Registration Dossier
Registration Dossier
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EC number: 212-783-8 | CAS number: 868-85-9
Adsorption / desorption
Administrative data
Link to relevant study record(s)
Description of key information
Koc = 2.53 (KOCWIN v. 2.00, based on log Kow of -1.13)
Koc = 3.71 (KOCWIN v. 2.00, based on MCI of 2.8)
Key value for chemical safety assessment
Additional information
There is no experimental result available on geoaccumulation. The distribution between the organic phase of soil or sediment solids and porewater can be calculated by QSAR. Koc values of 2.53 (based on log Kow) and 3.71 (based on MCI) were calculated using KOCWIN v.2.00 which is part of EpiSuite v.4.00 (Lanxess, 2010). These Koc values indicate a very low sorption potential of dimethyl phosphonate to soil organic matter according to the criteria of Litz (1990). For monomethyl phosphonate and methanol Koc values of 2.35 and 1.22 were calculated respectively, indicating also a very low geoaccumulation potential for the degradation products (Lanxess, 2010).
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