Specifications of HYDROGEN PEROXIDE

Pure hydrogen peroxide is a light blue viscous liquid with a melting point of − 0.43 ° C (31.23 ° F) and a boiling point of 150.2 ° C (302.4 ° F). The solid density at the freezing point is 1.71 g/cm3, and the density decreases with increasing temperature. Its association degree is greater than H2O, so its dielectric coefficient and boiling point are higher than water. Pure hydrogen peroxide is relatively stable, and when heated to 153 ° C (307 ° F), it violently decomposes into water and oxygen.

Hydrogen peroxide can be miscible with water in any ratio, and the solution is weakly acidic due to its ability to undergo weak ionization.

H2O2 ↔ H+ + HO2- Ka1=2.4 × 10-12

HO2- ↔ H+ + O22- Ka2≈10-25

The products of the reaction of hydrogen peroxide with excess sodium hydroxide are Na2O2 and H2O. When reacting with barium hydroxide, the product is barium peroxide.