Registration Dossier
Registration Dossier
Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.
The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.
Use of this information is subject to copyright laws and may require the permission of the owner of the information, as described in the ECHA Legal Notice.
EC number: 281-192-5 | CAS number: 83897-84-1
Water solubility
Administrative data
Link to relevant study record(s)
Description of key information
The solubility characteristics of the test material were demonstrated to be dependent on the initial loading rate of the test material.
Key value for chemical safety assessment
Additional information
The nominal loading rate of 1.0 g/l confirmed that the test material was essentially insoluble in water with only 5.1 mg/l of calcium, 7.1 mg/l of magnesium, less than 0.1 mg/l of silicon and less than 0.01 mg/l of aluminium, iron and manganese being detected in solution.
However, the solubility characteristics of the test material were then demonstrated to be dependent on the initial loading rate of the test material. Solubility of silicon, aluminium, iron and manganese remained negligible, but the calcium solubility was demonstrated to increase with an increased loading rate from the initial concentration of 5.1 mg/l up to 26.8 mg/l. Such dissolution was observed to be detrimental to the solubility of the previously dissolved magnesium compound(s), and the total dissolved magnesium concentration decreased from 7.1 mg/l to 2.7 mg/l. Due to this variability in the resulting calcium and magnesium concentrations with loading rate, no single loading rate could be identified as representative of five times saturation concentration in order to allow completion of the definitive test in accordance with the EC Method A6 guideline. The pH was determined as ≤10.6.
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.
