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

 

Acetylene

EC / List no.: 200-816-9

CAS no.: 74-86-2

Mol. formula: C2H2

formula
GHS02: Flammable GHS04: Gas under Pressure

Danger! According to the harmonised classification and labelling (CLP00) approved by the European Union, this substance is an extremely flammable gas.

Additionally, the classification provided by companies to ECHA in REACH registrations identifies that this substance is an extremely flammable gas and may react explosively even in the absence of air and contains gas under pressure and may explode if heated.

This substance is registered under the REACH Regulation and is manufactured in and / or imported to the European Economic Area, at ≥ 10 000 to < 100 000 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: fuels and welding & soldering products.
Other release to the environment of this substance is likely to occur from: indoor use in close systems with minimal release (e.g. cooling liquids in refrigerators, oil-based electric heaters), outdoor use in close systems with minimal release (e.g. hydraulic liquids in automotive suspension, lubricants in motor oil and break fluids), 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

Release to the environment of this substance can occur from industrial use: manufacturing of the substance, in processing aids at industrial sites and as an intermediate step in further manufacturing of another substance (use of intermediates).
This substance can be found in products with material based on: metal (e.g. cutlery, pots, toys, jewellery).

Widespread uses by professional workers

This substance is used in the following products: laboratory chemicals, fuels, welding & soldering products, metal surface treatment products and lubricants and greases.
This substance is used in the following areas: scientific research and development and building & construction work.
This substance is used for the manufacture of: fabricated metal 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), 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: welding & soldering products, fuels, metal surface treatment products, laboratory chemicals and lubricants and greases.
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, manufacturing of the substance and formulation in materials.

Uses at industrial sites

This substance is used in the following products: metal surface treatment products, laboratory chemicals, lubricants and greases, semiconductors, welding & soldering products and fuels.
This substance has an industrial use resulting in manufacture of another substance (use of intermediates).
This substance is used for the manufacture of: chemicals, electrical, electronic and optical equipment and fabricated metal products.
Release to the environment of this substance can occur from industrial use: in processing aids at industrial sites, as an intermediate step in further manufacturing of another substance (use of intermediates), as processing aid, of substances in closed systems with minimal release, manufacturing of the substance and in the production of articles.

Manufacture

Release to the environment of this substance can occur from industrial use: manufacturing of the substance, in processing aids at industrial sites, as an intermediate step in further manufacturing of another substance (use of intermediates) and formulation of mixtures.

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: 25/07/2022