... a colorless pure slightly aromatic odor of gas, since the acetylene from calcium carbide system containing phosphine, arsine, and ... , storage and security. 3:attention:Acetylene can produce high-temperature combustion, the oxy-acetylene flame temperature can reach 32 , ... with many reagent reacted. In the 20th century, before the 1960s, acetylene organic synthesis is the most important raw material, is ...