copper oxide black 

   Copper oxide (CuO) is a kind of copper oxide slightly gender, black, slightly hygroscopic. The relative molecular mass for 79.545, density of 6.3-7 cm, melting g/nized degrees Celsius. Insoluble in water, soluble in acid, and alcohol copolymer and QingHuaJia solution, ammonia solution slowly dissolve.

   Usage: making rayon, ceramics, glaze and enamel, batteries, oil desulfurizer, pesticides, also for hydrogen, catalyst, green glass etc.