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EC number: 449-400-0
CAS number: 25822-43-9
The test item was investigated for its ready biodegradability in a CO2 Evolution test. The test item was not degraded within 28 days. The test item is considered to be not readily biodegradable.
CO2 Evolution test
A study was performed to determine the
potential for ready biodegradation of the test item in water by the
carbon dioxide (CO2) evolution method following OECD 301B, adopted in
1992. The CO2 released upon biodegradation of the test item and the
reference substance sodium benzoate was measured over 28 days. Two blank
controls (containing only inoculum) and one toxicity control (containing
inoculum, reference and test substances) were established to account for
background CO2 production and toxicity of the test item, respectively.
All validation criteria were fulfilled. The sodium benzoate controls had
degraded > 60 % at day 8. Based on the CO2 analysis, there was no
biodegradation observed for the test item within the 28 days. The
degradation of the test item was therefore less than the minimal
guideline demand of 60 %. Therefore the test item is considered to be
not readily biodegradable.
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