Agent Name |
Hydrogen |
CAS Number |
1333-74-0 |
Formula |
H2 |
Major Category |
Toxic Gases & Vapors |
Synonyms |
H; Hydrogen; Hydrogen atoms; Molecular hydrogen; Protium; [ChemIDplus] UN1049; UN1966; |
Category |
Simple Asphyxiants |
Description |
Colorless gas; [HSDB] |
Sources/Uses |
Used in welding (oxy-hydrogen and autogenous), petroleum refining, and as a coolant; Used to hydrogenate oils and other organic compounds and to reduce metal oxides; [Merck Index] |
Comments |
Simple asphyxiant; Contact with evaporating liquid can cause frostbite; [HSDB] |
Exposure Assessment |
Skin Designation (ACGIH) |
Not evaluated |
Flammability (NFPA) |
4: burns readily |
Adverse Effects |
Other Poison |
Simple Asphyxiant |
Links to Other NLM Databases |
Health Studies |
Human Health Effects from Hazardous Substances Data Bank: HYDROGEN
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