Registration Dossier
Registration Dossier
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EC number: 306-238-4 | CAS number: 96690-44-7
Water solubility
Administrative data
Link to relevant study record(s)
- Endpoint:
- water solubility
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- From October 21, 2016 to July 21, 2017
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- Reason / purpose for cross-reference:
- reference to same study
- Qualifier:
- according to guideline
- Guideline:
- other: OECD 115
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- other: UNE 55-50
- Deviations:
- no
- GLP compliance:
- not specified
- Type of method:
- other: Tensiometer Kruss Standard plate method
- Key result
- Water solubility:
- ca. 17.3 mg/L
- Conc. based on:
- test mat.
- Temp.:
- 25 °C
- Remarks on result:
- other: Critical micelle concentration
- Conclusions:
- Under the study conditions, the the CMC or water solubility of the test substance was determined to be 17.3 mg/L at 25°C.
- Executive summary:
A study was conducted to determined the water solubility of the test substance, based on critical micelle concentration (CMC), according to OECD Guideline 115 and EU Method A.5, in compliance with GLP. Due to the surface activity of the test substance, the CMC value was considered as a water soluibility equivalent in accordance with the ECHA R.7a Guidance. Under study conditions, the CMC of the test substance was determined to be 17.3 mg/L at 25˚C (Carrillo, 2017).
Reference
Results: The intercept of the regression lines at stable surface tension and the line representing the lineal decrease of Surface tension is considered to represent the Critical Micelle Concentration (CMC).
The Critical Micelle Concentration is therefore estimated as 17.3 mg/l (refere attached background material for CMC graph).
| C (ppm) | ST mN/m | log C |
| 1.2 | 47.04 | 0.06 |
| 5.4 | 36.43 | 0.73 |
| 11.3 | 31.96 | 1.05 |
| 15.4 | 29.89 | 1.19 |
| 20.4 | 29.02 | 1.31 |
| 30.9 | 27.75 | 1.49 |
| 40.7 | 28.17 | 1.61 |
Description of key information
The water solubility was determined based on critical micelle concentration according to OECD Guideline 115 and EU Method A.5 (Carrillo, 2017).
Key value for chemical safety assessment
- Water solubility:
- 17.3 mg/L
- at the temperature of:
- 25 °C
Additional information
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.
