Description

Specifications of Copper Sulphate Pentahydrate.

Parameters ********- Specification
Appearance ********- Blue Colored Powder & Crystals
Copper as Cu % ****- *4.*0 Min
Nickel as Ni % ****- 0.*3 Max
Iron as Fe % ******- 0.*0 Max
Lead as Pb % ******- 0.**2 Max
Cadmium as Cd % ***- 0.**1 Max
Arsenic as As % ***- 0.***5 Max
Mercury as Hg % ***- 0.***5 Max
Insoluble matter % - 0.*2 Max in water
pH in 5% Solution *- 3.*0 Min

Specifications of Copper Sulphate Anhydrous.

Parameters ********- Specification
Appearance ********- Blue Colored Powder & Crystals
Copper as Cu % ****- *8.2 Min
Nickel as Ni % ****- 0.*5 Max
Iron as Fe % ******- 0.*0 Max
Lead as Pb % ******- 0.**3 Max
Cadmium as Cd % ***- 0.**1 Max
Arsenic as As % ***- 0.***7 Max
Mercury as Hg % ***- 0.***7 Max
Insoluble matter % - 0.*3 Max in water

Copper( II) sulfate, also known as cupric sulfate or copper sulphate, is the chemical compound with the chemical formula CuSO4. This salt exists as a series of compounds that differ in their degree of hydration. The anhydrous form is a pale green or gray-white powder, whereas the pentahydrate (CuSO4·5H2O), the most commonly encountered salt, is bright blue. Copper sulfate exothermically dissolves in water to give the aquo complex [Cu(H2O)6]2+, which has octahedral molecular geometry and is paramagnetic. Other names for copper(II) sulfate are "blue vitriol" and "bluestone"

Copper (II) sulfate pentahydrate decomposes before melting at **0 °C (**2 °F), losing two water molecules at *3 °C (**5 °F), followed by two more at **9 °C (**8 °F) and the final water molecule at **0 °C **2 °F)

Uses

As a herbicide, fungicide and pesticide

Copper sulfate pentahydrate is a fungicide. However, some fungi are capable of adapting to elevated levels of copper ions. Mixed with lime it is called Bordeaux mixture and used to control fungus on grapes, melons, and other berries. Another application is Cheshunt compound a mixture of copper sulfate and ammonium carbonate used in horticulture to prevent damping off in seedlings.

A dilute solution of copper sulfate is used to treat aquarium fish for parasitic infections, and is also used to remove snails from aquariums. Copper ions are highly toxic to fish, so care must be taken with the dosage. Most species of algae can be controlled with very low concentrations of copper sulfate. Copper sulfate inhibits growth of bacteria such as Escherichia coli. Copper Sulphate is also used as a wood preservative apart from its use in electroplating.

Copper sulfate is employed in organic synthesis. Copper sulfate is also used to etch zinc plates for intaglio printmaking. Copper sulfate can also be used as a mordant in vegetable dyeing.