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- Molecular formula: H2O2
- Molar mass: 34.015
- CAS Registry Number: 7722-84-1
- Appearance: Peroxide, Quant® Test Strips; Peroxide, Quant® Test Strips; Colorless liquid with a slightly sharp odor. [Note: The pure compound is a crystalline solid below 12F. Often used in an aqueous solution.]; colourless liquid
- Melting point: -40 °C
- Boiling point: 126 °C
- Solubility: Water, 1e+006 mg/L (25 deg C)
- Safety sheet: Not available
- Spectra: Check on SDBS. Add Spectra (Help).
Hydrogen peroxide (H2O2) is the simplest peroxide (a compound with an oxygen-oxygen single bond). It is also a strong oxidizer. Hydrogen peroxide is a clear liquid, slightly more viscous than water. In dilute solution, it appears colorless. Due to its oxidizing properties, hydrogen peroxide is often used as a bleach or cleaning agent. The oxidizing capacity of hydrogen peroxide is so strong that it is considered a highly reactive oxygen species. Concentrated hydrogen peroxide, or 'high-test peroxide', is therefore used as a propellant in rocketry. Organisms also naturally produce hydrogen peroxide as a by-product of oxidative metabolism. Consequently, nearly all living things (specifically, all obligate and facultative aerobes) possess enzymes known as catalase peroxidases, which harmlessly and catalytically decompose low concentrations of hydrogen peroxide to water and oxygen.
Hydrogen peroxide (IUPAC Name); dihydrogen peroxide; Hioxyl; hydrogenperoxide; Lensan A; Mirasept; Oxysept; Pegasyl
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