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EC number: 905-806-4
CAS number: -
The EU-REACH information requirements related to the soil organic carbon partition coefficient (Koc) are derogated due to technical inability to measure them. However, estimates of these properties are provided (Table 25 in the Category Justification Document). For the constituents having molecular weight up to approximately 2,500 g/mol, the estimated log Koc values range from 4.5 (for the mMDI substances) to 18.0, indicating a strong affinity of the constituents, and hence the MDI substances, to soil if only an equilibrium partitioning mechanism were involved. A log Koc value of 4.5 is considered for the derivation of the PNECsediment and PNECsoil.
Information on Registered Substances comes from registration dossiers which have been assigned a registration number. The assignment of a registration number does however not guarantee that the information in the dossier is correct or that the dossier is compliant with Regulation (EC) No 1907/2006 (the REACH Regulation). This information has not been reviewed or verified by the Agency or any other authority. The content is subject to change without prior notice.Reproduction or further distribution of this information may be subject to copyright protection. Use of the information without obtaining the permission from the owner(s) of the respective information might violate the rights of the owner.
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