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
Magnesium hydroxide
EC / List no.: 215-170-3
CAS no.: 1309-42-8
Mol. formula: H2MgO2
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:
lubricants and greases,
anti-freeze products,
adhesives and sealants,
polishes and waxes,
coating products,
fillers, putties, plasters, modelling clay,
washing & cleaning products and
air care products.
Other release to the environment of this substance is likely to occur from:
outdoor use,
indoor use (e.g. machine wash liquids/detergents, automotive care products, paints and coating or adhesives, fragrances and air fresheners),
indoor use in close systems with minimal release (e.g. cooling liquids in refrigerators, oil-based electric heaters) and
outdoor use in close systems with minimal release (e.g. hydraulic liquids in automotive suspension, lubricants in motor oil and break fluids).
Article service life
Release to the environment of this substance can occur from industrial use:
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),
outdoor use,
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),
outdoor use in long-life materials with low release rate (e.g. metal, wooden and plastic construction and building materials),
indoor use in close systems with minimal release (e.g. cooling liquids in refrigerators, oil-based electric heaters) and
outdoor use in close systems with minimal release (e.g. hydraulic liquids in automotive suspension, lubricants in motor oil and break fluids).
This substance can be found in complex articles, with no release intended:
vehicles and
machinery, mechanical appliances and electrical/electronic products (e.g. computers, cameras, lamps, refrigerators, washing machines).
This substance can be found in products with material based on:
plastic (e.g. food packaging and storage, toys, mobile phones),
paper (e.g. tissues, feminine hygiene products, nappies, books, magazines, wallpaper),
metal (e.g. cutlery, pots, toys, jewellery),
rubber (e.g. tyres, shoes, toys),
stone, plaster, cement, glass or ceramic (e.g. dishes, pots/pans, food storage containers, construction and isolation material) and
wood (e.g. floors, furniture, toys).
Widespread uses by professional workers
This substance is used in the following products:
lubricants and greases,
anti-freeze products,
coating products,
polishes and waxes,
adhesives and sealants,
polymers and
fillers, putties, plasters, modelling clay.
This substance is used in the following areas:
building & construction work,
agriculture, forestry and fishing and
mining.
This substance is used for the manufacture of:
chemicals,
plastic products,
textile, leather or fur,
pulp, paper and paper products,
machinery and vehicles and
electrical, electronic and optical equipment.
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),
outdoor use,
indoor use in close systems with minimal release (e.g. cooling liquids in refrigerators, oil-based electric heaters) and
outdoor use in close systems with minimal release (e.g. hydraulic liquids in automotive suspension, lubricants in motor oil and break fluids).
Formulation or re-packing
This substance is used in the following products:
polymers,
lubricants and greases,
fertilisers,
pharmaceuticals and
coating products.
Release to the environment of this substance can occur from industrial use:
formulation of mixtures,
formulation in materials,
in the production of articles,
as processing aid,
as an intermediate step in further manufacturing of another substance (use of intermediates) and
for thermoplastic manufacture.
Uses at industrial sites
This substance is used in the following products:
polymers,
lubricants and greases,
pH regulators and water treatment products,
laboratory chemicals,
anti-freeze products and
coating products.
This substance has
an industrial use resulting in manufacture of another substance (use of intermediates).
This substance is used in the following areas:
municipal supply (e.g. electricity, steam, gas, water) and sewage treatment,
formulation of mixtures and/or re-packaging and
building & construction work.
This substance is used for the manufacture of:
chemicals,
plastic products,
pulp, paper and paper products,
rubber products and
textile, leather or fur.
Release to the environment of this substance can occur from industrial use:
in processing aids at industrial sites,
in the production of articles,
as processing aid,
as an intermediate step in further manufacturing of another substance (use of intermediates),
of substances in closed systems with minimal release,
as processing aid,
for thermoplastic manufacture and
formulation in materials.
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).
Manufacture
Release to the environment of this substance can occur from industrial use:
manufacturing of the substance 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.
about INFOCARD - Last updated: 06/09/2023