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Quick Detail:
Isobutane (i-butane), also known as methylpropane, is an isomer of butane. It is the simplest alkane with a tertiary carbon. Concerns with depletion of the ozone layer by freon gases have led to increased use of isobutane as a gas for refrigeration systems, especially in domestic refrigerators and freezers, and as a propellant in aerosol sprays. When used as a refrigerant or a propellant, isobutane is also known as R-600a. Some portable camp stoves use a mixture of isobutane with propane, usually 80:20. Isobutane is used as a feedstock in the petrochemical industry, for example in the synthesis of isooctane.

Description:
Isobutane is used as a refrigerant.The use in refrigerators started in 1993 when Greenpeace presented the Greenfreeze project with the German company Foron. In this regard, blends of pure, dry & quot;isobutane& quot; (R-600a) (that is, isobutane mixtures) have negligible ozone depletion potential and very low Global Warming Potential (having a value of 3.3 times the GWP of carbon dioxide) and can serve as a functional replacement for R-12, R-22, R-134a, and other chlorofluorocarbon or hydrofluorocarbon refrigerants in conventional stationary refrigeration and air conditioning systems.

Specifications：
Property of chloride : Molecular Weight 58.12
Boiling Point, °C -11.70
Critical Temperature, °C 134.71
Critical Pressure, Mpa 3.64
Specific Heat of Liquid, 25°C, [KJ/(kg?°C)] 2.38
ODP 0
GWP 0.1
Critical Density, (g/cm3) 0.221

Packing Disposable cylinder 14.3lb/6.5kg; Recyclable cylinder 100L, 926L; ISO-Tank.
Quality standard : Purity, % ≥99.5
Moisture, PPm ≤10
Acidity, PPm ≤1
Vapor Residue, PPm ≤100
Appearance Colorless, No turbid
Odor No Strange Stench

Application: Refrigerant, can replace R12.

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