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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.

The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.

Diss Factsheets

Physical & Chemical properties

Water solubility

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Administrative data

Link to relevant study record(s)

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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 for cross-reference:
read-across source
Qualifier:
according to guideline
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
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