Registration Dossier
Registration Dossier
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EC number: 435-740-7 | CAS number: 94317-64-3
Endpoint summary
Administrative data
Description of key information
Additional information
Hydrolysis of NBPT was investigated in two phases under different conditions. The dissipation half-life of the parent compound was determined at 25 °C at different pH-values. The resulting DT50-values were: 58 min (at pH 3), 92 d (at pH 7) and 16 d (at pH 11), respectively.
The biodegradation of NBPT was tested in a modified sturm test. The test resulted in a degradation rate of the test substance of 9.51% based on CO2-evolution. Thus NBPT is not readily biodegradable under aerobic conditions.
The adsorption potential of NBPT on soil / sewage sludge was evaluated using a HPLC screening method at 25 °C. The extrapolated log Koc-values from regression data were 0.5 (mean of three replicates) and 0.8 (mean of three replicates), respectively.
Thus a resulting log Koc-value of < 1.25 was deduced (lowest available reference value).
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