H₂O₂ kev taw qhia
Hydrogen peroxide is a chemical compound with the formula H2O2. In its pure form, it is a very pale blue liquid, slightly more viscous than water. It is used as an oxidizer, bleaching agent, and antiseptic. Concentrated hydrogen peroxide, or "high-test peroxide", is a reactive oxygen species and has been used as a propellant in rocketry. Its chemistry is dominated by the O-O bond.
Hydrogen peroxide is the simplest peroxide (a compound with an oxygen–oxygen single bond). It slowly decomposes in the presence of light. Hydrogen peroxide is typically stored with a stabilizer in a weakly acidic solution in a dark colored bottle. Hydrogen peroxide is found in biological systems including the human body. Enzymes that use or decompose hydrogen peroxide are classified as peroxidases.
Ntshiab hydrogen peroxide yog cov kua tsis muaj xim uas yog miscible nrog dej. Nws yog feem ntau muab raws li 40% (w / w) tov tab sis kuj tau txais txog li ca 70% (w / w). Nws yog siv los ua tshuaj dawb.
Kev siv cov tshuaj hydrogen peroxide
Cov tshuaj bleaching ntawm hydrogen peroxide yog siv nyob rau hauv ntau lub lag luam. Tej zaum nws qhov kev paub zoo tshaj plaws niaj hnub siv yog nyob rau hauv cov khoom lag luam uas siv hauv kev ntxhua khaub ncaws, piv txwv li hauv qee hom VanishTM. Feem ntau ntawm hydrogen peroxide yog siv los ua sodium perborate thiab sodium percarbonate, uas yog siv los ua cov tshuaj dawb huv hauv cov kua thiab cov tshuaj detergents. Sodium perborate, NaBO3.4H2O, yog tsim los ntawm kev ntxiv hydrogen peroxide rau kev daws ntawm sodium metaborate thiab sodium hydroxide. Sodium percarbonate yog npaj los ntawm kev ntxiv hydrogen peroxide rau kev daws ntawm sodium carbonate.
- Hydrogenation of an anthroquinone
- Oxidation of the anthraquinol
- Extraction of hydrogen peroxide solution
- Purification and concentration of hydrogen peroxide
Cov theem tseem ceeb yog:
- Hydrogenationof an anthraquinone
- oxidationof the resulting anthraquinol
- Extractionof hydrogen peroxide solution
- purificationand concentration of hydrogen peroxide