Hydrogen peroxide formula H? O ?, commonly known as hydrogen peroxide. Colorless transparent liquid, is a strong oxidant, the solution suitable for medical wound disinfection and environmental disinfection and sterilization of food. In general, it breaks down into water and oxygen, but extremely slow rate of decomposition of hydrogen peroxide to accelerate the reaction rate of the catalyst solution is added - manganese dioxide or short-wave rays. Chinese Synonyms: hydrogen peroxide; hydroperoxide; dihydrogen dioxide Synonyms: perhydrol; perdrogen; peroxide; uperoxol toxic substances data: 7722-84-1 (Hazardous Substances Data) professional standards: TWA1.4 mg / cubic meter; STEL4 .2 mg / cubic meter junior laboratory preparation of oxygen approach: reactants: hydrogen peroxide conditions: manganese dioxide - Catalyst (accelerated rate of decomposition of hydrogen peroxide) product: oxygen + (the + read "and" do not read the "plus") water experiment Note 1. KMnO4 solution of hydrogen peroxide when heated and placed procurement shall cover the surface of the dish. 2. KMnO4 as an oxidizing agent is usually carried out in an acidic solution H2SO4, HNO3 or HCl can not be used to control the acidity. If it is found during titration brown turbid, which is caused by lack of acidity, should be added immediately dilute H2SO4 Zhengzhou where to sell hydrogen peroxide, as has reached the end, the experiment should be redone. 3. Calibration KMnO4 use hydrogen peroxide concentration in the solution, heating the reaction can be accelerated, but not heat to boiling, because overheating can cause acid decomposition, suitable temperature is 75 ℃ ~ 85 ℃. Temperature at the time to the end of the titration solution should not be less than 60 ℃. 4. Start the titration reaction is slow, so slow dropping, the solution to be produced after the Mn2 +, Mn2 + due to the catalytic reaction, the reaction speed, then the titration rate may accelerate; but be careful not to be too fast, More should be carefully slowly dropped near the end. The role of hydrogen peroxide _ _ Zhengzhou Jinshui Ronda chemical hydrogen peroxide by Ronda Chemical Products Co., Ltd., Zhengzhou. Zhengzhou Longda Chemical Products Co., Ltd. (www.longdahuagong.com/) is located in Hi-tech District, Zhengzhou City, Henan Province Chemical Road 99 (Chemical Road and Rita Road intersection 100 meters south west). Scraps and development in the wave of market economy, the current Zhengzhou Longda Chemical has a high reputation in inorganic acids, enjoy a good reputation. Zhengzhou Longda Chemical acquired the whole network business alliance certification, marking our service and management level has reached a new height. Zhengzhou Longda Chemical staff willing to work with all people of insight and common development, for a better future.