Registration Dossier
Registration Dossier
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EC number: 242-555-3 | CAS number: 18755-43-6
Adsorption / desorption
Administrative data
Link to relevant study record(s)
Description of key information
The QSAR determination of the carbon partition coefficient for dimethyl propylphosphonate using the model KOCWIN included in the Estimation Program Interface (EPI) Suite v4.1 revealed values of 20.18 L/kg (log Kow method) and 19.32 L/kg (MCI method) for the unaffected molecule of dimethyl propylphosphonate as any decomposition (e.g. hydrolysis) of dimethyl propylphosphonate is not taken into account by the program.
As both calculated values are in the same range the value determined with the MCI method was taken into account as key value as the statistical characteristics of this method show slightly better values.
Key value for chemical safety assessment
- Koc at 20 °C:
- 19.32
Additional information
Waiving:
In accordance with column 2 of REACH Annex VIII, the study does not need to be conducted as dimethyl propylphosphonate can be expected to have a low potential for adsorption due to a low octanol water partition coefficient (log Kow ≤ 3).
[LogKoc: 1.2859]
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