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Diss Factsheets

Physical & Chemical properties

Water solubility

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Reference
Endpoint:
water solubility
Type of information:
experimental study
Adequacy of study:
key study
Study period:
Experimental Starting Date 11/17/2015 - Experimental Completion 12/18/2015
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Qualifier:
according to guideline
Guideline:
OECD Guideline 105 (Water Solubility)
Deviations:
no
Qualifier:
according to guideline
Guideline:
EU Method A.6 (Water Solubility)
Deviations:
no
GLP compliance:
no
Type of method:
flask method
Key result
Water solubility:
< 0.1 µg/L
Conc. based on:
test mat.
Temp.:
20 °C
Remarks on result:
other: pH value not specified
Details on results:
Flask-Method: Average three experiments: < 1,0 μg/l

Individual Results

Preliminary Visual Estimation of the Water Solubility

 Amount of the test item in mg  Total volume in ml Appearance of mixture 
 10  10  undissolved
 10  50  undissolved
 10  100  undissolved
 10  1000  undissolved

Appearance of the test mixtures in the preliminary test

The preliminary visual experiments showed that the water solubility of the test item is below 10 mg/l.

Flask-Method

Water solubility of the test item – experiments A to D

 Experiment A  B  C  D (blank) 
 Amount of test item [mg]  1000 1000  1000  - 
 Stirring time at 30 °C [h]  24 48  72  72 
 Measured concentration [μg/l]  n.d. (< 1,0)  n.d. (< 1,0)  n.d. (< 1,0)  -
 Dilution  undiluted  undiluted  undiluted  -
 Water solubility [μg/l]  < 1,0 < 1,0   < 1,0  -

Average experiments A to C: < 1,0 μg/l

Standard addition for recheck

 Standard Measured concentration (mg/L)  % Recovery 
 Sample C + 2,7 μg test item  2.6 96.3% 

The recovery of 96,3 % indicates a sufficient accuracy of the analytical method.

Conclusions:
Interpretation of results (migrated information): insoluble (< 0.1 mg/L)
The water solubility cs of the test item at a temperature of 20 °C was determined to (without correction for the purity):
cs = < 1.0 μg/l
Executive summary:

The water solubility cs of the test item at a temperature of 20 °C was determined following OECD guideline 105 (without correction for the purity): cs = < 1.0 μg/l

Interpretation of results: insoluble (< 0.1 mg/L)

Description of key information

The test item is insoluble (< 0.1 mg/L).

The water solubility cs of the test item at a temperature of 20 °C was determined to be <1.0 μg/l

Key value for chemical safety assessment

Water solubility:
0.1 µg/L
at the temperature of:
20 °C

Additional information

The water solubility cs of the test item at a temperature of 20 °C was determined following OECD guideline 105 (without correction for the purity): cs = < 1.0 μg/l