Registration Dossier
Registration Dossier
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EC number: 913-635-1 | CAS number: -
Toxicity to soil microorganisms
Administrative data
Link to relevant study record(s)
Description of key information
There were no toxicity to soil microorganism studies available for the reaction mass of calcium chloride and sodium chloride or its constituents.
Key value for chemical safety assessment
Additional information
In accordance with section 1 of REACH Annex XI, the study does not need to be conducted as in water; calcium chloride and sodium chloride are dissociated into calcium, sodium and chloride ions and chloride ions will not adsorb on particulate matter. The calcium and sodium ions may bind to negatively charged inorganic particles (e.g. clay), may form stable salts with inorganic anions (e.g. sulphate and carbonate ions), or may bind to negatively charge soil organic matter. However, both sodium and calcium are naturally present in the environment. Therefore, toxicity toward terrestrial organisms is unlikely.
Since other terrestrial toxicity testing was available for calcium chloride and/or sodium chloride, since microorganisms were not particularly sensitive to sodium chloride in the aquatic environment, and since there is no information supporting the fact that calcium chloride should be more toxic than sodium chloride to terrestrial microorganisms, there is no need for further toxicity testing with microorganisms from the terrestrial environment. Therefore toxicity to soil microorganisms is waived for the reaction mass of calcium chloride and sodium chloride.
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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