Registration Dossier
Registration Dossier
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EC number: 231-765-0 | CAS number: 7722-84-1
Density
Administrative data
Link to relevant study record(s)
Description of key information
Handbook data on the density of hydrogen peroxide are available. The density of pure hydrogen peroxide is extrapolated from densities at 25 °C of aqueous solutions exhibiting a range of hydrogen peroxide concentrations from 0 to 95% w/w. The density of pure hydrogen peroxide is 1.4425 g/cm3 at 25 °C.
Key value for chemical safety assessment
- Relative density at 20C:
- 1.442
Additional information
The relative density of hydrogen peroxide was determined at -20 °C using x-ray diffraction by Abrahams et al. (1951) and was found to be 1.7 g/cm3. Schumb et al. (1955) recalculated that number using Bragg's equation (using the Avogadro number as 6.023e23) and applying the uncertainties given in the original experiment and came up with a corrected number for the relative density of pure hydrogen peroxide of 1.71 g/cm3. The density of 100% w/w hydrogen peroxide at 25 °C was estimated as 1.4425 g/cm3 by extrapolation from densities of aqueous solutions exhibiting hydrogen peroxide concentrations ranging from 0 to 95% w/w at 25 °C (Schumb et al. 1955).
Information on Registered Substances comes from registration dossiers which have been assigned a registration number. The assignment of a registration number does however not guarantee that the information in the dossier is correct or that the dossier is compliant with Regulation (EC) No 1907/2006 (the REACH Regulation). This information has not been reviewed or verified by the Agency or any other authority. The content is subject to change without prior notice.
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