Also known as calcium carbide gas [3], anthracite

Chemical formula C2H2 [3]

Molecular weight 26.037 [3]

CAS Login Number 74-86-2 [3]

EINECS Entry Number 200-816-9 [3]

Melting point -81.8 ℃ (198K, sublimation)

Boiling point -84 ℃

Water soluble slightly soluble in water

Density 0.62 kg/m³ (-82℃)

Colorless and odorless gas on the outside

Flash point -17.78 ° C

Welding, organic synthetic raw materials and monomers, lighting should be used

Security Description S9; S16; S33

Danger symbol F+:Highlyflammable

Hazard Description R5

UN Dangerous Goods Number 1001

Spelling y Li qu

The spatial configuration is linear

Hybrid mode sp

MDL number MFCD00008567

Dangerous Goods No. 21024