Registration Dossier
Registration Dossier
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EC number: 203-450-8 | CAS number: 106-99-0
Adsorption / desorption
Administrative data
Link to relevant study record(s)
Description of key information
The Koc was calculated to be 51.5 (Log Koc 1.71) using the log Kow of 1.99. Log additional adsorption / desorption values for sediment, suspended matter and soil of 2.58, 5.16 and 1.03 L/kg respectively are reported here as reported in the EU RAR, 2002.
Key value for chemical safety assessment
- Koc at 20 °C:
- 51.5
Other adsorption coefficients
- Type:
- log Kp (sediment-water)
- Value in L/kg:
- 2.58
- at the temperature of:
- 20 °C
Other adsorption coefficients
- Type:
- log Kp (suspended matter-water)
- Value in L/kg:
- 5.16
- at the temperature of:
- 20 °C
Other adsorption coefficients
- Type:
- log Kp (soil-water)
- Value in L/kg:
- 1.03
- at the temperature of:
- 20 °C
Additional information
The adsorption/desorption study has not been conducted as the substance can be expected to have a low potential for adsorption based on a log Kow value of 1.99 and the values cited in EU RAR indicate that adsorption to soil and sediment is not likely to be important. As the substance is a gas, it will preferentially partition to and rapidly volatilize to the atmosphere.
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