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EC number: 446-990-1
CAS number: -
The aim of this study was to assess the absorption/desorption
coefficient (Koc) of aquaxyl on soil. The estimation was carried out
according to the test guidelines described in OECD guideline n° 121and
directive 2001/59/EEC, C.19.
HPLC method was performed on an analytical column packed with a
cyanopropyl solid phase containing lipophilic and polar moities. As the
test item is not ionizable, a test was performed with the following
mobile phase: methanol/water (55/45 v/v) at pH5.5
As the retention time of the peak observed for the test item was close
to the dead volume and below the retention time of acetanilide,
reference item (Koc=1.25), the adsorption coefficient was demonstrated
to be such as log Koc<1.25. In addition, when possible, an estimation
using a calculation method on the non validated software PCKOC (v1.66)
The test item is a mixture.
The absortption coefficient of the test item was estimeted on the basis
of the highest obtained value.
the Koc of the test item was stated ≤1.
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