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EC number: 421-880-6 | CAS number: 201792-73-6
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:
- November 11, 2009-November 21, 2011
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- test procedure in accordance with generally accepted scientific standards and described in sufficient detail
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.6 (Water Solubility)
- GLP compliance:
- no
- Type of method:
- flask method
- Water solubility:
- ca. 183.05 g/L
- Temp.:
- 20 °C
- pH:
- ca. 9
- Conclusions:
- Interpretation of results (migrated information): very soluble (> 10000 mg/L)
The water solubility of the test substance Acid Black 210 is 183 g/L at the temperature of 20°C and pH 9. - Executive summary:
Water solubility of Acid Black 210 was assessed by Method OECD 105/EU A6 flask method at 20°C and pH 9, with spectrophotometric determination of concentrations.
The water solubility is 183 g/L.
Reference
The results of the determination of the test substance solubility are presentedbelow.
Table No.2 Results of determination of test substance solubility in water at 20°C
Day |
pH of saturated solution |
Solubility (g/L) |
1st |
9.03 |
167.13 |
2nd |
9.06 |
197.69 |
3rd |
9.07 |
184.35 |
Average |
183.05 |
|
Standard deviation |
15.32 |
|
Relative standard deviation |
8.37 |
|
Standard deviation is 15.3 g/L; relative standard deviation is 8.4 %.
The water solubility of the test substanceAcid Black 210is 183 g/L at the temperature of 20°C.
Description of key information
183 g/L at 20°C and pH 9.
Key value for chemical safety assessment
- Water solubility:
- 183 g/L
- at the temperature of:
- 20 °C
Additional information
A study for water solubility was performed at 25°C on Acid Black 210, following Method CEE A6 and spectrophotometric determination of concentrations (Stahl, 1996). The summary available is lacking of many information and therefore the test is used as supporting test. The result shows that the water solubility is equal to 270 g/L at pH 8.7.
Another study, used as key study, (Michal Bartos, 2011) was performed on Acid Black 210 according to Method EU A.6, by flask method and spectrophotometric determination of concentrations. The water solubility is equal to 183 g/L at pH 9
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