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Physical & Chemical properties

Water solubility

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Administrative data

Link to relevant study record(s)

Reference
Endpoint:
water solubility
Type of information:
experimental study
Adequacy of study:
key study
Study period:
2008-05
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:
92/69/EC
Deviations:
no
Qualifier:
according to guideline
Guideline:
OECD Guideline 105 (Water Solubility)
Deviations:
no
GLP compliance:
not specified
Type of method:
flask method
Key result
Water solubility:
< 0.085 mg/L
Conc. based on:
test mat.
Temp.:
20 °C
pH:
>= 6.24 - <= 7.13
Details on results:
The water solubility was determined on the basis of the individual values for the equilibration times of 24 h, 48 h, and 72 h. The water solubility at 20 °C was below the limit of dection of 0.085 mg/L.
Conclusions:
The water solubility was determined on the basis of the individual values for the equilibration times of 24 h, 48 h, and 72 h. The water solubility at 20 °C was below 0.085 mg/L.
Executive summary:

The water solubility of the the test item was determined according to Annex to Directive 92/69/EEC, Point A.6 (1992). Therefore, approximately 0.10 g of test item was weighed into an amber ampoule, 10 mL of redistilled water was added, the solution was sonicated for 15 min. in the ultrasonic bath, and the ampoule was subsequently welded tight. Sets of three ampoules each (triplicate determination) were affixed in the shaking water bath (Haake SWB 25) immediately and after 24 and 48 hours, and all sample sets were shaken at 30°C for a further 24 hours. The temperature was then reduced to 20°C and the ampoules were shaken for a further 24 hours to ensure a thorough mixture. The water solubility was determined on the basis of the individual values for the equilibration times of 24 h, 48 h, and 72 h. The water solubility at 20 °C was < 0.085 mg/L.

Description of key information

The water solubility of the test item was determined to be below 0.085 mg/L at 20 °C.

Key value for chemical safety assessment

Additional information

The water solubility of the the test item was determined according to Annex to Directive 92/69/EEC, Point A.6 (1992). Therefore, approximately 0.10 g of test item was weighed into an amber ampoule, 10 mL of redistilled water was added, the solution was sonicated for 15 min. in the ultrasonic bath, and the ampoule was subsequently welded tight. Sets of three ampoules each (triplicate determination) were affixed in the shaking water bath (Haake SWB 25) immediately and after 24 and 48 hours, and all sample sets were shaken at 30°C for a further 24 hours. The temperature was then reduced to 20°C and the ampoules were shaken for a further 24 hours to ensure a thorough mixture. The water solubility was determined on the basis of the individual values for the equilibration times of 24 h, 48 h, and 72 h. The water solubility at 20 °C was below 0.085 mg/L.