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EC number: 203-180-0
CAS number: 104-15-4
biodegradable under aerobic soil conditions
A single, non-guideline study published in 1966. A soil microorganism
inoculum was used in an aerobic water-based medium at 25C. Duplicate
flasks of a single test substance concentration, 75 mg/L hydroxybenzene
sulfonic acid, were sampled and analyzed over 64 days for change in
spectral absorbance as the measure of test substance presence. An
abiotic control using HgCl2 was run in parallel. The time necessary for
complete degradation was 32 days. The degradation was due to biological
activity because no decreased absorbance was seen in the abiotic
control. The half-life of the test substance under the conditions of
this study would be less than 32 days. This is a non-guideline study,
however, the study design is sufficiently representative and there are
sufficient details to support a conclusion that the test substance,
hydroxybenzene sulfonic acid is biodegradable under aerobic soil
conditions. The study is considered to be of value in providing weight
of evidence to support this conclusion.
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