The molecular formula Du is Cu2 (OH) 3CL and the relative molecular weight is 213.57. It is a dark green crystalline powder, insoluble in water and organic solvents, soluble in ammonia and acid, not easy to deliquescence, weak oxidation, very stable in the air. The content of basic copper chloride does not change with seasons and climate, which indicates that the quality stability of basic copper chloride is excellent and it is easier to preserve.
Cupric chloride, inorganic compound, chemical formula CuCl2. It is green to blue powder or rhombic double cone crystal. It can be decomposed in wet air and weathered in dry air. Loss of moisture at 70 to 200 ℃. It is easily soluble in water, ethanol and methanol, slightly soluble in acetone and ethyl acetate, slightly soluble in ether. Its aqueous solution is acidic to litmus. The pH of 0.2mol/l aqueous solution is 3.6. The relative density was 2.54. Crystal water is lost at 100 ℃.