copper sulfate

    Copper sulfate is an inorganic compound with the chemical formula CuSO₄, and anhydrous copper sulfate is a white or off-white powder.

    Copper sulfate is both a fertilizer and a commonly used fungicide. Bordeaux mixture, copper soap solution and cuproammonium preparation are prepared from copper sulfate, lime milk, soap and ammonium bicarbonate.

physical properties

Anhydrous copper sulfate:

Appearance and properties: Anhydrous copper sulfate is a gray-white powder, which easily absorbs water and turns blue-green copper sulfate pentahydrate.

Melting point: 560°C.

Density: 3.606 g/cm3 (25ºC)

Vapor Pressure: 7.3mm Hg (25ºC)

Solubility: soluble in water and methanol. Insoluble in ethanol.

Copper sulfate pentahydrate:

The physical and chemical properties of copper sulfate pentahydrate are transparent dark blue crystals or powders, the solubility in water at 0 °C is 316 g/L, insoluble in ethanol, and almost insoluble in most other organic solvents. It is gem green in glycerol, slowly weathered in the air, loses two molecules of crystal water (30°C) when heated, and loses water to white hydrate (CuS04·H20) at 110°C. When it contains impurities for a long time, it is yellow or green and has no odor. This product is highly corrosive to iron. Copper sulfate is both a fertilizer and a commonly used fungicide. Bordeaux mixture, copper soap solution and cuproammonium preparation are prepared from copper sulfate, quicklime, soap and ammonium bicarbonate.