OYSI

H261

Physical hazard

In contact with water releases flammable gases.

Flame

Associated GHS Pictograms

Flame

Flame

GHS02

Flammable. May ignite on contact with air, water, or heat sources.

Affected Substances

The following substances in our database carry the hazard statement H261:

aluminumCAS 7429-90-5AlcalciumCAS 7440-70-2CamagnesiumCAS 7439-95-4Mg

Related H-Statements

H200Unstable explosive.H201Explosive; mass explosion hazard.H220Extremely flammable gas.H221Flammable gas.H224Extremely flammable liquid and vapour.H225Highly flammable liquid and vapour.H226Flammable liquid and vapour.H227Combustible liquid.

Frequently Asked Questions

What does H261 mean?
The hazard statement H261 means: "In contact with water releases flammable gases.". It belongs to the category "Physical hazard" according to CLP Regulation (EC) No 1272/2008.
Which substances have H261?
In our database, 3 substances carry the hazard statement H261. The complete list can be found in the "Affected Substances" section on this page.
Which GHS pictogram belongs to H261?
The H-Statement H261 is associated with specific GHS pictograms that visually represent the type of hazard. The associated pictograms can be found at the top of this page.

According to CLP Regulation (EC) No 1272/2008. Information is for guidance only – for legally binding data, refer to the Safety Data Sheet (SDS).

All H-Statements