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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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: 209-097-6 | CAS number: 555-43-1
Water solubility
Administrative data
Link to relevant study record(s)
Description of key information
< 1 mg/L at 20°C
Key value for chemical safety assessment
Additional information
The water solubility of the substance glycerol tristearate (CAS 555-43-1) was determined according to national standard ASTM E 1148 - 02 with total organic carbon (TOC) method. The determined water solubility of the substance of 3 mg/L (application of approximately 230 mg/L corresponds with 1.3 % and application of approximately 1050 mg/L corresponds with 0.3% dissolved substance, respectively) seems to be overestimated for the pure substance. While the TOC method determines all dissolved species, this overestimated water solubility could be caused by free glycerol or fatty acid components. For the extreme value of 0.3% (minimal dissolved species) of 230 mg/L (minimal concentration) the calculated water solubility would be 0.65 mg/L.
Additionally, the measured water solubility of the most soluble and most similar substance of the category (C7 FA triester, CAS 620-67-7) is below 0.05 mg/L determined with column elution method. Since the longer FA triester component (C18) should be lower soluble than the shorter C7 FA triester component, therefore the water solubility of the substance will be deduced to be < 1 mg/L.
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.
