REACH regulation aims to improve the protection of human health and the environment from the risks that can be posed by chemicals.
The CLP Regulation ensures that the hazards presented by chemicals are clearly communicated to workers and consumers in the European Union through classification and labelling of chemicals.
BPR regulation aims to improve the functioning of the biocidal products market in the EU, while ensuring a high level of protection for humans and the environment.
approval of active substances
Authorisation of biocidal products
Guidance and IT-tools
The Prior Informed Consent Regulation administers the import and export of certain hazardous chemicals and places obligations on companies who wish to export these chemicals to non-EU countries.
lists of Chemicals subject to pic
The POPs Regulation bans or severely restricts the production and use of persistent organic pollutants in the European Union.
Occupational exposure limit (OEL) values are derived within two legal frameworks that form an integral part of the EU’s mechanism for protecting the health of workers.
The Waste Framework Directive aims to protect the environment and human health from the generation and management of waste and to improve efficient use of resources.
The revised Drinking Water Directive aims to protect citizens and the environment from the harmful effects of contaminated drinking water and to improve access to drinking water.
ECHA organises consultations to get feedback from all interested parties and to gather the widest possible range of scientific information for the regulatory processes
This is unique source of information on the chemicals manufactured and imported in Europe. It covers their hazardous properties, classification and labelling, and information on how to use them safely.
opinions and agreements
The Support section provides tools and practical guidance to companies which have responsibilities under the EU chemicals legislation.
EC / List no.: 231-978-9
CAS no.: 7783-07-5
Mol. formula: H2Se
According to the harmonised classification and labelling
approved by the European Union, this substance
is toxic if swallowed,
is toxic if inhaled,
is very toxic to aquatic life,
is very toxic to aquatic life with long lasting effects and
may cause damage to organs through prolonged or repeated exposure.
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.
Welcome to the ECHA website. This site is not fully supported in Internet Explorer 7 (and earlier versions). Please upgrade your Internet Explorer to a newer version.
Do not show this message again