Acetylene, commonly known as calcium carbide gas, is the smallest member of the alkyne compound series. It is mainly used for industrial purposes, especially for welding metals. When it forms a cutting set with oxygen, it is commonly known as air coal. Air refers to compressed oxygen and coal refers to acetylene.
CAS No.
74-86-2
Formula
C2H2
Molecular Mass
26.04
Exact Mass
26.01570
PSA
0.00000
Logp
0.24940
IUPAC
acetylene
Attribute classification
Matter Classification
organic
Category
Chemical and Physical Properties
Melting Point
-88°C
Density
0.91
Boiling Point
-28°C
Flash Point
-18°C
Appearance
Colorless toxic gas. Slightly soluble in water, soluble in ethanol, benzene and acetone.