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Physical & Chemical properties

Water solubility

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Endpoint:
water solubility
Type of information:
read-across from supporting substance (structural analogue or surrogate)
Adequacy of study:
weight of evidence
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
data from handbook or collection of data
Justification for type of information:
As the target substance is hydrolytically unstable with hydrolysis half-life less than 1 hr at 30°C, testing is not feasible. According to hydrolysis test results, the hydrolysis products have been identified to be 2-propanol, isostearic acid and titanium dioxide. The physical, toxicological and ecotoxicological properties of the organic parts have been well-investigated. Read-across approach from hydrolysis products are used for assess the target substance.

Reason / purpose:
read-across source
Qualifier:
according to
Guideline:
EU Method A.6 (Water Solubility)
Deviations:
no
GLP compliance:
not specified
Type of method:
flask method
Key result
Water solubility:
ca. 0.597 mg/L
Conc. based on:
test mat.
Temp.:
25 °C
pH:
ca. 7
Conclusions:
The solubility of the stearic acid is 0.597 mg/L at 25°C according to literature.
Endpoint:
water solubility
Type of information:
experimental study
Adequacy of study:
key study
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
data from handbook or collection of data
Justification for type of information:
As the target substance is hydrolytically unstable with hydrolysis half-life less than 1 hr at 30°C, testing is not feasible. According to hydrolysis test results, the hydrolysis products have been identified to be 2-propanol, isostearic acid and titanium dioxide. The physical, toxicological and ecotoxicological properties of the organic parts have been well-investigated. Read-across approach from hydrolysis products are used for assess the target substance.

Qualifier:
according to
Guideline:
EU Method A.6 (Water Solubility)
Deviations:
no
GLP compliance:
not specified
Type of method:
flask method
Key result
Water solubility:
ca. 0.597 mg/L
Conc. based on:
test mat.
Temp.:
25 °C
pH:
ca. 7
Conclusions:
The solubility of the isostearic acid is 0.597 mg/L at 25°C according to literature.

Description of key information

Key value for chemical safety assessment

Water solubility:
0.597 mg/L
at the temperature of:
25 °C

Additional information