Peroxide of hydrogen found broad application in life and medicine. as disinfecting and antiseptic and also dye. In the course of both receiving, and use she demands observance of certain rules.
Instruction
1. Peroxide of hydrogen can be used for treatment not only mechanical injuries of skin - small wounds and cuts. In the past, 3 percent solution of this substance was used for treatment of pneumonia, various viral and skin and venereologic diseases. Before discovery of penicillin peroxide was entered intravenously to people with diseases of pulmonary and bronchial tubes. Today the expediency of such use of peroxide of hydrogen is challenged. Some experts agree that this practice brought positive results, and others claim that hydrogen peroxide is not suitable for intake. However, its external application continues still.
2. To make 3 percent solution of peroxide of hydrogen, in the beginning receive the concentrated its solution. The easiest way of its receiving in laboratories - use of impact of oxides of metals on the diluted sulfuric acid. So, for example, barium oxide in cold conditions, connecting to sulfuric acid, forms peroxide of hydrogen and salt - barium sulfate: BaO2+H2SO4=H2O2+BaSO4 In the industry receive sulfuric acid by electrolysis of sulfuric acid which hydrolysis of nadserny acid follows: 2H2SO4=H2S2O8+2H+ + 2e-, H2S2O8+2H2O=2H2SO4+H2O2 Also receive hydrogen peroxide oxidation of isopropyl alcohol. It is formed also in the nature - by oxidation of various substances by oxygen. Besides, in small concentration it is found also in animal cages.
3. After the concentrated hydrogen peroxide solution is received, prepare from it 3 percent solution. For this purpose take the enameled bowl, pour in it water of temperatuy about 50 degrees, then add hydrogen peroxide in the corresponding quantity. Hydrogen peroxide, besides the medical purpose, is used also in the industry. For example, it is applied to bleaching of fabrics and paper. Also it is good disinfectant in the food industry. Hydrogen peroxide - the decolouring means therefore it found broad application in cosmetology.