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EC number: 617-081-9
CAS number: 80473-92-3
See attached "Biodegradation"
The ultimate biodegradability of Thio Acid (GR46580X) was assessed by
measuring the yield of inorganic carbon recovered under standard test
conditions. The methods used were as described in ISO standard 14593:
Water quality - Evaluation of ultimate aerobic biodegradability of
organic compounds in aqueous medium - Method by analysis of inorganic
carbon in sealed vessels (CO2 headspace test), and is essentially the
same as that described in US EPA Guideline OPPTS 835.3210.
The mean inorganic carbon yield attributable to Thio Acid (GR46580X) was
less than 1% of the initial organic carbon loading throughout the time
course of this study. Although Thio Acid (GR46580X) did not undergo
significant mineralisation under the conditions employed in this study,
this is not necessarily an indication that Thio Acid (GR46580X) would
persist or accumulate in the environment.
The mean inorganic carbon yield attributable to the reference substance,
sodium benzoate, was 90% of the initial organic loading on days 14 and
28. These data satisfy the validity criteria stated in the ISO standard,
and show that the microbial inoculum employed was exerting normal
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