Registration Dossier
Registration Dossier
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EC number: 222-598-4 | CAS number: 3547-33-9
Endpoint summary
Administrative data
Description of key information
Additional information
Assuming equal distribution to air, water, and soil, the Level III Fugacity model found in EPIWIN v4.10 indicates distribution as follows: Air: 0.614%, Water: 24.6%, Soil: 74.5%; Sediment: 0.262%. Half-lives (hours) based on BIOWIN (Ultimate) and AOPWIN: Air: 7.98 hours, Water: 360 hours, Soil: 720 hours, Sediment: 3240 hours.
Parent 2 -(octylthio)ethanol is moderately mobile in Tiffany sand (North Dakota, 0.25% OC), Anthony sandy loam (Arizona, 0.35% OC), and Dundee clay loam (Mississippi, 0.65% OC) soils with Freundlich Kadsvalues of 1.5, 3.4, and 3.5, and Kdesvalues of 1.2, 3.3, and 1.9. However, 2 -(octylthio)ethanol was bound much more tightly in a Gardena silt loam soil (North Dakota, 2.1% OC) with Freundlich Kadsand Kdesvalues of 14.7 and 13.7, respectively. This indicates that soil organic carbon may bind significant amounts of the hydroxyethyl octyl sulfide that reaches soil. Kocvalues were 600, 538, 971, and 700 for adsorption, and Kocdesvalues were 479, 292, 932, and 654. The 1/n (slope of regression isotherm) values were 1.02, 1.07, 1.02, and 0.89 for adsorption, and 0.91, 0.74, 1.18, and 1.12 for desorption.
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