Registration Dossier
Registration Dossier
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EC number: 203-397-0 | CAS number: 106-43-4
Endpoint summary
Administrative data
Description of key information
Additional information
Adsorption/desorption behaviour
The distribution behaviour of 4 -chlorotoluene between water and soil was determined according to OECD guideline 106 (batch method). Three different soils were used yielding the following results (RCC, 1992):
sand: Koc = 512.2
loamy sand: Koc = 327.1
sandy loam: Koc = 335.9
Henry's Law Constant
The Henrys Law Constant for 4 -chlorotoluene was calculated based on the Bond Method (446.8 Pa*m³/mole) as well as the Group Method (494.5 Pa*m³/mole) applying the EPI-Suite software (Bayer Industry Services, 2004).
Distribution Modelling
The distribution of p-chlorotoluene in a "unit world" was calculated according to the Mackay fugacity model level I (Bayer Industry Services, 2004) based on the physico-chemical properties of the test substance. The main target compartment for p-chlorotoluene is air with 99.67 %, followed by water with 0.24 %, and soil with 0.04%.
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