... lighting, welding and cutting metals and so on 1. Using:High Purity acetylene can be used in lighting, welding and cutting metals ... very wide, 2.5% and 80%, and is insoluble in water, soluble in petroleum ether , ethanol, organic solvents, such as benzene ... to acetone, storage and security. 3:attention:Acetylene can produce high-temperature combustion, the oxy-acetylene flame temperature can reach 32 ...