The copper sulfate solution is a blue solution. Due to the hydrated copper ion, it appears blue, so anhydrous copper sulfate is often used to test the presence of water in the laboratory. In the actual production and life, copper sulfate is often used to refine copper, and mixed with slaked lime to make pesticide Bordeaux mixture.
Copper sulfate is suitable for some salt feed processing, can be made into copper chloride, copper carbonate, cuprous chloride and so on. Can also be used in textile dyes above, copper pyrophosphate, cuprous oxide, copper acetate in the pigment industry for the manufacture of copper pigments, can produce bright blue, purple and so on, cutting activity is very high.
Analytical reagent
Copper sulfate is required for several chemical analyses. It is used to test reducing sugars in Ferien’s reagents and Ban’s reagents. In the reaction, the divalent copper ions are reduced to a monovalent insoluble red precipitated cuprous oxide. Copper sulfate can also be used in biuret reagents to detect proteins.
Copper sulphate can be used to test for anemia. The blood sample is dropped into the copper sulfate solution. If the blood sample contains enough hemoglobin, the blood sample will quickly sink; if the hemoglobin content is insufficient, the blood sample will be suspended in the solution.
The copper sulfate in the flame reaction is blue-green and much bluer than the color of the strontium ion.
Organic Synthesis
Copper sulfate in organic synthesis, can play a catalytic reaction effect; It reacts with potassium permanganate to form oxides used in alcohols
The transformation. In the industrial field, it can be used as a catalyst for spices and dyes. In addition, in the system of methyl methacrylate, can play a polymerization inhibitor around.
Medicinal
Copper sulphate can also be used as an emetic, and it is now considered too toxic to use. However, it is still an antidote listed by the World Health Organization ATC Code _ (V03).
agriculture
Copper sulphate can be used to kill fungi.Dilute solutions are used for sterilization in aquariums and for removing snails. Since copper ions are toxic to fish, the amount must be strictly controlled. Most fungi can be killed with very low concentrations of copper sulfate, and E. coli can also be controlled.
Chemistry education
Copper sulphate is often used to demonstrate an exothermic reaction, and the magnesium strip is inserted into the copper sulphate solution during the demonstration.