Copper sulphate (CuSO₄)
A compound of sulphur often used as a pesticide.
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Copper sulphate CuSO₄
Molar mass: 159.61 g/mol
Melting point: 150 °C
Density: 2.284 g/cm³
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.
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.
A compound ion produced when sulphuric acid releases a proton.
Sulphur dioxide emission is the main cause of acid rains. It is an intermediate product in the production of sulphuric acid.
One of the oxides of sulphur, forms sulphuric acid with water.
A colourless, viscous liquid, a highly corrosive, strong acid used in several industrial processes.
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The main sources of water pollution are industry, agriculture and urban areas.