Registration Dossier
Registration Dossier
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EC number: 696-616-8 | CAS number: 1268344-02-0
Endpoint summary
Administrative data
Description of key information
Additional information
Ethoxylated Alkyl-1,3 -diaminopropanes are for a large extent protonated under environmental conditions. This means that they will behave as salts in water and will have a very low vapour pressure. The solubility of these waxy cationic surface active substances will be influenced by the pH and is difficult to determine because of the surface active properties. As an alternative as suggested by the REACH guidance R.7 the CMC at pH 7 was determined. Evaporation from water is based on the low vapour pressure and the observed CMC values very unlikely. The actual dissolved concentration in water will be extremely low as the ethoxylated alkyl-1,3 -diaminopropanes will sorb strongly to sorbents both based on hydrophobicity and ionic interaction where the ionic interaction will govern the partitioning process.
Distribution constants ranging from 6219 to 91157 L/kg were observed in an OECD TG 106 test. There seems no relationship between the organic carbon content of the soils and the measured distribution coefficients. The observed distribution coefficients seem to increase with with the clay content and CEC of the soils. F
rom the three distribution constants a mean Kd of 43274 L/kg is calculated.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.
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