It is mainly used for CCA, wood preservative, catalyst, fireworks, pesticide, pigment, feed, fungicide, electroplating, anticorrosion and copper compound manufacturing.

Used as glass, porcelain colorant, desulfurizer for oil hydrogenating agent, Organic synthesis catalyst, artificial silk manufacturing, gas analysis, etc.

Mainly used in silicon ingot, mordant, oxidant, wood preservative, food additive, disinfectant, etc., also used in petroleum distillate deodorization and desulfurization, metal extraction, photography, etc.