Registration Dossier
Registration Dossier
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EC number: 203-632-7 | CAS number: 108-95-2
Endpoint summary
Administrative data
Description of key information
Additional information
Transport and distribution
Adsorption/desorption
The soil sorption coefficient (Koc values) for phenol was measured in four different soils. The soils cover a big variability with respect to sand (4% to 73%), silt (22% to 76%), clay (7% to 23%), organic carbon (1.6% to 3.7%), and pH (5.2 to 7.5). The soil sorption coefficients (Koc values) for phenol which are described in this study are located within the range 14.0 L/kg to 26 L/kg. In addition to the batch equilibrium studies the Koc was determined using the HPLC-method resulting in Koc values between 38 L/kg and 73 L/kg. On the basis of the log Pow value (measured log Pow value for phenol: 1.47), in accordance with the TGD, the Koc value is calculated as 82.8 l/kg. The calculated Koc value is located within the range of the experimentally determined values and is taken into account in the further considerations.
Henry's Law constant
The Henry's law constant of phenol was calculated to be 0.022 Pa m3/mol at 20°C.
Distribution modelling
The theoretical distribution of phenol in the environment was calculated using the Mackay Level I. According the simulation the hydrosphere is the main target compartment for phenol in the environment (98.8 % in water) and only a very minor amount is distributed into the air (0.8 %).
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