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High Purity I-Butane Gas (C4H10) Hydrocarbon Gases
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Contact usSpecifications
| Purity , % | 99.5 | 99.95 | 99.99 |
| Oxygen | ≤ 100 ppm | ≤ 5 ppm | ≤ 5 ppm |
| Nitrogen | ≤ 400 ppm | ≤20 ppm | ≤20 ppm |
| Other Hydrocarbons | ≤ 5000 ppm | ≤ 500 ppm | ≤ 90 ppm |
| Water | ≤ 10 ppm | ≤ 6 ppm | ≤ 2 ppm |
| Sulfur | ≤ 1 ppm | ≤ 1 ppm | ≤ 1 ppm |
Technical Information
| Cylinder State @ 21.1°C | Liquid |
| Flammable Limits In Air | 1.8-8.4% |
| Auto Ignition Temperature (°C ) | 460 |
| Molecular Weight (g/mol) | 58.124 |
| Specific gravity (air =1) | 2.007 |
| Critical Temperature ( °C ) | 134.98 |
| Critical Pressure ( psig ) | 514.4 |
Description
Isobutane, also known as i-butane, 2-methylpropane or methylpropane, is a chemical compound with molecular formula HC(CH3)3. It is an isomer of butane. Isobutane is a colorless, odorless gas. It is the simplest alkane with a tertiary carbon atom. Isobutane is used as a precursor molecule in the petrochemical industry, for example in the synthesis of isooctane.Isobutane is also used as a propellant for aerosol spray cans.Isobutane is used as part of blended fuels, especially common in fuel canisters used for camping.
Isobutane is used as a refrigerant.Use in refrigerators started in 1993 when Greenpeace presented the Greenfreeze project with the former East German company Foron [de].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 (both of these being commonly known by the trademark Freon), R-134a, and other chlorofluorocarbon or hydrofluorocarbon refrigerants in conventional stationary refrigeration and air conditioning systems.As a refrigerant, isobutane poses a fire and explosion risk in addition to the hazards associated with non-flammable CFC refrigerants. Substitution of this refrigerant for motor vehicle air conditioning systems not originally designed for isobutane is widely prohibited or discouraged.
Applications
· As a propellant .
· As a solvent .
· As a refrigerant .
· As reagent gas in chemical ionization mass spectrometry .
· In the manufacturing of calibration mixtures.
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