Characteristics: colorless flammable gas or liquid, with strong unpleasant ammonia odor when in high concentration or compressed liquefaction, and fishy odor when the concentration is extremely low
Boiling point: 6.9°C
Relative density: 0.654
Refractive index: 1.347
Flash point: -17.78°C
Solubility: Soluble in water, soluble in ethanol and ether
Used as raw material for production of drugs, dyes, pesticides, leather dehairing agents, rubber vulcanization accelerators, rocket propellants, etc.