Registration Dossier
Registration Dossier
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EC number: 235-517-2 | CAS number: 12262-25-8 This substance is identified in the Colour Index by Colour Index Constitution Number, C.I. 53430.
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:
- 01 June 2017 - 13 July 2017
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 105 (Water Solubility)
- Version / remarks:
- July 27, 1995
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.6 (Water Solubility)
- Version / remarks:
- 19 March 2014
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- EPA OPPTS 830.7840 (Water Solubility)
- Version / remarks:
- March 1998
- Deviations:
- no
- GLP compliance:
- yes (incl. QA statement)
- Type of method:
- flask method
- Key result
- Water solubility:
- 0.65 mg/L
- Conc. based on:
- act. ingr.
- Loading of aqueous phase:
- 5 g/L
- Incubation duration:
- >= 24 - <= 72 h
- Temp.:
- 20 °C
- pH:
- >= 2.55 - <= 2.59
- Conclusions:
- The water solubility of the test item was determined to be 0.65 mg/L at 20 °C ± 1 °C.
- Executive summary:
To determine the water solubility of the test item a study according to OECD guideline 105 was performed. In the course of this study the water solubility was determined at 20 °C ± 1 °C using the shake-flask method for the performance of the main test. The water solubility of the test item was determined to be 0.65 +/- 0.04 mg/L (95% confidence interval).
Reference
Regression data
Analytical occasion |
Constant |
X Coefficient |
R. Squared |
June 15, 2017 |
0.0045 |
0.0542 |
0.9999 |
Results of the determination of Leuco Sulfur Blue 9 concentrations
Sampling time |
Measured concentrationofLeuco Sulfur Blue 9 (mg/L ) |
Measured pH |
|
Test vessels |
Mean withthe 95% confidence intervals |
||
After 24h |
0.56 |
0.63 ± 0.15 |
2.59 |
0.66 |
2.57 |
||
0.67 |
2.57 |
||
After 48h |
0.60 |
0.67 ± 0.15 |
2.57 |
0.70 |
2.55 |
||
0.71 |
2.55 |
||
Results of the determination of Leuco Sulfur Blue 9 concentrations (continued)
Sampling time |
Measured concentrationofLeuco Sulfur Blue 9 (mg/L ) |
Measured pH |
|||
Test vessels |
Mean withthe 95% confidence intervals |
||||
After 72h |
0.61 |
0.65 ± 0.09 |
2.56 |
||
0.68 |
2.56 |
||||
0.65 |
2.56 |
||||
Solubility ofthe test item (mg/L) |
0.65 ± 0.04 |
- |
|||
RSD% |
8 |
- |
|||
Ultra-pure water |
< LOQ |
5.94 |
|||
Description of key information
The water solubility of the test item was determined to be 0.65 mg/L at 20 °C ± 1 °C.
Key value for chemical safety assessment
- Water solubility:
- 0.65 mg/L
- at the temperature of:
- 20 °C
Additional information
To determine the water solubility of the test item a study according to OECD guideline 105 was performed. In the course of this study the water solubility was determined at 20 °C ± 1 °C using the shake-flask method for the performance of the main test. The water solubility of the test item was determined to be 0.65 ± 0.04 mg/L (95% confidence interval).
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