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EC number: 918-205-7 | 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:
- 2017-08-21 to 2017-08-25
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 105 (Water Solubility)
- Version / remarks:
- 1995
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.6 (Water Solubility)
- Version / remarks:
- 2014
- GLP compliance:
- yes (incl. QA statement)
- Type of method:
- flask method
- Key result
- Water solubility:
- 22.3 g/L
- Conc. based on:
- act. ingr. (total fraction)
- Loading of aqueous phase:
- 100 g/L
- Incubation duration:
- 72 h
- Temp.:
- 20 °C
- pH:
- 6.1
- Conclusions:
- The water solubility of n-Butyltriphenylphosphonium bromide is 22.3 g/L (20°C, pH 6.1). The water solubility was determined according to OECD guideline 105 (1995) and Council Regulation (EC) No. 260/2014, Method A.6 using the flask method at 20 ± 0.5°C with pre-incubation at 30 ± 0.5°C.
Reference
Water Solubility Results at 20°C for n-Butyltriphenylphosphonium bromide
Preincubation time1) |
Replicat No. |
Concentration2)[g/L] |
Mean [g/L] |
Measured pH |
Tyndall-Effect |
24 h |
1 |
22.2 |
22.2 |
6.249 |
negative |
2 |
22.1 |
6.006 |
negative |
||
48 h |
1 |
22.0 |
22.2 |
5.987 |
negative |
2 |
22.4 |
6.164 |
negative |
||
72 h |
1 |
22.7 |
22.4 |
6.216 |
negative |
2 |
22.2 |
6.034 |
negative |
||
Mean (24-72 h) |
|
|
22.3 |
6.1 |
negative |
Deviation [%] (24-72 h) |
|
|
1.3 |
|
|
Control (double distilled water) |
|
|
|
6.054 |
negative |
1) Temperature was kept constant at 20+0.5°C
2) Dilution factor of 1000 and exact weight of the standard taken into account
Description of key information
22.3 g/L at 20 ± 0.5°C
The pH of the aqueous sample after 72 hours stirring was 6.1.
Key value for chemical safety assessment
- Water solubility:
- 22.3 g/L
- at the temperature of:
- 20 °C
Additional information
GLP study according OECD Guideline 105 (1995) and EU method A.6 (2014) using the flask method
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