Copper sulphate (CuSO₄)

Copper sulphate (CuSO₄)

A compound of sulphur often used as a pesticide.

Chemistry

Keywords

copper sulphate, blue vitriol, blue stone, ionic compound, ionic crystal lattice, cation, anion, crystal lattice, inorganic chemistry, chemistry

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Copper sulphate CuSO₄

Information

Molar mass: 159.61 g/mol

Melting point: 150 °C

Density: 2.284 g/cm³

Properties

Copper sulphate is the most common copper compound. At room temperature, it is a solid substance; the anhydrous form is a white powder, while hydrated copper sulphate is crystalline and blue. It dissolves well in water. Copper sulphate is toxic; a dose of 8-12 grams is lethal.

Occurrence and production

Copper sulphate is produced from copper oxide with hot sulphuric acid.

Uses

Copper sulphate is used for galvanisation. It is also used as a herbicide and fungicide, mainly to treat fungal infections on grapes and sunflowers. The anhydrous form can be used to find traces of water. It is a component of certain cosmetic products. In the food industry, it is used as a preservative (E519) and an anticaking agent as well as to increase the mineral content of food.

Space-filling

Narration

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Sulphate ion (SO₄²⁻)

A compound ion produced when sulphuric acid releases a proton.

Sulphur dioxide (SO₂)

Sulphur dioxide emission is the main cause of acid rains. It is an intermediate product in the production of sulphuric acid.

Sulphur trioxide (SO₃)

One of the oxides of sulphur, forms sulphuric acid with water.

Sulphuric acid (H₂SO₄)

A colourless, viscous liquid, a highly corrosive, strong acid used in several industrial processes.

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