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Physical Properties and Applications of Copper Sulfate

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Copper?sulfate?(chemical?formula:?CuSO4),?which?is?a?white?or?off-white?powder. Its aqueous solution?is?weakly acidic and blue. Copper sulfate pentahydrate (CuSO. 5H2) will be produced when it is crys


Copper sulfate


Physical properties

Copper sulfate (chemical formula: CuSO4), which is a white or off-white powder. Its aqueous solution is weakly acidic and blue. Copper sulfate pentahydrate (CuSO. 5H2) will be produced when it is crystallized from the aqueous solution, which is blue in appearance.

Anhydrous copper sulfate has a density of 3.603 g / cm3; and a solubility in water at 25° C of 23.05 g / 100 g water, which is insoluble in ethanol and ether and strong in water absorption. Blue copper sulfate pentahydrate will be produced after water absorption as a result of reaction.


Anhydrous copper sulfate

Copper sulfate is a heavy metal salt, which is toxic.The lethal dose for an adult is 0.9 g / kg. If one eats it by mistake, he/she should eat protein-rich food such as milk, egg white and so on, or EDTA calcium sodium salt immediately to detox the body.



Preparation of Bordeaux mixture

Copper sulfate is an important raw material for the preparation of other copper compounds. For example, Pesticide bordeaux solutions can be obtained by mixing it with lime milk, which will be used as an insecticide. Copper sulfate is also an electrolyte for electrolytic refining of copper.

Biuret test for proteins

Anhydrous copper sulfate has very strong water absorption, which will become blue crystal again after absorbing 95% ethanol or water-containing organic matter.

Other applications

Copper sulfate is mainly applied in the manufacture of other copper salts such as cuprous chloride, copper pyrophosphate, cuprous oxide, cuprous acid, copper carbonate and so on in inorganic industries; production of copper-containing monoazo dyes such as reactive brilliant blue, reactive violet and so on in the dyestuffs and pigments industries; the synthesis of perfumes and dye intermediates as a catalyst in the organic industry, and whose  cresol methacrylic acid inhibitor is used in production of antifouling paints for ship bottoms as a bactericide in the coating industry; whose master salt of all-bright acidic cop plating and the additive of copper ions are use as mordants in electroplate industry;and oxygen aids for fine dyed fabrics in the printing and dyeing industry. As a fungicide in agriculture. Copper sulfate is an inorganic compound, which can be used as a therapeutic drug when livestock is in short of copper,an anti-tapeworm medicine for cattle and sheep, and an emetic medicine for pigs and dogs.

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