Production, storage and transportation: 1. Preparation of copper sulfate The copper powder is calcined at 600 to 700 ° C, oxidized to copper oxide, and then decomposed by sulfuric acid, clarified to remove insoluble impurities, cooled, crystallized, filtered, and dried to obtain a copper sulfate finished product. Its reaction formula is as follows. 2. Electrolyte […]

1. When weigh the crude copper sulfate crystal, we should first grind it in the mortar, otherwise it will be difficult and time consuming to weigh and dissolve. 2. Stir with a glass rod to dissolve when heated to dissolve, but the glass rod should not touch the wall of the beaker, otherwise the beaker

Add 80 ml of steel-containing waste liquid to a 100 ml beaker, put a few pieces of iron (such as iron sheets with more rust, should be cleaned with sandpaper first) and put them in a solution and heat them on low heat. When the N-reaction is carried out more completely, the solution is poured