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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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: 231-165-9 | CAS number: 7440-57-5
Water solubility
Administrative data
Link to relevant study record(s)
Description of key information
Gold powder showed no dissolution above the Limit of Detection in either the 24 hour screening transformation dissolution study (LOD: 0.1 µg/L) or in the full 28 day test (LOD: 0.3 µg/L).
Key value for chemical safety assessment
Additional information
GLP-compliant transformation dissolution tests were conducted according to OECD guideline 29 (ECTX 2012a, ECTX 2012b). In the 24 hour screening test a loading rate of 100 mg/L was used and the test was conducted at pH 6 and pH 8. In the full study loading rates of 10 and 100 mg/L (7 days duration) and 1 mg/L (28 days duration) were used. The test was conducted at pH 6, which is taken to represent the worst case as more acidic conditions generally tend to favour metal solubility. Gold powder showed no dissolution above the limit of detection in either test.
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.
