Substance Information

Name1,3-Butadiene
CAS No106-99-0
EC No203-450-8
EC Index No601-013-00-X
FormulaC4H6
SMILESC=CC=C
InChIInChI=1/C4H6/c1-3-4-2/h3-4H,1-2H2
Molar Heat of Combustion2409.6 kJ/mol
Vapour Density1.8671 
Stoichiometric Concentration3.6695 %v
Substance TypeFlammable
State of MatterGas
Molecular Weight54.09 g/mol
Molar Volume83.574 cm3/mol
Density0.6472 g/cm3
Boiling Point268.74 K (-4.4073°C)
Specific Heat Ratio1.12
Specific Heat of Combustion44.548 MJ/kg (44548 kJ/kg)
Lower Flammability Limit2 %v
Upper Flammability Limit11.5 %v
RMP Plume TypeDense
RMP Density Factor0.75 ft2/lb
RMP Gas Factor24
RMP Liquid Factor Boiling0.14
RMP Flash Fraction Factor0.15
RMP Pool Fire Factor5.5
AccessPublic
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