Registration Dossier
Registration Dossier
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EC number: 231-197-3 | CAS number: 7446-11-9
Endpoint summary
Administrative data
Description of key information
Sulphur trioxide reacts rapidly with water and even trace levels of atmospheric moisture to form sulphuric acid, a strong mineral acid that completely dissociates readily in water to hydrogen ions and sulphate ions (at environmentally relevant pH) and is totally miscible with water. The hydrogen ions, although not degraded as such due to their elemental nature, contribute to the pH of the local environment and are potentially mobile. The sulphate ions are incorporated into the various mineral species present in the environment. No further information is necessary.
No data on terrestrial toxicity are available and no testing is proposed. Waivers are proposed for all endpoints based on the lack of exposure, however endpoints may have to be re-considered in light of more detailed exposure modelling for all uses in the CSR.
Additional information
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.
