Copper sulphate
| Chemical Name | Copper sulphate |
| Chemical Formula | CuSO4 (anhydrous) CuSO4 5H2O (pentahydrate) |
| CAS# | 7758-99-8 (Pentahydrate) |
| IUPAC ID | Copper; Sulfate |
| EC Number | 231-298-2 |
| Appearance | gray-white (anhydrous) blue (pentahydrate) |
| Odour | Odourless |
| Flash Point | Non-flammable |
| Uses | The pentahydrate of this compound is used as a fungicide due to its ability to kill several fungi. It is used in Benedict’s solution and in Fehling’s solution, which is used in testing for reducing sugars. It is also used to test blood samples for diseases like anaemia. CuSO4 is mixed with KMnO4 (potassium permanganate) to form an oxidant which can be used in the conversion of 1o. It is also used as a dye fixative in the process of vegetable dyeing. |
Copper (II) sulfate, also known as copper sulphate, is an inorganic compound with the chemical formula CuSO4. It forms hydrates CuSO4•nH2O, where n can range from 1 to 7. The pentahydrate (n = 5) is the most common hydrate of copper (II) sulfate. Older names for the pentahydrate include blue vitriol, bluestone, vitriol of copper, and Roman vitriol. Copper sulfate can be prepared by treating metallic copper with heated and concentrated sulphuric acid, or by treating the oxides of copper with dilute sulphuric acid.