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
Potassium sulphite
EC / List no.: 233-321-1
CAS no.: 10117-38-1
Mol. formula: K2O3S
This substance is registered under the REACH Regulation and is manufactured in and / or imported to the European Economic Area, at ≥ 1 000 to < 10 000 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.
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
This substance is used in the following products:
photo-chemicals,
inks and toners and
washing & cleaning products.
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) and
outdoor use as reactive substance.
Article service life
Other release to the environment of this substance is likely to occur from:
outdoor use in long-life materials with low release rate (e.g. metal, wooden and plastic construction and building materials) and
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).
This substance can be found in products with material based on:
paper (e.g. tissues, feminine hygiene products, nappies, books, magazines, wallpaper).
Widespread uses by professional workers
This substance is used in the following products:
pH regulators and water treatment products,
photo-chemicals,
water treatment chemicals and
paper chemicals and dyes.
This substance is used in the following areas:
mining,
printing and recorded media reproduction and
municipal supply (e.g. electricity, steam, gas, water) and sewage treatment.
This substance is used for the manufacture of:
pulp, paper and paper products.
Release to the environment of this substance can occur from industrial use:
formulation of mixtures,
in processing aids at industrial sites and
as processing aid.
Other release to the environment of this substance is likely to occur from:
indoor use as reactive substance and
outdoor use as reactive substance.
Formulation or re-packing
This substance is used in the following products:
photo-chemicals,
water treatment chemicals and
washing & cleaning products.
Release to the environment of this substance can occur from industrial use:
formulation of mixtures,
formulation in materials,
in processing aids at industrial sites and
as processing aid.
Other release to the environment of this substance is likely to occur from:
indoor use as reactive substance.
Uses at industrial sites
This substance is used in the following products:
pH regulators and water treatment products,
photo-chemicals,
water treatment chemicals,
inks and toners and
paper chemicals and dyes.
This substance is used in the following areas:
mining,
printing and recorded media reproduction and
municipal supply (e.g. electricity, steam, gas, water) and sewage treatment.
This substance is used for the manufacture of:
chemicals and
pulp, paper and paper products.
Release to the environment of this substance can occur from industrial use:
as processing aid,
in processing aids at industrial sites,
as an intermediate step in further manufacturing of another substance (use of intermediates) and
formulation of mixtures.
Other release to the environment of this substance is likely to occur from:
indoor use as reactive substance.
Manufacture
Release to the environment of this substance can occur from industrial use:
manufacturing of the substance,
formulation of mixtures,
formulation in materials,
in processing aids at industrial sites,
in the production of articles,
as an intermediate step in further manufacturing of another substance (use of intermediates),
as processing aid,
as processing aid and
of substances in closed systems with minimal release.
Other release to the environment of this substance is likely to occur from:
indoor use as reactive substance.
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