- Formula: H2O2
- Molecular weight: 34.0147
- IUPAC Standard InChI:
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- IUPAC Standard InChIKey: MHAJPDPJQMAIIY-UHFFFAOYSA-N
- CAS Registry Number: 7722-84-1
- Chemical structure:
This structure is also available as a 2d Mol file
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Phase change data
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Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Data compiled as indicated in comments:
TRC - Thermodynamics Research Center, NIST Boulder Laboratories, Chris Muzny, director
AC - William E. Acree, Jr., James S. Chickos
|Tfus||272.26||K||N/A||Cuthbertson, Matheson, et al., 1928||Uncertainty assigned by TRC = 0.3 K; TRC|
|Tc||728.||K||N/A||Nikitin, Pavlov, et al., 1995||Uncertainty assigned by TRC = 15. K; by extrapolation of obs. Tc for aqueous solns, with pulse heating method to pure H2O2; TRC|
|Pc||220.00||bar||N/A||Nikitin, Pavlov, et al., 1995||Uncertainty assigned by TRC = 20.00 bar; by extrapolation of obs. Pc for aqueous solns. with pulse heating method to pure H2O2; TRC|
Enthalpy of vaporization
|vapH (kJ/mol)||Temperature (K)||Reference||Comment|
|48.5||320.||Maass and Hiebert, 1924||Based on data from 277. - 363. K.; AC|
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Cuthbertson, Matheson, et al., 1928
Cuthbertson, A.C.; Matheson, G.L.; Maass, O., The Freezing Point and Density of Pure Hydrogen Peroxide, J. Am. Chem. Soc., 1928, 50, 1120. [all data]
Nikitin, Pavlov, et al., 1995
Nikitin, E.D.; Pavlov, P.A.; Popov, A.P.; Nikitina, H.E., Critical properties of hydrogen peroxide determined from direct measurements, J. Chem. Thermodyn., 1995, 27, 945-52. [all data]
Maass and Hiebert, 1924
Maass, O.; Hiebert, P.G., THE PROPERTIES OF PURE HYDROGEN PEROXIDE. V. VAPOR PRESSURE, J. Am. Chem. Soc., 1924, 46, 12, 2693-2700, https://doi.org/10.1021/ja01677a012 . [all data]
Go To: Top, Phase change data, References
- Symbols used in this document:
Pc Critical pressure Tc Critical temperature Tfus Fusion (melting) point vapH Enthalpy of vaporization
- Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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