H₂O₂H2O234.0147 g·mol⁻¹
Molar mass34.015 g·mol⁻¹calc 34.014 • Atomic weights: CIAAW 2021 (conventional atomic weights)
FormulaH₂O₂H2O2
Classmolecular • covalentliquid
| Element | Count | Mass (g/mol) | Mass % |
|---|---|---|---|
| H | 2 | 2.016 | 5.93% |
| O | 2 | 31.998 | 94.07% |
Physical properties
- State at STP
- liquid
- Density
- 1.45 g·cm⁻³ (liquid (100%) at 20 °C, 1 atm)
- Melting point
- 272.5 K (1 atm)
- Boiling point
- 423.15 K (1 atm)
Structure & bonding
H-O-O-H with dihedral ~111 deg. Oxidizing agent; decomposes to H2O + O2.
Occurrence & preparation
Anthraquinone process industrially. Dilute solutions commercial.
Uses
- Disinfectant
- Bleaching
Safety
Oxidizer — causes burns; concentrated >30% is hazardous.
Consult current SDS. — consult current SDS before handling.