Manganese Dioxide, Manganese Dioxide, Copper Sulfate
Molecular formula: CuSO4a5H2O
Blue three inclined crystal is crystallization. Soluble in water, ° C when water solubility for 25 23.05 g, soluble in ethanol diluted, insoluble in anhydrous alcohol, ether, liquid ammonia.
Used for producing other copper salt, also used as textile mordant, agricultural pesticide, fungicide, and used for the copper.