Overview
A mild antiseptic and bleaching agent; concentrated forms are powerful oxidizers used in rocket propellants.
- IUPAC Name
- hydrogen peroxide
- CAS Number
- 7722-84-1
- PubChem CID
- 784
- Molecular Formula
- H2O2
- Molar Mass
- 34.01 g/mol
- State at STP
- liquid
- Appearance
- Colorless liquid
Physical Properties
- Melting Point
- -0.43 °C
- Boiling Point
- 150.2 °C
- Density
- 1.45 g/cm³
- ΔH°f
- -187.8 kJ/mol
- ΔG°f
- -120.4 kJ/mol
Composition
| Element | Count | Mass % |
|---|---|---|
| H | 2 | 5.93% |
| O | 2 | 94.07% |
Reactions
Decomposition
2 H2O2 → 2 H2O + O2
decompositionSafety Information
GHS Hazard Codes
H271H302H314H318H335
GHS Pictograms
flame-over-circlecorrosionexclamation
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