PHYSICAL PROPERTIES
C4H10
Molecular weight
58.12
Boiling point ℃
-11.7
Critical temperature ℃
135
Critical pressure MPa
3.65
Ozone depleting potential
0
Global warming potential
3
 Isobutene is colorless and flammable gas at normal temperatures and pressures. Its melting point and boiling point are -11.73℃ and -159.4℃ respectively. It is slightly soluble in water and soluble in ethanol and ethyl ether. Explosive mixture with explosion limits to be 1.9%～8.4% (volume)  will be generated after mixing with the air. It mainly exists in natural gas, refinery gas and pyrolysis gas after physical separation or isomerization of normal butane.
APPLICATION SCOPE
  Isobutane R600a is used as aerosol, foaming agent for foamed plastic and ultraslow temperature refrigerant to substitute R12 and R134a in refrigerator, freezer and other small low temperature refrigeration equipment (applied on low temperature refrigeration equipment with less filling amount) and be applied in -80～-120℃ ultraslow temperature refrigeration equipment.
QUALITY STANDARD
Purity≥%
99.9
Moisture≤%
0.001
Acidity≤%
0.0001
Evaporated residue≤%
0.01
Appearance
Colorless transparent liquid
Odor
Odorless
PACKING
Refrigerant steel cylinder：120g
One-off steel cylinder：5kg  6.5kg  10kg  11kg
Recycled steel cylinder： 118L  400L  800L  926L 
ISO TANK   Tank car