Nickname2-methylpropane
Purity99.5%
Chemical FormulaC4H10
CAS75-28-5
EINECS200-857-2
Usage：
Iso-butane , also known as R-600a, is a new hydrocarbon refrigerant with excellent performance. it is environmental friendly, with no greenhouse effect, no destruction to the ozone layer.
Features include high evaporation latent heat, efficient cooling capacity, good mobility, low transport pressure and power consumption, slow load temperature rise and compatible with lubricating oil of all kinds of compression engine.
| Item | Unit | Specification | Test Method |
|---|---|---|---|
| Iso-Butane | % (wt) | ≥99.5 | SH/T 0714 |
| N-Butane | ≤0.5 | SH/T 0714 | |
| Propane | % (wt) | ≤0.5 | SH/T 0714 |
| Butane-1 | ppm (wt) | ≤97 | SH/T 0714 |
| 1,3-Butadiene | ppm (wt) | ≤3 | SH/T 0714 |
| ethyne | ppm (wt) | ≤0.5 | SH/T 0714 |
| C3 and lighter | % (wt) | ≤2.1 | SH/T 0714 |
| C5 and heavier | ppm (wt) | ≤600 | SH/T 0714 |
| Carbonyl group(=O) | ppm (wt) | ≤2.5 | GB/T 6324.5-2008 |
| carbinol (-OH) | ppm (wt) | ≤6 | SH/T 1547-2004 |
| carbon monoxide | ppm (wt) | ≤1 | GB/T 3394-2009 |
| carbon dioxide | ppm (wt) | ≤5 | GB/T 3394-2009 |
| hydrogen | ppm (wt) | ≤9 | GB/T 8981-2008 |
| oxygen | ppm (wt) | ≤5 | GB/T 6285-2003 |
| water | ppm (wt) | ≤20 | SH/T 0246 |
| sulfur | ppm (wt) | ≤1 | SH/T 0689 |
| chlorine Cl- | ppm (wt) | ≤1 | GB/T 14454.12-2008 |
| ammonia | ppm (wt) | ≤1 | GB/T 14668-1993 |
| Aromatic Hydrocarbon | ppm (wt) | ≤18 | SH/T 0714 |
| Benzene | ppm(wt) | ≤1.3 | SH/T 0714 |
Attention：
Flammable, will form explosive mixture with air, may result in combustion and explosion if expose to source of heat or open fire.React violently with oxidizing agent. It is heavier than air, will spread to distant area at lower levels, and strike-back if come into source of ignition.(Deficient R600a in refrigeration system would cause high pressure and abnormal noise,thus shortened life expectancy of compression engine)
