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1,3-Butadiene (data page)

Properties

General
Name 1,3-Butadiene

CH2=CH-CH=CH2
Chemical formula C4H6
Molar mass 50.09 g/mol
Synonyms butadiene, biethylene, divinyl, erythrene, vinylethylene
CAS number 106-99-0

Phase behavior
Melting point 164.3 K (-108.9 °C)
Boiling point 268.8 K (-4.4°C)
Triple point 164.2 K (-109.0°C)

? bar
Critical point 425 K (152°C)

43.2 bar

Structure
Symmetry group C2h

Gas properties
ΔfH0 110.2 kJ/mol
S0  ? J/mol·K
Cp 79.5 J/mol·K

Liquid properties
ΔfH0 90.5 kJ/mol
S0 199.0 J/mol·K
Cp 123.6 J/mol·K
Liquid density 0.64 ×103 kg/m3

Safety
Acute effects Possible irritation to skin and mucous membranes. Inhalation of concentrated vapors causes drowsiness and CNS depression.
Chronic effects Possible carcinogen.
Flash point -85°C
Autoignition temperature 418°C
Explosive limits 2-12%

More info
Properties NIST WebBook
MSDS Hazardous Chemical Database

SI units were used where possible. Unless otherwise stated, standard conditions were used.

Disclaimer and references
The original article is from Wikipedia. To view the original article please click here.
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