Registration Dossier

Data platform availability banner - registered substances factsheets

Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Currently viewing:

Administrative data

Link to relevant study record(s)

water solubility
Type of information:
experimental study
Adequacy of study:
key study
Study period:
2009-06-24 until 2009-10-15
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Reason / purpose for cross-reference:
reference to same study
Reason / purpose for cross-reference:
reference to other study
according to guideline
OECD Guideline 105 (Water Solubility)
GLP compliance:
yes (incl. QA statement)
Groupe Interministeriel Des Prodiuits Chimique, 2008-05-12
Type of method:
flask method
Key result
Water solubility:
38.46 mg/L
20 °C
Details on results:
Test at time 48 h: solubility 38.77 mg/l at pH 4.25
Test at time 72 h: solubility 38.15 mg/l at pH 4.29

Water solubility results are presented in the following table :



Test item concentration, mg/L

T24 h



T48 h



T72 h



Mean Value



As required by the Guideline, the concentrations measured in the 2 last vessels do not differ by more than 15 %.

Thus, as shown by these results, the water solubility at 20 °C of10-UNDECENOIC ACIDis 38.46 mg/L.

Interpretation of results (migrated information): slightly soluble (0.1-100 mg/L)
The water solubility of the test item 10-UNDECENOIC ACID was assessed according to the OECD Guideline 105. The result was 38.46 mg/l at 20 °C and at pH 4.27.
Executive summary:

The water solubility of the test item 10-UNDECENOIC ACID was assessed according to the OECD Guideline 105. During the analysis, the temperature was 20 °C and the mean value of pH was 4.27. The result was 38.46 mg/l, thus the substance is considered slightly soluble.

Description of key information

One key study according to OECD Guideline 105 resulted in 38.46 mg/l at 20 °C (pH 4.27). The result is supported by a non-guideline supporting study (acid-base titration). According to this publication, the test item appears to have a lower water solubility degree under neutral or more alkaline pH conditions. 

Key value for chemical safety assessment

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

Additional information