Cupric hydroxide 
 Chemical formula Cu (OH) 2, molecular weight 97.56. Light blue crystal powder, density 3.368g/cm3. 
 Usage: reagents for the analysis, but also for medicine, pesticide and so on. 
 Traits: blue or blue-green gel or light blue crystalline powder, insoluble in water, micro-display gender, soluble in acid, ammonia and sodium cyanide, heated to 60-80 ℃ dark, high temperature and then decomposed into Black copper oxide and water. 
 Purposes: as analytical reagent, but also for medicine, pesticide and so on. Can be used as a catalyst, mordant, pigment, feed additives, paper, dye lights. By the copper salt solution and alkali solution reaction. 
 Packaging and storage: lined with plastic bag, woven bag or hard cardboard drum. 25kg. Requires sealed packaging. Store in a cool dry place at room temperature.