Registration Dossier
Registration Dossier
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EC number: 604-617-1 | CAS number: 147993-66-6
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:
- guideline study
- Remarks:
- 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
- Key result
- Water solubility:
- > 364 g/L
- Temp.:
- 20 °C
- pH:
- >= 5.72 - <= 6.16
- Conclusions:
- Interpretation of results (migrated information): very soluble (> 10000 mg/L)
- Executive summary:
In the non GLP Klimisch 1 key study from Frischmann (2012), the water solubility of Butanedioic acid, sulfo-, mono (C16-18 and C18-unsatd. alkyl) esters, ammonium sodium salt was determined according to OECD 105 and EU method A.6. The water solubility was determined to be >364 g/L at 20°C.
The results of this study are considered relevant and reliable for the risk assessment.
Reference
The concentrations of the different test solutions were calculated automatically using the equation of the calibration curve and considering the dilution factor of the test solutions. The results are listed in the following table:
Nominal saturation concentration (g/L) |
Water solubility, Results (g/L) |
75 |
71.30 |
125 |
116.6 |
250 |
212.4 |
Thus, the water solubility of the test item Butanedioic acid, sulfo-, mono (C16-18 and C18-unsatd. alkyl) esters, ammonium sodium salt depends on the nominal saturation concentration.
In a second test, the following aliquots of Butanedioic acid, sulfo-, mono (C16-18 and C18-unsatd. alkyl) esters, ammonium sodium salt were added to 10 mL of water and stirred slowly for 1 hour:
Amount of test item added [g] |
Observation |
3.0 |
cloudy solution |
1.0 |
cloudy , pasty |
∑4.0 g |
pasty gel |
While being added to the water, cloudy solutions with increasing viscosity were being formed, resulting in a pasty gel after the addition of 4 g test item to 10 ml water.
Description of key information
Key value for chemical safety assessment
- Water solubility:
- 364 g/L
- at the temperature of:
- 20 K
Additional information
In the non GLP Klimisch 1 key study from Frischmann (2012), the water solubility of Butanedioic acid, sulfo-, mono (C16-18 and C18-unsatd. alkyl) esters, ammonium sodium salt was determined according to OECD 105 and EU method A.6. The water solubility was determined to be >364 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.
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