How to prepare a solution of hydrogen peroxide

Peroxide of hydrogen can be used not only to treat the mechanical damage of the skin - small wounds and cuts. Last of a 3% solution of this substance used for the treatment of pneumonia, and various viral, dermatological and venereal diseases. Before the discovery of penicillin peroxide was administered intravenously to people with diseases of the lungs and bronchi.In our days the feasibility of such an application of peroxide of hydrogen disputed. Some experts agree that this practice has yielded positive results, while others claim that the peroxide of hydrogen for oral administration is not suitable. However, its external application is still ongoing.

In order to make a 3% solution of peroxide of hydrogen, initially will receive its concentrated solution. The easiest way to get it in the lab - use impacts of metal oxides in dilute sulphuric acid. So, for example, barium oxide in cold conditions, connecting with sulfuric acid, forms peroxide of hydrogen and salt - barium sulfate: BaO2+H2SO4=H2O2+BaSO4 In the industry sulphuric acid is obtained by electrolysis of sulfuric acid, followed by hydrolysis nadkarni acid: 2H2SO4=H2S2O8+2H+ + 2e-,H2S2O8+2H2O=2H2SO4+H2O2 Also peroxide of hydrogen is obtained by oxidation of isopropyl alcohol. It is formed in nature by oxidation of various substances with oxygen. In addition, small concentrations of it found in animal cells.

After the resulting concentrated solution of peroxide of hydrogen, prepare it a 3% solution. To do this, take an enamel bowl, pour water into it temperaturoi about 50 degrees, then add the peroxide of hydrogen in an appropriate amount.Peroxide of hydrogen, in addition to its medical purpose, is also used in industry. For example, it is used for bleaching fabrics and paper. Also, it is a good disinfectant in the food industry. Peroxide of hydrogen - decolorizing agent, and therefore it has found wide application in cosmetology.