Registration Dossier
Registration Dossier
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EC number: 219-854-2 | CAS number: 2551-62-4
Endpoint summary
Administrative data
Description of key information
Additional information
Sulphur hexafluoride is a colourless and odourless gas with a sublimation temperature of -63.8 °C (Evans and Mani in Kirk-Othmer Encyclopedia, 1994; Budavari (ed.) in Merck Index, 1989). Its relative density with respect to air has been calculated based on the Ideal Gas Law and is equal to 5. The vapour pressure of sulphur hexafluoride is 2367 kPa at 25 °C (Mears et al., 1969; Evans and Mani in Kirk-Othmer Encyclopedia, 1994). Its solubility in water is 0.031 g/L at 25 °C (Giardino et al., 1988) and its water-octanol partition coefficient (log Kow) is 1.68 (CRS database, confirmed by EPIWIN calculations). Suphur hexafluoride is non-flammable (CCOSH, 2006, United Nations, 2007; Lewis in Hawley's Condensed Chemical Dictionary, 2001). Based on the lack of groups associated with potential explosive properties, SF6 is not expected to be an explosive substance. Classification for flammability, oxidising and explosive properties is not warranted in accordance with EU Classification, Labelling and Packaging of Substances and Mixtures (CLP) Regulation (EC) No. 1272/2008.
The conductance of the studies on boiling point, particle size distribution, surface tension, flash point, auto flammability, oxidizing properties, stability in organic solvents and identity of decomposition products, dissociation constant and viscosity is not indicated in accordance with column 1 and 2 of REACH Annexes VII-X and/or section 1 and 2 of REACH Annex XI and/or Chapter R.7.A of REACH Guidance on information requirements and chemical safety assessment.
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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