Registration Dossier

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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.

The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.

Diss Factsheets

Environmental fate & pathways

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.