High purity acetylene CAS 74-86-2

详情

Acetylene, also known as calcium carbide gas, is a colorless, slightly toxic, flammable gas at room temperature and pressure that has the effect of weakly anesthetizing and preventing cellular oxidation. Industrially, acetylene is produced by hydrolysis of a calcium carbonate-rich calcium carbide ore. Explosive limit in air 2.5% to *0%. Pure acetylene has no smell, but due to the production of acetylene in the calcium carbide raw materials contain a small amount of calcium sulfide and phosphide, solid industrial acetylene contains phosphine, hydrogen sulfide and other impurities and have a nasty garlic odor. Can not be liquefied at atmospheric pressure, insoluble in water, soluble in petroleum ether, ethanol, benzene and other organic solvents, in acetone solubility is very great, solid industrial acetylene is dissolved in acetone inside the acetylene, also called dissolved acetylene. Mainly used in metal welding and cutting, organic synthesis, atomic absorption spectroscopy, standard gas, calibration gas, synthetic rubber, lighting.