Registration Dossier
Registration Dossier
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EC number: 910-697-1 | CAS number: -
Biodegradation in soil
Administrative data
Link to relevant study record(s)
Description of key information
As stated in ECHA guidance R7b (p. 204 v. June 2017), even though biological processes may accelerate the transformation of some simple inorganic substances, they may not normally degrade biotically.
Key value for chemical safety assessment
Additional information
The substance is a reaction mass of calcium fluoride, calcium sulfate and calcium carbonate.
The substance is composed of inorganic compounds and therefore it will not be biodegraded. Once released into the environment, calcium fluoride will ionise to a limited extent to form calcium and fluoride ions which will combine with various minerals to form a variety of other fluoride compounds.Calcium sulfate and calcium carbonate are inorganic substances and do not undergo biodegradation. They all will be degraded in the environment by means other than biodegradation. The ions will dissociate in the environment;
calcium will be assimilated by species in the water and is necessary to maintain a good chemical balance in soils, water and plants, carbonate and sulfur ions will become part of the carbon cycle and sulfure cycle, respectively.
Therefore testing soil simulation testing on reaction mass of calcium fluoride, calcium sulfate and calcium carbonate is considered 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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