Copper II sulphate water 5 on watch glass

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SS22651889

Copper II sulfate pentahydrate large crystals; CuSO4¬?5H2O; 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 and¬Benedict's solutions¬to test for¬reducing sugars. In a¬Biuret reagent¬it 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.

MARTYN F. CHILLMAID / Science Source

SS2CT67213_20200609