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Isobutylene (iso-C4H8)

UN1055 Isobutylene

Isobutylene is a flammable, colorless gas which has an unpleasant odor. It is shipped as a liquefied gas at its vapor pressure of 24 psig at 70F.

Product & Packaging Information

PurityCylinder SizeContentsCylinder Pressure 70FStandard Valve Outlet (CGA)
CP
99.0%
LP 1000
LP 239
530 lb
126 lb
24
24
510
510
Instr
99.5%
LP 1000
LP 239
530 lb
126 lb
24
24
510
510
3.0
99.9%
LP 1000
LP 239
530 lb
126 lb
24
24
510
510
4.0
99.99%
LP 1000
LP 239
530 lb
126 lb
24
24
510
510

Product Data
Molecular Weight58.12
Specific Volume6.7 cf / lb @ 70F
Liquid Density4.686 lb / gal
Flammability in Air1.8-8.4% in Air
U.S. D.O.T. Hazard Class2.1
U.S. D.O.T. LabelFlammable Gas / Isobutane
Fill Density53%

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