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Molecular formula: C2H4
molecular weight: 28.05
CAS:
density: 1.260
melting point: -169.4 ° C
boiling point: -103.9 ° C
flash point: -66.9 ° C
Vapor Pressure: 2039 (-150 ° C); 24001 (-125 ° C); 130,000 (-100 ° C)
traits: a sweet flavor colorless gas.
dissolution: almost do not dissolve in water, slightly soluble in ethanol, dissolved in ethyl ether, acetone, benzene.
purposes: is a basic petrochemical raw materials. Used in the manufacture of synthetic rubber, synthetic resin, synthetic fiber, plastics and other. Synthesis of explosives and could also ethanol, acetaldehyde, acetic acid, ethylene oxide, organic and synthetic products to replace acetylene cutting and welding metals, can also serve as artificial fruit to mature accelerator.
preparation or sources: by liquefied natural gas, liquefied petroleum gas, naphtha, light diesel oil and heavy oil, or by cracking the pyrolysis gas separation, while production of propylene, butylene Lean, toluene, and xylene. They may be the separation of coke oven gas, or ethanol in the presence of alumina catalysts derived dehydration.
Note: burning 543 ° C Critical 5.042 MPa pressure. The critical temperature of 9.2 ° C Formation of explosive mixtures with air, the explosion limit 3.02% -34%. Chemical properties lively.
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