Registration Dossier

Administrative data

Endpoint:
water solubility
Type of information:
experimental study
Remarks:
Calculation made on basis of the solubility behaviour of the organic main constituents
Adequacy of study:
key study
Study period:
17.07.2019 - 23.08.2019
Reliability:
1 (reliable without restriction)

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2019
Report date:
2019

Materials and methods

Test guideline
Qualifier:
according to guideline
Guideline:
other: EEC A.6
Principles of method if other than guideline:
Based on the principles of OECD 105 (first sub-method), but considering the co-existence of constituents having different solubiliuty
GLP compliance:
no
Other quality assurance:
ISO/IEC 17025 (General requirements for the competence of testing and calibration laboratories)
Type of method:
flask method

Test material

Constituent 1
Reference substance name:
Fatty acids, C16-C18 (even numbered) and C18 (unsaturated) and Fatty acids, C16-C18 (even numbered) and C18 (unsaturated) methyl esters
EC Number:
939-235-7
Molecular formula:
Please refer to 'remarks'
IUPAC Name:
Fatty acids, C16-C18 (even numbered) and C18 (unsaturated) and Fatty acids, C16-C18 (even numbered) and C18 (unsaturated) methyl esters
Test material form:
other: liquid
Details on test material:
Typical production sample
Specific details on test material used for the study:
Average sample based on typical substance composition

Results and discussion

Water solubility
Key result
Water solubility:
ca. 3.2 mg/L
Conc. based on:
test mat. (dissolved fraction)
Incubation duration:
ca. 1 d
Temp.:
20 °C
pH:
ca. 7
Details on results:
The result 3.2 mg/L for the water solubility of sample 2704905_002 is approx. a magnitude lower than the precalculated solubility for pure decanoic acid with 47.9 mg/L. The most probable reason is the disproportion between water and sample phase in the stored four individual flasks (see page 4). The upper organic layer might be much more attractive for the decanoic acid than the water phase.

Applicant's summary and conclusion