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Copper II sulphate with hazard pictograms
Copper II sulphate water 5 on watch glass. Copper II sulfate pentahydrate large crystals; CuSO45H2O; Molar mass 249.685 g/mol. Also known as copper sulphate, blue vitriol, bluestone, vitriol of copper, Roman vitriol, It is an inorganic compound, exothermic as it dissolves in water. It is used as a fungicide. in the laboratory it is a component of Fehling's andBenedict's solutionsto test forreducing sugars. In aBiuret reagentit is used to test for proteins. Heating will convert it to its grey/white anhydrous state and adding water to anhydrous powder will convert it back to pentahydrate. There are several methods to grow large copper sulphate crystals.
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