GHS hazard statement
H250: Catches fire spontaneously if exposed to air
- H250
- Physical hazards
- Danger
H250 means “Catches fire spontaneously if exposed to air”. It is a GHS hazard statement for Pyrophoric liquids; Pyrophoric solids (Category 1), shown with GHS02 under the signal word “Danger”.
Hazard class and category
| Hazard class | Category | Pictogram | Signal word | UN transport class |
|---|---|---|---|---|
| Pyrophoric liquids | Category 1 |  | Danger | Div 4.2 |
| Pyrophoric solids | Category 1 | | Danger | Div 4.2 |
What H250 means
Pyrophoric liquids
Pyrophoric liquids are liquids that, even in small quantities, ignite within five minutes of coming into contact with air.
The liquid can catch fire spontaneously in air without any spark or flame.
Pyrophoric solids
Pyrophoric solids are solids that, even in small quantities, ignite within five minutes of coming into contact with air.
The solid can catch fire spontaneously in air without any spark or flame.
What to do
Pyrophoric liquids
Handle and store under inert gas or in the sealed container the supplier specifies, keep away from air and moisture, and use only with trained staff and the protective equipment named on the SDS.
Pyrophoric solids
Handle and store under inert gas or in the sealed container the supplier specifies, keep away from air and moisture, and use only with trained staff and the protective equipment named on the SDS.
This is general guidance for the hazard class. The safety data sheet for your product always takes precedence.
Precautionary statements for H250
The GHS lists these precautionary statements for this hazard. Which ones appear on a label depends on the supplier's classification.
| Code | Statement |
|---|---|
| P210 | Keep away from heat, hot surface, sparks, open flames and other ignition sources. No smoking. |
| P222 | Do not allow contact with air. |
| P231 | Handle and store contents under inert gas/... |
| P233 | Keep container tightly closed. |
| P280 | Wear protective gloves/protective clothing/eye protection/face protection/hearing protection/... |
| P302+P334 | IF ON SKIN: Immerse in cool water or wrap in wet bandages. |
| P370+P378 | In case of fire: Use ... to extinguish. |
| P302+P335+P334 | Brush off loose particles from skin. Immerse in cool water [or wrap in wet bandages]. |
Chemicals carrying H250
1 chemical in our database. Classification comes from each chemical's primary GHS source, so a supplier's SDS may differ.
H250 frequently asked questions
What does H250 mean?
H250 means "Catches fire spontaneously if exposed to air". It is a GHS hazard statement in the physical hazards group, covering Pyrophoric liquids; Pyrophoric solids (Category 1).
Which pictogram goes with H250?
H250 is shown with GHS02 (Flame). By category: Category 1: GHS02, signal word Danger; Category 1: GHS02, signal word Danger.
What signal word goes with H250?
It depends on the category: Category 1: GHS02, signal word Danger; Category 1: GHS02, signal word Danger.
Which precautionary statements go with H250?
The GHS data lists 8 precautionary statements for H250, including P210, P222, P231, P233, P280. They cover prevention, response, storage and disposal. The full list is on this page.
Hazard statements describe the hazard of a classified substance or mixture. The classification of a specific product can differ, so use the supplier's SDS.
https://pubchem.ncbi.nlm.nih.gov/ghs/ghscode_10.txt (UN GHS Revision 10, retrieved 2026-10-12)