... powder: The Calcium carbide granularity can be provided accord is to the reguirement of clients.[Usage]: Calcium carbide is an important ... synthesis industry, Acetylene obtanied from calcium carbide is raw material to make ethylene, chloroprene rubber, calcium cyanamide, acetic acd, acetaldehydr, ethylacetate ... %(V/V)≤0.100.100.15 Direct from factory, with better price.