Registration Dossier
Registration Dossier
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EC number: 232-094-6 | CAS number: 7786-30-3
Sediment toxicity
Administrative data
Link to relevant study record(s)
Description of key information
Key value for chemical safety assessment
Additional information
According to Section 9.5.1 of REACH Regulation 1907/2006, a long-term toxicity test to sediment organisms is required. However, such a study is not justified for Magnesium Chloride for the following reasons:
- Magnesium and chloride ions are ubiquitous in the environment and are found naturally in soil, water and sediment (Mg in soils/sediments are at a 50th percentile level in the range of 0.9-1.2 %). Magnesium will be assimilated by species residing in the sediment and is necessary to maintain a good chemical balance in soils, water and sediment. The chloride will become part of the chloride cycle and/or be assimilated by microorganisms and other species that require chloride as an essential substance in their biological systems/ processes.
- Natural magnesium minerals are quite soluble, and so differences in bioavailability between natural magnesium sources and anthropogenic added magnesium are not expected.
Due to the natural occurrence of Magnesium chloride in the environment, it is expected that Magnesium chloride would not be toxic to sediment organisms and hence, long-term toxicity tests appear to be scientifically unjustified.
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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