Registration Dossier
Registration Dossier
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EC number: 413-090-5 | 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:
- 11 March 1993 to 26 March 1993
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.6 (Water Solubility)
- Version / remarks:
- 84/449/EEC
- Deviations:
- yes
- Remarks:
- The experiments were performed with amounts only twice higher than in the preliminary test. Requirement of the guideline: The study is to be performed with amounts 5 times higher than the water solubility value determined by preliminary experiments.
- GLP compliance:
- yes
- Type of method:
- flask method
- Water solubility:
- 209.8 g/L
- Conc. based on:
- test mat.
- Temp.:
- 20 °C
- pH:
- 6
- Key result
- Water solubility:
- 113 g/L
- Conc. based on:
- act. ingr.
- Incubation duration:
- 24 - 72 h
- Temp.:
- 20 °C
- pH:
- 6
- Details on results:
- The high percentage of inorganic salts in the test substance (see project OC 016-93) possibly influences the solubility of Reaktiv-Gelb F-68072 FW in water. Therefore it was decided to perform the experiments with amounts only twice higher than in the preliminary test. (Requirement of the guideline: The study is to be performed with amounts 5 times higher than the water solubility value determined by preliminary experiments.)
The results seem to be slightly dependent of stirring time at 30 °C. Since the repeatability is still lower than 15 % - as required by the guideline - an average can thus be calculated from the above data:
Average: 209.8 g/l
Standard deviation: 3.5 g/l
(rel. standard deviation: 1.7 %) - Conclusions:
- The water solubility of the test substance is 113 g a.i./L
- Executive summary:
The objective of this study was the determination of the water solubility of the test substance according to EU test guidance 84/449/EEC Part A.6. Study conducted in compliance with GLP.
The high percentage of inorganic salts in the test substance (see project OC 016-93) possibly influences the solubility of Reaktiv-Gelb F-68072 FW in water. Therefore it was decided to perform the experiments with amounts only twice higher than in the preliminary test. (Requirement of the guideline: The study is to be performed with amounts 5 times higher than the water solubility value determined by preliminary experiments.)
The results seem to be slightly dependent of stirring time at 30 °C. Since the repeatability is still lower than 15 % - as required by the guideline - an average can thus be calculated from the above data:
Average: 209.8 g/L
Standard deviation: 3.5 g/L
(rel. standard deviation: 1.7 %)
The water solubility of the test substance is 113 g a.i./L
Reference
Experiment No. | Portion test substance (g/l) | Stirring time (h) at 30 °C | pH at room temperature | Mass ratio testsub./water (g/l) |
1 | 24.66 | 24 | 4.6 | 206.17 |
2 | 24.32 | 48 | 4.7 | 210.15 |
3 | 24.00 | 72 | 4.7 | 213.16 |
4 (blank) | 0 | 72 | 6.5 | 0 |
Description of key information
The water solubility of the test substance is 113 g a.i./L
Key value for chemical safety assessment
- Water solubility:
- 113 g/L
- at the temperature of:
- 20 °C
Additional information
The objective of this study was the determination of the water solubility of the test substance according to EU test guidance 84/449/EEC Part A.6. Study conducted in compliance with GLP.
The high percentage of inorganic salts in the test substance (see project OC 016-93) possibly influences the solubility of Reaktiv-Gelb F-68072 FW in water. Therefore it was decided to perform the experiments with amounts only twice higher than in the preliminary test. (Requirement of the guideline: The study is to be performed with amounts 5 times higher than the water solubility value determined by preliminary experiments.)
The results seem to be slightly dependent of stirring time at 30 °C. Since the repeatability is still lower than 15 % - as required by the guideline - an average can thus be calculated from the above data:
Average: 209.8 g/L
Standard deviation: 3.5 g/L
(rel. standard deviation: 1.7 %)
The water solubility of the test substance is 113 g a.i./L
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