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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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: 939-704-6 | CAS number: -
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:
- 2012
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- other: Guideline compliant study with good documentation
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 105 (Water Solubility)
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.6 (Water Solubility)
- GLP compliance:
- no
- Type of method:
- flask method
- Water solubility:
- 470 g/L
- Temp.:
- 20 °C
- pH:
- 7.9
- Conclusions:
- Interpretation of results (migrated information): soluble (1000-10000 mg/L)
- Executive summary:
In the non GLP Klimisch 1 key study from Frischmann (2012), the water solubility of Aspartic acid, N-(3-carboxy-1-oxo-sulfopropyl)-N-(C16-C18 (even numbered), C18 unsaturated alkyl) tetrasodium salts was determined according to OECD 105 and EU method A.6. The water solubility was determined to be >470 g/L at 20°C.
The results of this study are considered relevant and reliable for the risk assessment.
Reference
With 1.8 g of test item being mixed into 2 mL of water, a gel with a total weight of approximately 1.8 g has been formed. This is equivalent to 47 % (w/w) of test item in solution/gel.
As the density of the water will significantly increase with addition of the test item, it can be concluded that water solubility is about 470 g/L, resulting in a 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 > 470 g/L.
Thus the following results can be reported:
Water Solubility (Aspartic acid, N-(3-carboxy-1-oxo-sulfopropyl)-N-(C16-C18 (even numbered), C18 unsaturated alkyl) tetrasodium salts) > 470 g/L
The water solubility of Aspartic acid, N-(3-carboxy-1-oxo-sulfopropyl)-N-(C16-C18 (even numbered), C18 unsaturated alkyl) tetrasodium salts is greater than 500 g/L. The test item is miscible with water in any proportion. With increasing amount of test item a gel is formed.
The water solubility was determined at 20 °C. The pH value of a 2:1 (water:test sample) solution was 7.9
Description of key information
water solubility (20°C): > 470 g/L
Key value for chemical safety assessment
- Water solubility:
- 470 g/L
- at the temperature of:
- 20 °C
Additional information
In the non GLP Klimisch 1 key study from Frischmann (2012), the water solubility ofAspartic acid, N-(3-carboxy-1-oxo-sulfopropyl)-N-(C16-C18 (even numbered), C18 unsaturated alkyl) tetrasodium saltswas determined according to OECD 105 and EU method A.6. The water solubility was determined to be >470 g/L at 20°C.
The results of this study are considered relevant and reliable for the risk assessment.
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.
