Substance Information
Substance Information
REACH Registration data can be found in the new ECHA CHEM database. The old ‘Registered substance factsheets’ will be available on this web site during the transition period but have not been updated since 19 May 2023. More
Ammonium dichromate
EC / List no.: 232-143-1
CAS no.: 7789-09-5
Mol. formula: Cr2H8N2O7
Danger! According to the harmonised classification and labelling (CLP00) approved by the European Union, this substance is fatal if inhaled, is toxic if swallowed, causes severe skin burns and eye damage, may cause genetic defects, may cause cancer, may damage fertility and may damage the unborn child, causes damage to organs through prolonged or repeated exposure, is very toxic to aquatic life, is very toxic to aquatic life with long lasting effects, may intensify fire (oxidiser), is harmful in contact with skin, may cause an allergic skin reaction and may cause allergy or asthma symptoms or breathing difficulties if inhaled.
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Carcinogenic |
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Mutagenic |
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Toxic to Reproduction |
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Skin sensitising |
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Respiratory sensitising |
- Substance of very high concern (SVHC) and included in the candidate list for authorisation.
- Substance of very high concern requiring authorisation before it is used (Annex XIV of REACH).
- Some uses of this substance are restricted under Annex XVII of REACH.
This substance is registered under the REACH Regulation but is not currently being manufactured in and / or imported to the European Economic Area.
This substance is used by professional workers (widespread uses) and at industrial sites.
This substance is used by professional workers (widespread uses) and at industrial sites.
Consumer Uses
ECHA has no public registered data indicating whether or in which chemical products the substance might be used. ECHA has no public registered data on the routes by which this substance is most likely to be released to the environment.
Article service life
ECHA has no public registered data on the routes by which this substance is most likely to be released to the environment. ECHA has no public registered data indicating whether or into which articles the substance might have been processed.
Widespread uses by professional workers
This substance is used in the following products:
laboratory chemicals.
This substance is used in the following areas:
scientific research and development.
Release to the environment of this substance can occur from industrial use:
manufacturing of the substance and
of substances in closed systems with minimal release.
Formulation or re-packing
ECHA has no public registered data indicating whether or in which chemical products the substance might be used. ECHA has no public registered data on the routes by which this substance is most likely to be released to the environment.
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:
scientific research and development.
This substance is used for the manufacture of:
chemicals.
Release to the environment of this substance can occur from industrial use:
of substances in closed systems with minimal release and
as an intermediate step in further manufacturing of another substance (use of intermediates).
Manufacture
ECHA has no public registered data on the routes by which this substance is most likely to be released to the environment.
The InfoCard summarises the non-confidential data on substances as held in the databases of the European Chemicals Agency (ECHA), including data provided by third parties. The InfoCard is automatically generated. Information requirements under different legislative frameworks may therefore not be up–to–date or complete. Substance manufacturers and importers are responsible for consulting official publications. This InfoCard is covered by the ECHA Legal Disclaimer.
about INFOCARD - Last updated: 06/09/2023