PRODUCT Properties
| Melting point: | >365 °C(lit.) |
| Density | 2.92 |
| solubility | slightly soluble in H2O; soluble in acid solutions |
| form | Powder |
| color | white-yellow tetragonal crystals, crystalline;
hygroscopic |
| Water Solubility | Slightly soluble in water. Soluble in acids |
| Sensitive | Moisture Sensitive |
| Merck | 14,1689 |
| LogP | -0.425 (est) |
| CAS DataBase Reference | 1305-79-9(CAS DataBase Reference) |
| NIST Chemistry Reference | cyc-CaO2(1305-79-9) |
| EPA Substance Registry System | Calcium dioxide (1305-79-9) |
Description and Uses
Calcium peroxide is a grayish-white or yellowish odorless crystalline solid. Molecular weight=72.1;Freezing/Melting point=275℃ (decomposes). HazardIdentification (based on NFPA-704 M Rating System):Health 1, Flammability 0, Reactivity 1. Insoluble in water.
Stabilizer for rubber.
Safety
| Symbol(GHS) | ![]() ![]() GHS03,GHS05 |
| Signal word | Danger |
| Hazard statements | H272-H314-H318 |
| Precautionary statements | P210a-P221-P303+P361+P353-P305+P351+P338-P405-P501a |
| Hazard Codes | O,Xi,C |
| Risk Statements | 9-36/37/38-34 |
| Safety Statements | 17-26-451-36/37/39 |
| RIDADR | UN 1457 5.1/PG 2 |
| WGK Germany | 1 |
| TSCA | Yes |
| HazardClass | 5.1 |
| PackingGroup | II |
| HS Code | 28259019 |
| Hazardous Substances Data | 1305-79-9(Hazardous Substances Data) |







