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EC number: -
CAS number: -
This Test method was performed to assess abiotic hydrolytic transformations of FAT 40863/A TE in aquatic systems at pH values normally found in the environment (pH 4 – 9).
The determination was carried out using a
procedure designed to be compatible with Method C7 Abiotic Degradation,
Hydrolysis as a Function of pH of Commission Regulation (EC) No 440/2008
of 30 May 2008 and Method 111 of the OECD Guidelines for Testing of
Chemicals, 13 April 2004.
The test system used sterile buffer
solutions at pH’s 4, 7 and 9.
No significant peaks were observed at the
approximate retention time of the test item on analysis of any matrix
The sample solutions remained at pH 4.0±0.1,
pH 7.0±0.1 and pH 9.0±0.2 throughout.
The chromatographic profile of the test item
was noted to somewhat different for each test pH. However,
for each test pH, the profile was essentially the same for the standards
compared to the respective samples. On review, it was
considered that this issue was most likely due to dissociation of one of
the test item functional groups, i.e. a pKa issue, and
therefore, not a test issue.
The estimated half-lives at 25 °C of the
test item are shown in the following table:
Estimated half-life at 25 °C
> 1 year
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