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EC number: 429-330-7
CAS number: -
PDTN was tested for its ready
biodegradabiltiy in the carbon dioxide (CO2) evolution test (modified
sturm test) at 42 mg per 2 litres, corresponding to 12 mg TOC/L.
The study procedure was based on EEC
directive 92/69, C.4-C, December 1992, and OECD guideline No. 301 B July
17, 1992. The Theoretical CO2 production (ThCO2) of PDTN was calculated
to be 2.10 mg CO2/mg. The relative degradation values calculated from
the measurements performed during the test period revealed no
significant degradation of PDTN. In the toxicity control PDTN was found
to be not inhibitory. Since all acceptability criteria prescribed by the
protocol were met, this study was considered to be valid. In conclusion,
PDTN was not readily biodegradable under the conditions of the modified
Sturm test presently performed.
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