1. CAS No.：7787-70-4

2. Molecular Formula：BrCu

3. Molecular Weight：143.45

4. Appearance：White powder or crystal becomes blue or dark blue after sunshine. 

5. Solubility：Slightly soluble in cold water.It is decomposed in hot water. Soluble in hydrochloric acid and ammonium hydroxide.It is almost insoluble in acetone and concentrated sulfuric acid. 

6. Sensitivity：

Air and light sensitive.It becomes oxidized slowly in atmosphere and color degraded and irritant. 

7. Application：

It is used in color photography, as chemical reagent, catalyst in organic synthesis, reducing agent in pigment and dyestuff. It is also used in electric cell, electroplating and pharmaceuticals. 

8. Storage：

Kept in containers tightly closed.Stored in a dark,cool and well-ventilated warehouse. Kept at room temperature (below 35°C). Incompatible with strong oxidizing agents and alkali metals