Registration Dossier
Registration Dossier
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: 701-162-1 | CAS number: -
Water solubility
Administrative data
Link to relevant study record(s)
Description of key information
According to OECD105 study the water solubility of Penta-PSCA is 0.23 g/L at 20°C.
According to ISO 4311 the critical micelle concentration of Penta-PSCA is 0.23 ± 0.11 g/L at 20°C. The critical micelle concentration is the appropriate parameter describing water solubility of surface active materials.
Key value for chemical safety assessment
- Water solubility:
- 0.23 g/L
- at the temperature of:
- 20 °C
Additional information
The critical micelle concentration of the test item was determined from a plot of surface tension versus concentration of the test item in water in a well reported study according to national testing guideline DIN ISO 4311.
Surfactants show a complex solubility behaviour due to aggregation. The monomer concentration, and hence the thermodynamic activity, reaches a limiting value at the crirical micelle concentration. It remains approximately constant as the total concentration is further increased. For ecotoxicological models requiring a solubility value, the critical micelle concentration is therefore the appropriate parameter describing water solubility of surface active materials.
According to ISO 4311 the critical micelle concentration of Penta-PSCA is 0.23 ± 0.11 g/L at 20°C.
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.
