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EC number: 233-162-8
CAS number: 10049-04-4
This publication cites, as a secondary source, some physico-chemical properties for the substance chlorine dioxide, including a density for the gas state to air of 2.3. Details on the composition of the substance are not specified.
This publication cites, as a secondary source, some physico-chemical properties for the substance chlorine dioxide, including densities of the liquid form, from 1.62 at the b.p. to 1.765 at the m.p.. However, details on composition are not specified.
The peer-reviewed CRC Handbook of Chemistry and Physics provides a density of 2.757 g/L (at 25°C) for the substance Chlorine dioxide. Details on the composition of the substance not specified.
The peer reviewed ATSDR profile provides density values of 1.640 and 1.614 g/mL, respectively at 0 and 10°C, for the substance Chlorine dioxide, as liquid. However, details on the composition of the substance are not provided.
The ICSC provides a relative density of 1.6 for the substance Chlorine dioxide, as liquid at 0°C, and a vapour density of 2.3, compared to air. Details on composition of the substance not specified.
The gaseous chlorine dioxide can collect in low-lying areas.
The Simpson's book, dedicated to chlorine dioxide, provides a density of 2.4 as a gas, and 1.64 as a liquid at 0°C but details on composition of the substance are not specified.
The HSDB database, the international CICAD review, the EPA IRIS review and the OECD SIDS report provide a peer-reviewed relative density of 1.642 for the substance Chlorine dioxide, under its liquid form at 0°C, cited from the Merck Index handbook, and a vapour density of 2.34, compared to air. However, atmospheric pressure and details on composition of the substance are not specified.
Solution of chlorine dioxine generated in-situ at less than 2% in water (as registered): d = 1 (close to the relative density of water)
The substance as registered is always generated in situ as a gas dissolved in water, with concentration not exceeding 2%. No study was conducted to determine the relative density of the substance considering the relative density of the substance as very close to that of pure water, i.e. d=1. Therefore, a further assessment of the relative density is scientifically unjustified and this data is considered as key data for CSA purpose.
Note that a theoretical relative density of the solution was calculated to be 1.008, based on the data compiled from secondary sources on the pure substance (1.64 g/cm3 for pure ClO2liq) and considering a 20 g/L solution.
Other information : Several literature sources provide consistent data for the pure chlorine dioxide: a consensus value of 1.64 for Chlorine dioxide liquid at 0°C, and a mean value of 2.35 for the gas, can be retained.
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.Reproduction or further distribution of this information may be subject to copyright protection. Use of the information without obtaining the permission from the owner(s) of the respective information might violate the rights of the owner.
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