Isobutane is an isomer of n-butane. An isomer is a molecule of identical formulation of atoms but in a different arrangement. Isomers do not always share similar properties however, in the case of these two gases, they are very alike.
Formula: C4H10 or R600A
What is Isobutane?
Isobutane is a colorless, odorless gas that is used in the petrochemical industry, used as a diluent, refrigerant, solvent, propellant, and as part of fuel gas blends. It is also used in the production of plastics. Isobutane, an isomer of butane, is different from n-Butane, it has the same formula chemically but with a different atom arrangement. Isobutane is not a global warming threat and does not deplete the ozone.
- Calibration work and filling of thermobulbs in instruments such as temperature and pressure gauges
- Intermediate in the manufacturing of aviation fuel
- Manufacturing of organic compounds
- Propellant for aerosol cans and foam products
- Part of blended fuels, especially in fuel canisters used for camping
|Grade 2||Grade 2.5||Grade 3||Grade 3.5||Grade 4||Grade 4.5|
|Nitrogen||< 800 ppmv||< 400 ppmv||< 160 ppmv||< 20 ppmv||< 20 ppmv||< 10 ppmv|
|Oxygen||< 200 ppmv||< 100 ppmv||< 40 ppmv||< 5 ppmv||< 5 ppmv||< 2 ppmv|
|Other Hydrocarbons||< 9000 ppmv||< 4900 ppmv||< 1000 ppmv||< 500 ppmv||< 90 ppmv||< 45 ppmv|
|Sulfur||< 1 ppmv||< 1 ppmv||< 1 ppmv||< 1 ppmv||< 1 ppmv||< 1 ppmv|
|Moisture||< 10 ppmv||< 5 ppmv||< 4 ppmv||< 3 ppmv||< 2 ppmv||< 2 ppmv|
|Total Impurities||< 1 %||< 5000 ppmv||< 1000 ppmv||< 500 ppmv||< 100 ppmv||< 50 ppmv|
|Chemical & Physical Properties|
|Specific Volume||6.50 cf/lb|
|Pressure @ 70° F||31 psig|
|Flammability Limits||1.8-8.4% in Air|
|Valve Outlet||CGA 510 LB CGA 170|
|DOT No.||UN 1969|
|DOT Label||Flammable Gas|
|Cylinder Size||Fill Weight (lbs)|
FAQs about Isobutane
Butane is converted into isobutane by isomerization. Isomerization occurs by heating the gas with a catalyst present. The catalyst increases a reaction rate of a process without disappearing itself.
Isobutane is a component in gasoline for your car, as a propellant in aerosols such as hairspray, and is a component in refrigeration that keeps your perishable foods at an optimum temperature after being produced, on the journey to the store, and in your own home.
**Moisture level guaranteed only when Electronic Fluorocarbons prepares the cylinders.
All concentrations are on a mol/mol basis unless otherwise stated.
This product is analyzed liquid phase.
*This gas not available for purchase online.