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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:
From 09 April 2019 to 12 April 2019
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Qualifier:
according to guideline
Guideline:
OECD Guideline 105 (Water Solubility)
Deviations:
no
GLP compliance:
no
Type of method:
flask method
Specific details on test material used for the study:
Identification: FAT 11127/E TE
Lot: 2024 (Thailand)
Appearance: Dark blue powder
Key result
Water solubility:
ca. 0.255 g/L
Conc. based on:
test mat.
Temp.:
20 °C
Remarks on result:
other: pH not specified

Preliminary Visual Estimation of the Water Solubility :

 Amount of test item in mg  Total volume in mL  Appearance of mixture
 10  10  Undissolved
 10  10  Undissolved
 10  10  Dissolved

Flask-Method:

 Experiment  A  B  C  D (blank)
 Amount of test item [mg]  2300  2300  2300  -
 Stirring time at 30 °C [h] 24   48  72  72
 Measured concentration [mg/l]  13.2  12.2  12.9  -
 Dilution  0.25 ml/5 ml   0.25 ml/5 ml   0.25 ml/5 ml  -
 Water Solubility [g/l]  0.264  0.243  0.259  -

Average experiments A to C: 0.255 g/l

Analytical accuracy :

 Standard  Measure concentration (mg/L)  % Recovery
 Sample C + 10.2 mg test item  22.7  98.3
     

The recovery of 98.3 % indicates a sufficient accuracy of the analytical method.

Conclusions:
The water solubility of the test item at a temperature of 20 °C was determined to be 0.255 g/l.
Executive summary:

Water solubility of FAT 11127/E TE was assessed according to the flask method as specified in OECD test guideline 105.  In the experiment, three flasks were prepared with about 2300 mg test item and 4.3 ml water. The batches were incubated for 24, 48 & 72 hours respectively and compared with blank using UV VIS. Based on the findings of the study, the water solubility (cs) of the test item at a temperature of 20 °C was determined to be 0.255 g/l.

Description of key information

The water solubility of the test item at a temperature of 20 °C was determined to be 0.255 g/l.

Key value for chemical safety assessment

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

Additional information

Water solubility of FAT 11127/E TE was assessed according to the flask method as specified in OECD test guideline 105.  In the experiment, three flasks were prepared with about 2300 mg test item and 4.3 ml water. The batches were incubated for 24, 48 & 72 hours, respectively and compared with blank using UV VIS. Based on the findings of the study, the water solubility (cs) of the test item at a temperature of 20 °C was determined to be 0.255 g/l.