Registration Dossier
Registration Dossier
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EC number: 231-959-5 | CAS number: 7782-50-5
Biodegradation in soil
Administrative data
Link to relevant study record(s)
Description of key information
Waiving of study:
All species constitute simple basic, inorganic structures, which are not biodegradable. In accordance with column 2 of REACH Annex IX, a simulation test on biodegradability in soil (required in section 9.2.1.3) does not need to be conducted as the test substance is of inorganic nature.
Due to its oxidising properties, chlorine reacts with organic material in soil and disappears very rapidly. The kinetic model of Vandepitte and Schowanek indicates that hypochlorite (form of chlorine in water) is eliminated within the first minutes of the test.
Key value for chemical safety assessment
Additional information
The high water solubility of chlorine can lead to a high mobility in soil, although chlorine as vapour or as aqueous solution is normally irreversibly bound to soil organics within the first few millimetres or centimetres of the soil surface.
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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