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Physical & Chemical properties

Water solubility

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Link to relevant study record(s)

Reference
Endpoint:
water solubility
Type of information:
experimental study
Adequacy of study:
key study
Study period:
2011-10-13 to 2011-10-27
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
guideline study with acceptable restrictions
Qualifier:
according to guideline
Guideline:
other: Guidelines for the Testing of chemicals 105 Water Solubility (STATE ENVIRONMENT PROTECTION ADMINISTRATI0N OF CHINA 2004)
Deviations:
no
Principles of method if other than guideline:
The test substance is dissolved in water at a temperature above the test temperature. When saturation is achieved, the mixture is cooled and kept at the test temperature. The mass concentration of the substance in the aqueous solution is determined by a suitable analytical method.
GLP compliance:
no
Type of method:
flask method
Key result
Water solubility:
0.267 g/L
Conc. based on:
test mat.
Loading of aqueous phase:
50 g/L
Incubation duration:
>= 24 - <= 72 h
Temp.:
20 °C
pH:
>= 5.3 - <= 5.38
Remarks on result:
other: Mean

No 1 2 3
Mass of sample 5.0634 5.0295 5.0106
Volume of water 100 100 100
Shaking time in water bath at 30°C [h] 72 48 24
Equilibrium time in water bath at 20 °C [h] 24 24 24
Water solubility [g/L] 0.249 0.273 0.278
pH value 5.33 5.38 5.3
Mean water solubility [g/L] 0.267
Conclusions:
The water solubility of the test substance was determined to be 0.267 g/L at 20 °C.
Executive summary:

A water solubility study (flask method) was conducted according to Guidelines for the Testing of chemicals 105 Water Solubility (STATE ENVIRONMENT PROTECTION ADMINISTRATI0N OF CHINA 2004). The test substance was dissolved in water at a temperature above the test temperature (30 °C). When saturation was achieved, the mixture was cooled and kept at the test temperature (20 °C). Subsequently, the mass concentration of the substance in the aqueous solution, which did not contain any undissolved particles, was determined by a suitable analytical method. The water solubility of the test substance was determined to be 0.267 g/L at 20 °C by HPLC-analysis.

Description of key information

The water solubility of the test substance was determined to be 0.267 g/L at 20 °C.

Key value for chemical safety assessment

Water solubility:
0.267 g/L
at the temperature of:
20 °C

Additional information

A water solubility study (flask method) was conducted according to Guidelines for the Testing of chemicals 105 Water Solubility (STATE ENVIRONMENT PROTECTION ADMINISTRATI0N OF CHINA 2004). The test substance was dissolved in water at a temperature above the test temperature (30 °C). When saturation was achieved, the mixture was cooled and kept at the test temperature (20 °C). Subsequently, the mass concentration of the substance in the aqueous solution, which did not contain any undissolved particles, was determined by a suitable analytical method. The water solubility of the test substance was determined to be 0.267 g/L at 20 °C by HPLC-analysis.