Technical yam ntxwv ntawm hydrogen peroxide
Apr 12, 2023
Ntshiab hydrogen peroxide yog lub teeb xiav viscous kua nrog lub melting point ntawm −0.43 degrees (31.23 degrees F) thiab lub boiling point ntawm 150.2 degrees (302.4 degrees F). Qhov ceev ntawm cov khoom ntawm qhov kub thiab txias yog 1.71 g / cm3, qhov ceev yuav txo nrog qhov kub thiab txias. Nws qib ntawm kev koom tes yog siab dua li ntawm H2O, yog li nws cov dielectric coefficient thiab boiling point yog siab dua cov dej. Ntshiab hydrogen peroxide yog qhov ruaj khov thiab, thaum rhuab mus rau 153 degrees Celsius (307 degrees Fahrenheit), hnyav decomposes rau hauv dej thiab oxygen.
Hydrogen peroxide yog tov nrog dej nyob rau hauv ib qho piv txwv, thiab cov tshuaj yog weakly acidic vim tsis muaj zog ionization.
H2O2 ↔ H plus HO2- Ka1=2,4 × 10-12
HO2- ↔ H+ plus O22- Ka2≈10-25
Cov khoom ntawm cov tshuaj tiv thaiv ntawm hydrogen peroxide nrog ntau tshaj sodium hydroxide yog Na2O2 thiab H2O. Thaum reacting nrog barium hydroxide, barium peroxide yog tsim.
