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EC number: 500-464-9
CAS number: 160901-27-9
1 - 2.5 moles ethoxylated
According to column 2 of EC 1907/2006 Annex VIII testing on
adsoption/desorption” does not need to be conducted if the substance has
a low potential for adsorption (e.g. the substance has a low
octanol-water partition coefficient) or if the substance and its
degradation products decompose rapidly. Based on a log Kow ≤ 3 the
potential for adsorption of alkyl ether sulfates is low. Hence, testing
of the adsorption and desorption attributes of the category members is
However, to estimate PNEC sediment by the equilibrium partitioning
method data of the sorption behavior of alkyl ether sulfates are needed.
Since measured sorption values are not available, the Koc was calculated
using the QSAR for “Predominantly hydrophobics” from Sabljic & Gusten
Based on an experimental determined log Kow-value of ≤ -0.89, the
calculated log Koc for AES (C9 -11, 1-2.5EO) NH4 (CAS 160901-27-9) is
-0.62 (corresponding to Koc = 0.23 L/kg).
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