Substance Information

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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

 

Potassium dichromate

EC / List no.: 231-906-6

CAS no.: 7778-50-9

Mol. formula: Cr2K2O7

formula
GHS03: Oxidising GHS05: Corrosive GHS08: Serious Health Hazard GHS06: Acute Toxicity GHS09: Hazardous to the Environment

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.

Additionally, the classification provided by companies to ECHA in REACH registrations identifies that this substance may damage fertility or the unborn child, is suspected of causing genetic defects, is suspected of causing cancer and may cause respiratory irritation.

  • C

Carcinogenic

  • M

Mutagenic

  • R

Toxic to Reproduction

  • Ss

Skin sensitising

  • Sr

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).

This substance is registered under the REACH Regulation and is manufactured in and / or imported to the European Economic Area, at ≥ 100 to < 1 000 tonnes per annum.

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

This substance is used 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. 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.
This substance is used for the manufacture of: .
Release to the environment of this substance can occur from industrial use: formulation of mixtures, as an intermediate step in further manufacturing of another substance (use of intermediates) and as processing aid.
Other release to the environment of this substance is likely to occur from: indoor use as reactive substance.

Formulation or re-packing

This substance is used in the following products: metal surface treatment products, laboratory chemicals and metals.
This substance has an industrial use resulting in manufacture of another substance (use of intermediates).
Release to the environment of this substance can occur from industrial use: formulation of mixtures, formulation in materials, manufacturing of the substance, in processing aids at industrial sites, as an intermediate step in further manufacturing of another substance (use of intermediates), as processing aid and of substances in closed systems with minimal release.

Uses at industrial sites

This substance is used in the following products: metal surface treatment products, pharmaceuticals, textile treatment products and dyes and laboratory chemicals.
This substance has an industrial use resulting in manufacture of another substance (use of intermediates).
This substance is used in the following areas: formulation of mixtures and/or re-packaging.
This substance is used for the manufacture of: chemicals, machinery and vehicles, , metals and fabricated metal products.
Release to the environment of this substance can occur from industrial use: as an intermediate step in further manufacturing of another substance (use of intermediates), as processing aid, in the production of articles, in processing aids at industrial sites, of substances in closed systems with minimal release, formulation of mixtures 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), formulation of mixtures, of substances in closed systems with minimal release, formulation in materials, in processing aids at industrial sites and as processing aid.

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.

ECHA logo about INFOCARD - Last updated: 06/09/2023