Substance Information
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
Sodium hydrogensulfite
EC / List no.: 231-548-0
CAS no.: 7631-90-5
Mol. formula:
Warning! According to the harmonised classification and labelling (CLP00) approved by the European Union, this substance is harmful if swallowed.
This substance is registered under the REACH Regulation and is manufactured in and / or imported to the European Economic Area, at ≥ 100 000 to < 1 000 000 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.
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:
fertilisers,
photo-chemicals,
washing & cleaning products,
fillers, putties, plasters, modelling clay and
textile treatment products and dyes.
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.
Article service life
Release to the environment of this substance can occur from industrial use:
industrial abrasion processing with low release rate (e.g. cutting of textile, cutting, machining or grinding of metal).
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:
stone, plaster, cement, glass or ceramic (e.g. dishes, pots/pans, food storage containers, construction and isolation material),
wood (e.g. floors, furniture, toys),
leather (e.g. gloves, shoes, purses, furniture),
fabrics, textiles and apparel (e.g. clothing, mattress, curtains or carpets, textile toys),
paper (e.g. tissues, feminine hygiene products, nappies, books, magazines, wallpaper),
fabrics, textiles and apparel used for articles with intense direct dermal (skin) contact during normal use (e.g. clothing, shirts, pants, shorts) and
leather used for articles with intense direct dermal (skin) contact during normal use (e.g. clothing such as jackets, shoes, or gloves).
Widespread uses by professional workers
This substance is used in the following products:
polishes and waxes,
coating products and
pH regulators and water treatment products.
This substance is used in the following areas:
mining,
agriculture, forestry and fishing,
printing and recorded media reproduction,
building & construction work and
municipal supply (e.g. electricity, steam, gas, water) and sewage treatment.
This substance is used for the manufacture of:
wood and wood products,
furniture,
pulp, paper and paper products,
food products,
textile, leather or fur and
mineral products (e.g. plasters, cement).
Release to the environment of this substance can occur from industrial use:
in processing aids at industrial sites,
as processing aid,
formulation of mixtures,
as an intermediate step in further manufacturing of another substance (use of intermediates),
manufacturing of the substance and
in the production of articles.
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.
Formulation or re-packing
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,
as processing aid,
in processing aids at industrial sites,
manufacturing of the substance,
as an intermediate step in further manufacturing of another substance (use of intermediates),
in the production of articles and
of substances in closed systems with minimal release.
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.
Uses at industrial sites
This substance is used in the following products:
polymers.
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,
mining and
printing and recorded media reproduction.
This substance is used for the manufacture of:
chemicals,
pulp, paper and paper products,
textile, leather or fur,
rubber products and
plastic products.
Release to the environment of this substance can occur from industrial use:
as processing aid,
in processing aids at industrial sites,
formulation of mixtures,
manufacturing of the substance,
as an intermediate step in further manufacturing of another substance (use of intermediates) and
in the production of articles.
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.
Manufacture
Release to the environment of this substance can occur from industrial use:
manufacturing of the substance,
as processing aid,
in processing aids at industrial sites,
as an intermediate step in further manufacturing of another substance (use of intermediates),
formulation of mixtures,
for thermoplastic manufacture,
as processing aid and
of substances in closed systems with minimal release.
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: 18/05/2023