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Diss Factsheets

Physical & Chemical properties

Water solubility

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Administrative data

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Reference
Endpoint:
water solubility
Type of information:
experimental study
Adequacy of study:
key study
Study period:
February 2019
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Qualifier:
equivalent or similar to guideline
Guideline:
EU Method A.6 (Water Solubility)
Deviations:
not specified
Qualifier:
equivalent or similar to guideline
Guideline:
OECD Guideline 105 (Water Solubility)
Deviations:
not specified
Qualifier:
equivalent or similar to guideline
Guideline:
EPA OPPTS 830.7840 (Water Solubility)
Deviations:
not specified
GLP compliance:
yes (incl. QA statement)
Type of method:
flask method
Remarks:
slow-stirring flask method
Key result
Water solubility:
ca. 0.001 - ca. 1.3 mg/L
Loading of aqueous phase:
5 mg/L
Temp.:
20 °C
pH:
>= 6.4 - <= 6.7
Key result
Water solubility:
ca. 0.25 - ca. 4.5 mg/L
Loading of aqueous phase:
50 mg/L
Temp.:
20 °C
pH:
>= 6.6 - <= 6.7
Conclusions:
The water solubility of the test item at 20°C was 0.00000105 g/L (1.05 µg/L) to 0.0013 g/L (1.3 mg/L) at a loading rate of 5 mg/L and 0.00025 g/L (0.25 mg/L) to 0.0045 g/L (4.5 mg/L) at a loading rate of 50 mg/L. The pH of the aqueous samples was between 6.4 and 6.7.
Executive summary:

The slow-stirring flask method was applied for the determination of the water solubility ofSoya/Linseed Oil Fatty Acid-BADGE reaction product.

Even though stirring time was extended up to 147 hours, no equilibrium water solubility concentration was observed at any of the two loading rates. Measured concentrations varied strongly. This might have been due to the nature of the test item, as it was an UVCB. No experimental adaption could be identified to obtain a more insightful result. The viscosity of the test item was considered too low to allow column elution.

The water solubility of the test item at 20°C was 0.00000105 g/L (1.05 µg/L) to 0.0013 g/L (1.3 mg/L) at a loading rate of 5 mg/L and 0.00025 g/L (0.25 mg/L) to 0.0045 g/L (4.5 mg/L) at a loading rate of 50 mg/L. The pH of the aqueous samples was between 6.4 and 6.7.

Description of key information

Key value for chemical safety assessment

Water solubility:
4.5 mg/L
at the temperature of:
20 °C

Additional information

The slow-stirring flask method was applied for the determination of the water solubility ofSoya/Linseed Oil Fatty Acid-BADGE reaction product.

Even though stirring time was extended up to 147 hours, no equilibrium water solubility concentration was observed at any of the two loading rates. Measured concentrations varied strongly. This might have been due to the nature of the test item, as it was an UVCB. No experimental adaption could be identified to obtain a more insightful result. The viscosity of the test item was considered too low to allow column elution.

The water solubility of the test item at 20°C was 0.00000105 g/L (1.05 µg/L) to 0.0013 g/L (1.3 mg/L) at a loading rate of 5 mg/L and 0.00025 g/L (0.25 mg/L) to 0.0045 g/L (4.5 mg/L) at a loading rate of 50 mg/L. The pH of the aqueous samples was between 6.4 and 6.7.