HYDROGEN PEROXIDE - EVONIC BELGIUM
CAS number: 7722-84-1
EC Number: 231-765-0
Freezing point: -0.43 ° C
Boiling point: 150.2 ° C
Molar mass: 34,0147 g / mol
Density: 1.135 g / cm 3 (20 ° C, 30%) 1.450 g / cm 3 (20 ° C, pure)
Acidity (pKa): 11.75
Refractive index (nD): 1,4061
Viscosity: 1.245 cP (20 ° C)
Dipole moment: 2.26 D
H2O2 is a colorless and odorless liquid chemical formula, soluble in water and alcohol, depending on the environment, reducing and oxidizing properties, chemically unstable, dense liquid in the form of a chemical. It can easily decompose to give water and oxygen. H2O2 solutions in the range of 70-90% can show explosive properties. In cases where the metal impurity exhibits catalytic effect, the rate of deterioration of this substance is increasing.
Production and Reactions
Hydrogen peroxide is found in nature in snow and rain. In old times, barium oxide was obtained from the treatment of barium peroxide with sulphate acid obtained by heating the air to 500 ° C in the air.
BaO2 H2SO 4 - 4 BaSO 4 H2O 2
Occurs around the cathode during the electrolysis of water. Ethyl is obtained from the autoxidation of the anthraquinone. When the concentrated sulfate acid is electrolyzed, the peroxydisulphate acid is obtained. Hydrogen peroxide can be obtained from the reaction of the substance formed as a secondary reaction with water.
H2S2O 8 2H2O - - 2H2SO4 H2O2
3% solution is used as oxygenated water, 70% solution is used for oxidizing organic materials and inorganic ions.The solution of 30% is used in this sector under the name of perhidrol.
Concentrations of 30-50% are used to bleach cotton fabrics in the textile industry.
A 3-4% solution is used as a disinfectant, as a disinfectant.
It can be used as a whitener in foodstuffs.
3-6% solution is used as an additive in hair dyes in the cosmetic sector and for hair dyeing.
In water treatment systems, Trihalomethanes and haloacetic acids are used, while water treatment is used to reduce hydrogen peroxide, odor reduction, water taste change, or increase or decrease the ozone content.
Hydroponically, in some farming irrigation solutions, hydrogen peroxide is used as a weak solution.
It is used to create organic peroxide explosives in the industry.