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: 500-343-0 | CAS number: 157627-92-4 1 - 2.5 moles ethoxylated
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:
- 23 Feb - 1 Mar 2016
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- guideline study with acceptable restrictions
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 105 (Water Solubility)
- Deviations:
- yes
- Remarks:
- preliminary test only, due to gel formation
- Principles of method if other than guideline:
- No analytical measurement, but visual inspection of the solution. Reason: completely miscible in all concentrations and gelling for concentration
> 549 g/L. - GLP compliance:
- no
- Type of method:
- other: preliminary estimation, visual assessment
- Key result
- Water solubility:
- 549 g/L
- Temp.:
- 20 °C
- pH:
- 7.49
- Remarks on result:
- other: With increasing amount of test item (> 549 g/L) a gel is formed.
Reference
Preliminary test:
To 2 g of water, the following aliquots of test item were added:
Experiment |
Weighed sample [g] |
Result |
A |
0.9233 |
clear liquid, viscous |
B |
0.5564 |
clear liquid |
C |
2.4303 |
clear gel, slight yellow |
pH = 7.49 (10 % solution)
With 2.4303 g of the test item being mixed into 2 g of water, a gel with a total weight of 4.4303 g has been formed. This is equivalent to 54.9% (w/w) of test item in solution/gel. Due to the fact, that the formation of the gel is a continuous process and no discrete point can be identified at which dissolution in water switches to gelling, the water solubility can be approximated to 549 g/L.
Description of key information
approx. 549 g/L at 20 °C, pH=7.49
Key value for chemical safety assessment
- Water solubility:
- 549 g/L
- at the temperature of:
- 20 °C
Additional information
The water solubility of the substance was determined according to OECD Guideline 105 (preliminary test). Gel formation at concentrations > 549 g/L was observed. Due to the formation of a gel the investigation was stopped after the preliminary test, and the water solubility was approximated to 549 g/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.
