured or imported to the European Economic Area (EU28 + Iceland, Liechtenstein and Norway). Additionally, if available, information on the use of the substance and how consumers and workers are likely to be exposed to it can also be displayed here.

The use information is displayed per substance life cycle stage (consumer use, in articles, by professional workers (widespread uses), in formulation or re-packing, at industrial sites or in manufacturing). The information is aggregated from the data coming from REACH substance registrations provided by industry.

For a detailed overview on identified uses and environmental releases, please consult the registered substance factsheet.

Use descriptors are adapted from ECHA guidance to improve readability and may not correspond textually to descriptor codes described in Chapter R.12: Use Descriptor system of ECHA Guidance on information requirements and chemical safety assessment.

The examples provided are generic examples and may not apply to the specific substance you are viewing. A substance may have its use restricted to certain articles or products and therefore not all the examples may apply to the specific substance. Furthermore, some substances can be found in an article, but with unlikely exposure (e.g. inside a watch) or with very low concentrations considered not to pose risks to human health or the environment.

Please note:

For readability purpose, only non-confidential use descriptors occurring in more than 5% of total occurrences are displayed.

The described Product category (i.e. the products in which the substance may be used) may refer to uses as intermediate and under controlled conditions, for which there is no consumer exposure.

More help is available here.

This substance is registered under the REACH Regulation and is manufactured in and / or imported to the European Economic Area, at ≥ 10 000 000 tonnes per annum.

This substance is used by consumers, in articles, by professional workers (widespread uses), in formulation or re-packing, at industrial sites and in manufacturing.

Consumer Uses

ECHA has no public registered data indicating whether or in which chemical products the substance might be used. Other release to the environment of this substance is likely to occur from: indoor use (e.g. machine wash liquids/detergents, automotive care products, paints and coating or adhesives, fragrances and air fresheners), outdoor use, indoor use in close systems with minimal release (e.g. cooling liquids in refrigerators, oil-based electric heaters), outdoor use in close systems with minimal release (e.g. hydraulic liquids in automotive suspension, lubricants in motor oil and break fluids), indoor use in long-life materials with low release rate (e.g. flooring, furniture, toys, construction materials, curtains, foot-wear, leather products, paper and cardboard products, electronic equipment), outdoor use in long-life materials with low release rate (e.g. metal, wooden and plastic construction and building materials), indoor use in long-life materials with high release rate (e.g. release from fabrics, textiles during washing, removal of indoor paints) and outdoor use in long-life materials with high release rate (e.g. tyres, treated wooden products, treated textile and fabric, brake pads in trucks or cars, sanding of buildings (bridges, facades) or vehicles (ships)).

Article service life

Other release to the environment of this substance is likely to occur from: outdoor use, indoor use (e.g. machine wash liquids/detergents, automotive care products, paints and coating or adhesives, fragrances and air fresheners), indoor use in long-life materials with low release rate (e.g. flooring, furniture, toys, construction materials, curtains, foot-wear, leather products, paper and cardboard products, electronic equipment) and indoor use in long-life materials with high release rate (e.g. release from fabrics, textiles during washing, removal of indoor paints).
This substance can be found in products with material based on: fabrics, textiles and apparel (e.g. clothing, mattress, curtains or carpets, textile toys), leather (e.g. gloves, shoes, purses, furniture), metal (e.g. cutlery, pots, toys, jewellery) and stone, plaster, cement, glass or ceramic (e.g. dishes, pots/pans, food storage containers, construction and isolation material).

Widespread uses by professional workers

ECHA has no public registered data indicating whether or in which chemical products the substance might be used. This substance is used in the following areas: mining.
This substance is used for the manufacture of: chemicals.
Release to the environment of this substance can occur from industrial use: formulation of mixtures and formulation in materials.
Other release to the environment of this substance is likely to occur from: indoor use (e.g. machine wash liquids/detergents, automotive care products, paints and coating or adhesives, fragrances and air fresheners), outdoor use, indoor use in close systems with minimal release (e.g. cooling liquids in refrigerators, oil-based electric heaters), outdoor use in close systems with minimal release (e.g. hydraulic liquids in automotive suspension, lubricants in motor oil and break fluids), outdoor use in long-life materials with low release rate (e.g. metal, wooden and plastic construction and building materials), indoor use in long-life materials with low release rate (e.g. flooring, furniture, toys, construction materials, curtains, foot-wear, leather products, paper and cardboard products, electronic equipment), outdoor use in long-life materials with high release rate (e.g. tyres, treated wooden products, treated textile and fabric, brake pads in trucks or cars, sanding of buildings (bridges, facades) or vehicles (ships)) and indoor use in long-life materials with high release rate (e.g. release from fabrics, textiles during washing, removal of indoor paints).

Formulation or re-packing

ECHA has no public registered data indicating whether or in which chemical products the substance might be used. Release to the environment of this substance can occur from industrial use: formulation of mixtures, formulation in materials, as processing aid, as processing aid, in processing aids at industrial sites, as an intermediate step in further manufacturing of another substance (use of intermediates), of substances in closed systems with minimal release, for thermoplastic manufacture, industrial abrasion processing with low release rate (e.g. cutting of textile, cutting, machining or grinding of metal), industrial abrasion processing with high release rate (e.g. sanding operations or paint stripping by shot-blasting), in the production of articles and manufacturing of the substance.

Uses at industrial sites

ECHA has no public registered data indicating whether or in which chemical products the substance might be used. This substance is used in the following areas: mining.
This substance is used for the manufacture of: chemicals.
Release to the environment of this substance can occur from industrial use: in processing aids at industrial sites, as processing aid, as an intermediate step in further manufacturing of another substance (use of intermediates), in the production of articles, of substances in closed systems with minimal release, as processing aid, for thermoplastic manufacture, formulation of mixtures, formulation in materials, industrial abrasion processing with low release rate (e.g. cutting of textile, cutting, machining or grinding of metal), industrial abrasion processing with high release rate (e.g. sanding operations or paint stripping by shot-blasting) and manufacturing of the substance.

Manufacture

Release to the environment of this substance can occur from industrial use: manufacturing of the substance, as an intermediate step in further manufacturing of another substance (use of intermediates), as processing aid, formulation of mixtures, formulation in materials, in processing aids at industrial sites, as processing aid, for thermoplastic manufacture, of substances in closed systems with minimal release, industrial abrasion processing with low release rate (e.g. cutting of textile, cutting, machining or grinding of metal), industrial abrasion processing with high release rate (e.g. sanding operations or paint stripping by shot-blasting) and in the production of articles.

Help How to use it safely

This section provides links to the list of precautions (precautionary statements) and to the guidance on safe use, if they have been provided in REACH registration dossiers.

  • Precautionary statements - describe recommended measures to minimise or prevent adverse effects resulting from exposure to a hazardous product or improper storage or handling of a hazardous product.
  • Guidance on safe use - recommendations by substance registrant on the proper use of the substance in various situations. Examples include recommended measures on fire-fighting, transport and recycling and disposal.

Please note: Precautionary measures and guidance on safe use concern the use and handling of the specific substance as such, not of the presence of the substance in other articles or mixtures. The precautionary measures and guidance on safe use are as submitted to ECHA by registrants under the REACH Regulation. Information on precautionary measures and the safe use is submitted by the registrant of a substance and the registrant is solely responsible for its accuracy and completeness.

More help available here.

about INFOCARD - Last updated: 09/04/2021 InfoCard

The InfoCard summarises the non-confidential data of a substance held in the databases of the European Chemicals Agency (ECHA). InfoCards are generated automatically based on the data available at the time of generation.

The quality and correctness of the information submitted to ECHA remains the responsibility of the data submitter. The type of uses and classifications may vary between different submissions to ECHA and for a full understanding it is recommended to consult the source data. Information on applicable regulatory frameworks is also automatically generated and may not be complete or up to date. It is the responsibility of the substance manufacturers and importers to consult official publications, e.g. the electronic edition of the Official Journal of the European Union.

InfoCards are updated when new information is available. The date of the last update corresponds to the publication date of the InfoCard and not necessarily to the date in which the update occurred in the source data.

More help available here.

Help Help

Key datasets

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Regulatory context

Here you can find all of the regulations and regulatory lists in which this substance appears, according to the data available to ECHA. This substance has been found in the following regulatory activities (directly, or inheriting the regulatory context of a parent substance):

REACH - Registration, Evaluation, Authorisation and Restriction of Chemicals Regulation
CLP - Classification, Labelling and Packaging
  • Harmonized C&L
    CLP Regulation Annex VI
    Substances for which an agreed set of classification and labelling data has been agreed at EU level by Member States.
PIC - Prior Informed Consent Regulation
Previous Legislations
  • Substances listed in the EINECS, ELINCS, or NLP inventories.
Active Implantable Medical Devices Directive
  • Active Implantable Medical Devices Directive - Hazardous Substances
    EU. Hazardous Substances for Purposes of Directive 90/385/EEC on Active Implantable Medical Devices, 20 July 1990, amended by Directive 2007/47/EC, 21 September 2007

    This list contains hazardous substances for purposes of Directive 90/385/EEC on active implantable medical devices, particularly as regards Article 3 and Annex I (Essential Requirements). This non-exhaustive database is derived from: Table 3 of Annex VI to CLP, REACH Candidate List of SVHCs, and Directive 2000/54/EC's Annex III (Biological Agents list).

CAD - Chemical Agents Directive
  • CAD - Chemical Agents Directive, Article 2(b)(i) - Hazardous Agents
    EU. Hazardous Substances - Article 2(b)(i), Directive 98/24/EC on Protection of Workers from Chemical Agent-related Risks, 5 May 1998 (Table 3 of Annex VI to CLP, as amended)

    This list contains a non-exhaustive inventory based on the list of substances with harmonised classification and labelling (i.e., Table 3 of Annex VI to the CLP Regulation 1272/2008/EC). While the harmonised list covers many hazardous substances, others not listed may also meet the classification criteria in accordance with the CLP Regulation.

Construction Products Regulation
  • Construction Product Regulation - Annex I (3) - Hazardous Substances
    EU. Hazardous Substances for Purposes of Annex I (3) (Requirements for Construction Works), Regulation 305/2011/EU on Marketing of Construction Products, amended by Regulation 574/2014/EU, 28 May 2014

    This list contains a non-exhaustive inventory of substances taken from: (1) Table 3 of Annex VI to CLP; (2) the Candidate List of SVHCs; (3) Annex XIV of REACH (Authorisation List); (4) Annex XVII of REACH (Restrictions List); (5) F-gases subject to emission limits/reporting per Regulation 517/2014/EU; and (6) volatile organic compounds (VOCs) listed in the Ambient Air Directive 2008/50/EC. The basis of the list is Annex I(3) of the Construction Products Regulation 305/2011/EC, which stipulates that construction works must not have a high impact on human health or the environment as a result of: giving off toxic gas; emissions of dangerous substances, volatile organic compounds (VOC), greenhouse gases or dangerous particles into indoor or outdoor air; release of dangerous substances into drinking water, ground water, marine waters, surface waters or soil.

  • Construction Product Regulation - Article 6(5) - SDS and Declaration
    EU. Hazardous Substances Subject to Declaration (Article 6(5)), Regulation 305/2011/EU on Marketing of Construction Products, amended by Regulation 574/2014/EU, 28 May 2014

    This list contains a non-exhaustive inventory of substances originating from: (1) Table 3 of Annex VI to CLP (i.e., the list of harmonised substances); (2) the Candidate List of Substances of Very High Concern (SVHCs); and REACH Annex XIV (Authorisation List). This list is compiled on the basis of Article 6(5) of Regulation 305/2011/EC on Marketing of Construction Products. This provision requires SDSs and information on hazardous substances (i.e., SVHCs) contained in construction products be provided with the declaration of performance.

Cosmetic Products Regulation
  • Cosmetic Products Regulation, Annex III - Restricted Substances
    EU. Restricted Substances: Annex III, Regulation 1223/2009/EC on Cosmetic Products, as amended by Regulation (EU) 2020/1683, 13 November 2020

    This list contains substances whose use in cosmetic products in the European Union is banned, except under certain conditions as indicated in Annex III. The list specifies the field of application or use, maximum allowable concentration limits in finished products, and any additional limitations.

EU Ecolabel Regulation
  • Ecolabels - Restrictions for Hazardous Substances/Mixtures
    EU. Substances Rendering Goods Ineligible for EU Ecolabel, Article 6(6), Regulation 66/2010/EC, L 27/1, 30 January 2010 (Table 3 of Annex VI to CLP; Candidate List of SVHCs)

    This list contains: (1) the hazardous substances with harmonised classifications and labelling (i.e., Table 3 of Annex VI to CLP Regulation); and (2) the Candidate List of substances of very high concern (SVHC). The EU Ecolabel may not be awarded to substances or mixtures classified as such. Note that this list is not exhaustive. While the harmonised list covers many hazardous substances, others not listed may also meet classification criteria in accordance with the CLP Regulation.

Food Contact Recycled Plastic Materials and Articles Regulation
  • FCMs Recycled Plastic & Articles Regulation - Annex I - Authorised Use
    EU. Plastic Food Contact Materials (FCMs) per Regulation 10/2011/EU (Union List), Directive 282/2008/EC on Recycled Plastic FCMs, 28 March 2008, amended by Regulation 2015/1906/EU, 23 October 2015

    This list contains the Annex I Plastic Food Contact Materials (FCMs) authorised for use in the European Union under Regulation 10/2011/EU. Pursuant to Art. 4(b) of Directive 282/2008/EC on recycled plastic FCMs, plastic recycling processes can only be authorised if input originates from plastic materials and articles manufactured in accordance with EU legislation on plastic food contact materials and articles.

General Product Safety Directive
  • General Product Safety Directive - Hazardous Substances
    EU. Hazardous Substances for Purposes of General Product Safety Directive (2001/95/EC), 15 January 2002, amended by Reg 596/2009/EC, 18 July 2009

    This list contains a non-exhaustive inventory of substances that fall within the European Union's hazardous substance definitions, as provided on: (1) Table 3 of Annex VI to the CLP Regulation 1272/2008/EC; (2) Annex III of Directive 2000/54/EC (Biological Agents); Candidate List of SVHCs; and REACH Annexes XIV and XVII (Authorisation and Restriction lists). They can be considered hazardous for purposes of the General Product Safety Directive 2001/95/EC.

In Vitro Diagnostic Medical Devices Directive
  • In Vitro Diagnostic Medical Devices Directive - Hazardous Substances
    EU. Hazardous Substances for Purposes of Article 3 & Annex I (Essential Requirements), Directive 98/79/EC on In Vitro Diagnostic Medical Devices, 7 December 1998

    This list contains a non-exhaustive inventory of hazardous substances for purposes of essential requirements (Article 3 and Annex I) for general safety, design, manufacture and hazard communication of in vitro diagnostic medical devices. It is derived from: Table 3 of Annex VI to CLP, REACH Candidate List of SVHCs, and Directive 2000/54/EC's Annex III (Biological Agents list).

Inland Transport of Dangerous Goods Directive
  • Inland Transport of Dangerous Goods Directive, Annex I - ADR
    EU. Dangerous Goods List (ADR, Chap. 3.2, Table A), Directive 2008/68/EC, last amended by Directive 2020/1833/EU, 4 December 2020

    This list contains the ADR Dangerous Goods List, as implemented by the European Union's Directive 2008/68/EC. This Directive applies the European Agreements on the international transport of dangerous goods by road (ADR) and inland waterways (ADN), and the regulations concerning the international carriage of dangerous goods by rail (RID).

  • Inland Transport of Dangerous Goods Directive, Annex II - RID
    EU. Dangerous Goods List (RID, Chap. 3.2, Table A), Directive 2008/68/EC, last amended by Directive 2020/1833/EU, 4 December 2020

    This list contains the RID Dangerous Goods List, as implemented by the European Union's Directive 2008/68/EC. This Directive applies the European Agreements on the international transport of dangerous goods by road (ADR) and inland waterways (ADN), and the regulations concerning the international carriage of dangerous goods by rail (RID).

  • Inland Transport of Dangerous Goods Directive, Annex III - ADN
    EU. Dangerous Goods List (ADN, Chap. 3.2, Table A), Directive 2008/68/EC, last amended by Directive 2020/1833/EU, 4 December 2020

    This list contains the ADN Dangerous Goods List, as implemented by the European Union's Directive 2008/68/EC. This Directive establishes rules for the safe transport of dangerous goods between EU countries by road (ADR) and inland waterways (ADN), and the regulations concerning the international carriage of dangerous goods by rail (RID).

Marine Environmental Policy Framework Directive
  • Marine Environmental Policy Framework Directive - Hazardous Substances
    EU. Hazardous Substances for Purposes of Directive 2008/56/EC (Marine Strategy Framework Directive), 25 June 2008, amended by Directive 2017/845/EU, 18 May 2017

    This list contains a non-exhaustive inventory of hazardous substances for purposes of the Marine Strategy Framework Directive, especially as it concerns Art. 3(8), and Annexes I and III. The listed substances meet the European Union's definitions as hazardous, as provided on: (1) Table 3 of Annex VI to the CLP Regulation (1272/2008/EC); (2) Annex III of Directive 2000/54/EC (Biological Agents); Candidate List of SVHCs; and REACH Annex XIV (Authorisation List).

Medical Devices Directive
  • Medical Devices Directive - Hazardous Substances
    EU. Hazardous Substances for Purposes of Medical Devices Directive 93/42/EEC, 12 July 1993, amended by Directive 2007/47/EC, 21 September 2007

    This list contains hazardous substances in accordance with the Medical Devices Directive's (MDD) design and construction requirements pursuant to Annex I, Part II (7) & (8) (i.e., chemical, physical and biological properties; and infection and microbial contamination). Specifically, the non-exhaustive database is derived from: Table 3 of Annex VI to CLP, REACH Candidate List of SVHCs, and Directive 2000/54/EC's Annex III (Biological Agents list).

Plastic Materials and Articles Regulation
  • FCM and Articles Regulation, Annex I - Authorised Substances
    EU. Union List of Authorised Substances: Annex I, Plastics Food Contact Regulation 10/2011/EU, as amended by Regulation 2020/1245/EU, 3 September 2020

    This list contains the Union list of authorised monomers, other starting substances, macromolecules obtained from microbial fermentation, additives and polymer production aids. It is taken from Annex I of the Commission Regulation (EU) No 10/2011 on plastic materials and articles intended to come into contact with food.

Protection of Young People Directive
  • Physical, Biological and Chemical Agents & Processes and Work
    EU. Non-Exhaustive List of Banned Substances, Directive 94/33/EC on Young People at Work, 20 August 1994, as amended by Dir 2014/27/EU, March 5, 2014 (Based on Table 3 of Annex VI to CLP, inter alia)

    This list contains biological and chemical agents, in accordance with Art. 7 and points 2 and 3 of the Annex to Directive 94/33/EC, to which young persons (under 18 years of age) may not be exposed at the workplace. The list is a non-exhaustive inventory of such substances based on: 1) agents of risk groups 3 and 4 under Directive 2000/54/EC; 2) Table 3 of Annex VI to the CLP Regulation; 3) and Annex I of Directive 2004/37/EC.

Safety and Health of Workers at Work Directive
  • Safety and Health of Workers at Work Directive - Hazardous Substances
    EU. Hazardous Substances for Purposes of Directive 89/391/EEC, 29 June 1989, amended by Regulation 1137/2008/EC, 21 November 2008 (Table 3/Annex VI, CLP; Annex III, 2000/54/EC)

    This list contains a non-exhaustive inventory of substances that fall within the scope of the European Union's definition of hazardous chemical and biological substances, as provided on: (1) Table 3 of Annex VI to the CLP Regulation 1272/2008/EC; and (2) Annex III of Directive 2000/54/EC (Biological Agents). The EU's Occupational Safety and Health (OSH) Framework Directive 89/391/EEC applies to risks arising from chemical, physical and biological agents at the workplace.

Safety and/or Health Signs at Work Directive
  • Workplace Signs - minimum requirements & signs on containers and pipes
    EU. Workplace Signage: Annexes I and III, Directive 92/58/EEC, last amended by Directive 2014/27/EU, 5 March 2014

    This list contains hazardous substances based on Table 3 of Annex VI to the CLP Regulation 1272/2008/EC. According to the annexes to Directive 92/58/EEC, storage areas and containers containing chemical substances or mixtures that are classified as hazardous according to the CLP Regulation must be duly marked and/or labeled. Directive 92/58/EEC requires employers to ensure proper signage is posted in areas where hazards cannot be avoided or reduced.

WFD - Waste Framework Directive
  • Waste Framework Directive, Annex III - Waste - Hazardous Properties
    EU. Substances according to Hazardous Waste Properties: Annex III, Directive 2008/98/EC, 22 November 2008, amended by Directive 2018/851/EU, 14 June 2018

    This list contains substances that have been assigned hazard property (HP) waste codes 1-15, as defined in terms of the hazard class and category, hazard (H) statement, and/or concentration limits provided in Annex III of the Waste Framework Directive 2008/98/EC. The classifications of the substances listed in the list are based on their harmonised classifications per Table 3 of Annex VI to the CLP Regulation 1272/2008/EC.

Help Help

Substance names and other identifiers

Regulatory process names
caustic soda
C&L Inventory, EU Ecolabels - Restrictions for Hazardous Substances/Mixtures
Sodium hydroxide
EC Inventory, Pre-Registration process, Other, EU Ecolabels - Restrictions for Hazardous Substances/Mixtures, FCM and Articles Regulation, Annex I - Authorised Substances, FCMs Recycled Plastic & Articles Regulation - Annex I - Authorised Use
Sodium hydroxide
Pre-Registration process, Cosmetic Products Regulation, Annex III - Restricted Substances, Other, EU Ecolabels - Restrictions for Hazardous Substances/Mixtures, FCM and Articles Regulation, Annex I - Authorised Substances, FCMs Recycled Plastic & Articles Regulation - Annex I - Authorised Use
sodium hydroxide
C&L Inventory, Pre-Registration process, Other, EU Ecolabels - Restrictions for Hazardous Substances/Mixtures, FCM and Articles Regulation, Annex I - Authorised Substances, FCMs Recycled Plastic & Articles Regulation - Annex I - Authorised Use
SODIUM HYDROXIDE SOLUTION
Inland Transport of Dangerous Goods Directive, Annex III - ADN, Inland Transport of Dangerous Goods Directive, Annex I - ADR, Inland Transport of Dangerous Goods Directive, Annex II - RID
SODIUM HYDROXIDE, SOLID
Inland Transport of Dangerous Goods Directive, Annex III - ADN, Inland Transport of Dangerous Goods Directive, Annex I - ADR, Inland Transport of Dangerous Goods Directive, Annex II - RID
sodium hydroxide; caustic soda
CAD - Chemical Agents Directive, Art. 2(b)(i) - Hazardous Agents, Construction Product Regulation - Annex I (3) - Hazardous Substances, Construction Product Regulation - Art. 6(5) - SDS and Declaration, Active Implantable Medical Devices Directive - Hazardous Substances, In Vitro Diagnostic Medical Devices Directive - Hazardous Substances, Marine Environmental Policy Framework Directive - Hazardous Substances, Medical Devices Directive - Hazardous Substances, General Product Safety Directive - Hazardous Substances, Workplace Signs - minimum requirements & signs on containers and pipes, Safety and Health of Workers at Work Directive - Hazardous Substances, Waste Framework Directive, Annex III - Waste - Hazardous Properties, Fertiliser Regulation- Annex I, E.3 (chelating and complexing agents)
Translated names
hidroxid de sodiu (ro)
C&L Inventory
hidróxido de sodio (es)
C&L Inventory
hidróxido de sódio (pt)
C&L Inventory
hydroxid sodný (cs)
C&L Inventory
hydroxid sodný (sk)
C&L Inventory
hydroxyde de sodiumsoude caustique (fr)
C&L Inventory
idrossido di sodio (it)
C&L Inventory
kaustik soda (sv)
C&L Inventory
kaustinė soda (lt)
C&L Inventory
kaustisk soda (no)
C&L Inventory
kaustiskā soda (lv)
C&L Inventory
kaustična soda (hr)
C&L Inventory
kaustučna soda (sl)
C&L Inventory
lúh sodný (sk)
C&L Inventory
marónátron (hu)
C&L Inventory
Naatriumhüdroksiid (et)
C&L Inventory
natrijev hidroksid (hr)
C&L Inventory
natrijev hidroksid (sl)
C&L Inventory
natrio hidroksidas (lt)
C&L Inventory
natriumhydroksid (no)
C&L Inventory
Natriumhydroksidi (fi)
C&L Inventory
natriumhydroxid (da)
C&L Inventory
Natriumhydroxid (de)
C&L Inventory
natriumhydroxid (sv)
C&L Inventory
natriumhydroxide (nl)
C&L Inventory
natronlut (no)
C&L Inventory
natronlut (sv)
C&L Inventory
nátrium-hidroxid (hu)
C&L Inventory
nātrija hidroksīds (lv)
C&L Inventory
soda caustica( hidroxid de sodiu) (ro)
C&L Inventory
wodorotlenek sodu (pl)
C&L Inventory
Ätznatron (de)
C&L Inventory
Καυστική σόδα (el)
C&L Inventory
υδροξείδιο του νάτριου (el)
C&L Inventory
натриев хидроксид (bg)
C&L Inventory
сода каустик (bg)
C&L Inventory
CAS names
Sodium hydroxide (Na(OH))
Other
IUPAC names
50% sodium hydroxide solution
Registration dossier
Agent T007
Registration dossier
CAUSTIC SODA
C&L Inventory
caustic soda
C&L Inventory
Caustic Soda
Registration dossier
Caustic soda
Registration dossier
caustic soda
Registration dossier
Caustic soda lye
Registration dossier
Caustic soda, Soda caustic, Soda Lye
Registration dossier
caustic soda/sodium hydroxide
C&L Inventory
dium hydroxide
C&L Inventory
hydroxid sodný
C&L Inventory
hydroxid sodný (CZ)
C&L Inventory
Hydroxide, Sodium
C&L Inventory
hydroxyde de sodium , soude, caustic soda
Registration dossier
idrossido di sodio
C&L Inventory
Natriumhydroxid
C&L Inventory
natriumhydroxide
C&L Inventory
Natronlauge
Registration dossier
Nátrium-hidroxid
C&L Inventory
Reaction mass of 2,2'-iminodiethanol and potassium hydroxide and tetrapotassium pyrophosphate and dodecylbenzenesulphonic acid and Alcohols, C10-16, ethoxylated, sulfates, sodium salts and 68439-46-3
C&L Inventory
sodium hidroxyde
C&L Inventory
sodium hydeoxide
C&L Inventory
Sodium hydoxide
Registration dossier
Sodium hydroxid
C&L Inventory
SODIUM HYDROXIDE
C&L Inventory, Registration dossier, Other
Sodium Hydroxide
C&L Inventory, Registration dossier, Other
Sodium hydroxide
C&L Inventory, Registration dossier, Other
sodium hydroxide
C&L Inventory, Registration dossier, Other
Sodium Hydroxide
Registration dossier, Other
Sodium hydroxide
C&L Inventory, Registration dossier, Other
sodium hydroxide
Registration dossier, Other
Sodium Hydroxide (Caustic soda)
Registration dossier
Sodium hydroxide (Na(OH))
C&L Inventory
Sodium hydroxide (OR3)
Registration dossier
Sodium hydroxide - Evonik Industries GmbH
Registration dossier
sodium hydroxide caustic soda
C&L Inventory
Sodium hydroxide in aqueous solution
Registration dossier
sodium hydroxide solution
Registration dossier
sodium hydroxide, caustic soda
Registration dossier
Sodium hydroxide.
Registration dossier
sodium hydroxide/caustic soda
C&L Inventory
Sodium Hydroxide/caustic soda
Registration dossier
sodium hydroxide; caustic soda
C&L Inventory
SODIUM HYDROXIDE; Caustic soda; Aetznatron ...
C&L Inventory
Sodium hydroxyde
C&L Inventory
sodium hydroxyde
C&L Inventory
Sodium hydroxyde
Registration dossier
Sodium oxidanide
C&L Inventory, Registration dossier
sodium oxidanide
C&L Inventory, Registration dossier
sodium;hydroxide
C&L Inventory, Other
UPV5
C&L Inventory
Trade names
50 % Caustic soda
Registration dossier
Aetznatron
Registration dossier
Agent T007
Registration dossier
AQUAPEARL E-200
Registration dossier
AQUAPEARL HPS
Registration dossier
Borol
Registration dossier
CAS 1310-73-2
Registration dossier
caustic lye
Registration dossier
CAUSTIC SODA
Registration dossier
Caustic Soda
Registration dossier
Caustic soda
Registration dossier
caustic soda
Registration dossier
Caustic soda 20 % solution
Registration dossier
Caustic soda 30 % solution
Registration dossier
Caustic soda 50 % solution
Registration dossier
Caustic Soda Diaphragm Grade 10%, 15%, 18%, 20%, 25%, 30%, 35%, 40%, 50%
Registration dossier
caustic soda flakes
Registration dossier
Caustic soda liquor
Registration dossier
Caustic soda lye
Registration dossier
Caustic Soda Membrane 6%, 18%, 20%, 25%, 30%, 48%, 50%
Registration dossier
Caustic Soda NaOH
Registration dossier
Caustic Soda Pearl
Registration dossier
Caustic soda pearls
Registration dossier
Caustic Soda Solution
Registration dossier
Caustic soda solution
Registration dossier
caustic soda solution
Registration dossier
caustic soda, liquid
Registration dossier
caustic soda, solid
Registration dossier
Formosoda
Registration dossier
Hydroxid sodný
Registration dossier
Hydroxyde de sodium
Registration dossier
IL-IT
Registration dossier
IS-IT
Registration dossier
lye
Registration dossier
lye solution
Registration dossier
Membrane 30% Caustic Soda
Registration dossier
Membrane 50% Caustic Soda
Registration dossier
NaOH
Registration dossier
Natrium hydroxid
Registration dossier
Natriumhydroxid
Registration dossier
NATRONLAUGE
Registration dossier
Natronlauge
Registration dossier
Natronlauge 32% (PBG 10563296)
Registration dossier
Natronlauge 50% (PRD 30222040)
Registration dossier
Natronloog
Registration dossier
Polyanionic Cellulose Polymer
Registration dossier
SANFRESH DK-200VB
Registration dossier
SANFRESH DK-300V
Registration dossier
SANFRESH DK-500B
Registration dossier
SANFRESH ST-555
Registration dossier
SANWET EA-100
Registration dossier
soda kaustyczna
Registration dossier
Soda lye
Registration dossier
soda lye
Registration dossier
Soda, caustic
Registration dossier
Sodium Carboxymethyl Cellulose
Registration dossier
Sodium hydrate
Registration dossier
sodium hydrate solution
Registration dossier
Sodium Hydroxide
Registration dossier
Sodium hydroxide
Registration dossier
sodium hydroxide
Registration dossier
Sodium hydroxide (8CI)
Registration dossier
Sodium hydroxide (Na(OH)) (9CI)
Registration dossier
Sodium Hydroxide 50% Solution
Registration dossier
Sodium hydroxide in aqueous solution
Registration dossier
Sodium hydroxide liquid
Registration dossier
sodium hydroxide liquid
Registration dossier
SODIUM HYDROXIDE SOLUTION
Registration dossier
Sodium hydroxide solutions
Registration dossier
SODIUM HYDROXIDE, liquid
Registration dossier
Soude caustique en paillette
Registration dossier
soude caustique liquide 30-50%
Registration dossier
Wodorotlenek sodu
Registration dossier
ług sodowy 33%
Registration dossier
ług sodowy 50%
Registration dossier
Other identifiers
011-002-00-6
C&L Inventory
Index Number
1310-73-2
EC Inventory, C&L Inventory, Registration dossier, Pre-Registration process, CAD - Chemical Agents Directive, Art. 2(b)(i) - Hazardous Agents, Construction Product Regulation - Annex I (3) - Hazardous Substances, Construction Product Regulation - Art. 6(5) - SDS and Declaration, Cosmetic Products Regulation, Annex III - Restricted Substances, EU Ecolabels - Restrictions for Hazardous Substances/Mixtures, Active Implantable Medical Devices Directive - Hazardous Substances, Inland Transport of Dangerous Goods Directive, Annex III - ADN, Inland Transport of Dangerous Goods Directive, Annex I - ADR, Inland Transport of Dangerous Goods Directive, Annex II - RID, In Vitro Diagnostic Medical Devices Directive - Hazardous Substances, Marine Environmental Policy Framework Directive - Hazardous Substances, Medical Devices Directive - Hazardous Substances, FCM and Articles Regulation, Annex I - Authorised Substances, General Product Safety Directive - Hazardous Substances, FCMs Recycled Plastic & Articles Regulation - Annex I - Authorised Use, Workplace Signs - minimum requirements & signs on containers and pipes, Safety and Health of Workers at Work Directive - Hazardous Substances, Waste Framework Directive, Annex III - Waste - Hazardous Properties, Fertiliser Regulation- Annex I, E.3 (chelating and complexing agents), Other
CAS number
1418731-95-9
Other
CAS number
1418731-95-9
Other
Deleted CAS number
8012-01-9
Other
CAS number
8012-01-9
Other
Deleted CAS number

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