Registration Dossier
Registration Dossier
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EC number: 701-197-2 | CAS number: -
Adsorption / desorption
Administrative data
Link to relevant study record(s)
Description of key information
In accordance with column 2 of REACH Annex VIII, the adsorption/desorption screening and further studies on adsorption/ desorption, may be omitted if the substance has a low potential for adsorption, e.g. the log Pow value for the test substance is < 3.0. As the estimated logPow of the substance is -1.94 [est. with KOWWIN v 1.68 (EpiSuite v 4.1)] the study does not need to be conducted.
For completeness, the Koc has been calculated with KOCWIN v4.10 (EPIWIN software by US-EPA):
Koc =10 L/kg (MCI method estimation)
Koc = 0.2034 L/kg (traditional method based on logPow)
Key value for chemical safety assessment
- Koc at 20 °C:
- 10
Additional information
The prediction of soil adsorption properties of the substance 1,2,3 -propanetriol, glycidyl ethers was determined with the computer program KOCWIN v2.00 (EPIWIN software) by US-EPA (Chemservice GmbH, 2011). The program estimates the organic-normalized sorption coefficient for soil, which is designated as Koc. The following two models are used: the Salbjic molecular connectivity (MCI) method as well as the traditional method which is based on the logPow value of the substance. The MCI method is taken more seriously into account, due to the fact that improved correction factors are included, resulting in a Koc value of 10 L/kg. The traditional method reveals a value of 0.2034 L/kg. Based on the achieved results, the adsorption potential of the test substance is regarded as very low.
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