Registration Dossier
Registration Dossier
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EC number: 215-445-8 | CAS number: 1326-83-6 This substance is identified in the Colour Index by Colour Index Constitution Number, C.I. 53186.
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:
- 16 February - 10 April 2018
- 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:
- yes
- Remarks:
- For the determination of water solubility about three times the quantity of Test Item necessary to saturate the desired volume of water was applied. This part of the study deviates from the guidelines OECD 105.
- Qualifier:
- according to guideline
- Guideline:
- EPA OPPTS 830.7840 (Water Solubility)
- Version / remarks:
- 19 March 2014
- Deviations:
- yes
- Remarks:
- For the determination of water solubility about three times the quantity of Test Item necessary to saturate the desired volume of water was applied. This part of the study deviates from the guidelines OECD 105.
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.6 (Water Solubility)
- Version / remarks:
- March 1998
- Deviations:
- yes
- Remarks:
- For the determination of water solubility about three times the quantity of Test Item necessary to saturate the desired volume of water was applied. This part of the study deviates from the guidelines OECD 105.
- GLP compliance:
- yes (incl. QA statement)
- Type of method:
- flask method
- Key result
- Water solubility:
- 617 g/L
- Conc. based on:
- act. ingr.
- Loading of aqueous phase:
- 360 g/L
- Temp.:
- 20 °C
- pH:
- >= 8.06 - <= 8.19
- Conclusions:
- The water solubility of Solubilised Sulphur Black 1 was determined to be 617 ± 36 g/L (95% confidence interval) at 20 ± 1 °C using the shake-flask method for the performance.
- Executive summary:
The water solubility was determined according to OECD 105, OPPTS 830.7840 and Regulation (EC) No. 440/2008 method A.6 using the shake flask method. About 36 g Solubilised Sulphur Black 1 was weighed into 100 mL stoppered Erlenmeyer flasks (3x3 parallels). After the addition of 30 mL ultra-pure water, the flasks were agitated at 30 °C. Passing 1, 2 and 3 days, 3 parallel flasks were removed and re-equilibrated at 20 °C for 24 hours. The water solubility of Solubilised Sulphur Black 1 was determined to be 617 g/L.
Reference
Results of the determination of Solubilised Sulphur Black 1 concentrations
Sampling time |
Measured concentration of Solubilised Sulphur Black 1 (g/L) |
Measured pH |
||
Test vessels |
Mean with the 95% confidence intervals |
|||
After 24h |
719 |
654 ± 142 |
8.13 |
|
614 |
8.07 |
|||
628 |
8.16 |
|||
After 48h |
660 |
602 ± 126 |
8.06 |
|
577 |
8.19 |
|||
568 |
8.16 |
|||
After 72h |
594 |
595 ± 12 |
8.10 |
|
601 |
8.13 |
|||
591 |
8.11 |
|||
Solubility ofthe test item (g/L) |
617 ± 36 |
- |
||
RSD% |
8 |
- |
||
pH of ultra-pure water |
- |
5.97 |
||
Description of key information
The water solubility of Solubilised Sulphur Black 1 was determined to be 617 ± 36 g/L (95% confidence interval) at 20 ± 1 °C using the shake-flask method for the performance.
Key value for chemical safety assessment
- Water solubility:
- 617 g/L
- at the temperature of:
- 20 °C
Additional information
The water solubility was determined according to OECD 105, OPPTS 830.7840 and Regulation (EC) No. 440/2008 method A.6 using the shake flask method. About 36 g Solubilised Sulphur Black 1 was weighed into 100 mL stoppered Erlenmeyer flasks (3x3 parallels). After the addition of 30 mL ultra-pure water, the flasks were agitated at 30 °C. Passing 1, 2 and 3 days, 3 parallel flasks were removed and re-equilibrated at 20 °C for 24 hours. The water solubility of Solubilised Sulphur Black 1 was determined to be 617 g/L.
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