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Refrigerant CAS 75-28-5 Methylpropane Trimethylmethane 

Payment Terms: T/T,L/C;WU 
Place of Origin: Zhejiang, China (Mainland) 
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Product Detail

Model No.: R600a
Packing: Aaccording to the request o...
Brand Name: MOSINTER
Purity: ≥99.5%
Molecular formula: C4H10
Molecular weight: 58.12
Stability: Extremely flammable
ODP: 0
Density: 2.064 g/mL at 25 °C(lit.)
Means of Transport: Ocean,Land,Air
Delivery Date: within 7 days
CAS No.: 75-28-5
Boiling point: -12°C
Character: Colorless and Odorless
Melting point: -160°C
Solubility: Slightly soluble in water
GWP: 11

R600a is a new type of hydrocarbon refrigerant, without damage to the ozone layer, no greenhouse effect, it is a substitute for R12.

General Description of ISOBUTANE

ISOBUTANE is a colorless gas with a faint petroleum-like odor.   ISOBUTANE is shipped as a liquefied gas under its vapor pressure.   Contact with the liquid can cause frostbite.  ISOBUTANE is easily ignited.  The vapors are heavier than air.  Any leak can either be liquid or vapor.  ISOBUTANE can asphyxiate by the displacement of air.   Under prolonged exposure to fire or intense heat the containers may rupture violently and rocket.

Reactivity Profile

ISOBUTANE is incompatible with the following: Strong oxidizers (e.g., nitrates & perchlorates), chlorine, fluorine, (nickel carbonyl + oxygen) .


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 "isobutane" (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.

In the Chevron Phillips slurry process for making high-density polyethylene, isobutane is used as a diluent. As the slurried polyethylene is removed, isobutane is "flashed" off, and condensed, and recycled back into the loop reactor for this purpose.

Isobutane is also used as a propellant for aerosol cans and foam products.

Isobutane is used as part of blended fuels, especially common in fuel canisters used for camping.

Isobutane is also used as a raw material in the manufacture of propylene oxide, where it is oxidized to tert-butyl hydroperoxide and subsequently reacted with propylene to yield propylene oxide. The tert-butanol that results as a by-product is typically used to make gasoline additives such as methyl tert-butyl ether (MTBE).

Refrigerant use

As a refrigerant, isobutane has an explosion risk in addition to the hazards associated with non-flammable CFC refrigerants. Reports surfaced in late 2009 suggesting the use of isobutane as a refrigerant in domestic refrigerators was potentially dangerous. One refrigerator explosion reported in the United Kingdom was suspected to have been caused as a result of isobutane leaking into the refrigerator cabinet and being ignited by sparks in the electrical system. Although unclear how serious this could be, at the time this report came out it was estimated 300 million refrigerators worldwide use isobutane as a refrigerant.

Substitution of this refrigerant for motor vehicle air conditioning systems not originally designed for isobutane is widely prohibited or discouraged, on the grounds that using flammable hydrocarbons in systems originally designed to carry non-flammable refrigerant presents a significant risk of fire or explosion.

Vendors and advocates of hydrocarbon refrigerants argue against such bans on the grounds that there have been very few such incidents relative to the number of vehicle air conditioning systems filled with hydrocarbons.

Introduction of R600a

R600a is an encellent new type of hydrocarbon refrigerant. It is extracted from natural ingredients, won't damage the ozone layer, no greenhouse effect.It is green and environmental.


It is characterized by large latent heat of vaporization, strong cooling capacity, good flow performance, low transmission pressure, low power consumption and slow load temperature rise. It is compatible with all kinds of compressor lubricating oil. It is colorless at room temperature, and transform into colorless transparent liquid under its own pressure.


Mainly used for ultra-low temperature refrigerant.The refrigeration system composed with R22 is used for -120 ~ -80℃ cryogenic refrigeration unit .It is also used as foaming agent for foamed plastics, and is substitute for R12.

Health Hazard

Central nervous system depression ranging from dizziness and incoordination to anesthesia and respiratory arrest, depending on concentration and extent of inhalation.  Irregular heartbeat is rare but is a dangerous complication at anesthetic levels.

Fire Hazard

EXTREMELY FLAMMABLE.  Will be easily ignited by heat, sparks or flames. Will form explosive mixtures with air.  Vapors from liquefied gas are initially heavier than air and spread along ground.  CAUTION:  Hydrogen (UN1049), Deuterium (UN1957), Hydrogen, refrigerated liquid (UN1966) and Methane (UN1971) are lighter than air and will rise.  Hydrogen and Deuterium fires are difficult to detect since they burn with an invisible flame.  Use an alternate method of detection (thermal camera, broom handle, etc.) Vapors may travel to source of ignition and flash back.  Cylinders exposed to fire may vent and release flammable gas through pressure relief devices.  Containers may explode when heated.   Ruptured cylinders may rocket.


R-290 refrigerant cylinder is a pressure vessel and flammable, it should keep away from fire, heat, avoid direct sunlight, usually store in a cool, dry and ventilated warehouse.You should be lightly armed, light unloading, cylinders and valves and other accessories to prevent breakage when handling.

Quality index

Water content
Evaporated residue

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Business Type:Manufacturer, Trading Company
City: Ningbo
Province/State: Zhejiang
Country/Region: China (Mainland)

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