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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Stability

Phototransformation in air

After evaporation or exposure to the air, the target substance dimethyl(propyl)amine will be rapidly degraded by photochemical processes.

 

Hydrolysis

Hydrolysis of dimethy(propyl)amine is not expected due to the absence of hydrolysable groups. Moreover, the substance is readily biodegradable.

 

Biodegradation

The target substance dimethyl(propyl)amine (CAS 926-63-6) is readily biodegradable according to OECD Guideline 310.

The source substance ethyldimethylamine (CAS 598-56-1) is readily biodegradable according to OECD method 301D.

The source substance N,N-dimethylbutylamine (CAS 927-62-8) is readily biodegradable according to OECD method 301B (Laus, 2012).

 

Bioaccumulation

Significant accumulation of the target substance dimethyl(propyl)amine and the source substances N,N-dimethylbutylamine (CAS 927-62-8), ethyldimethylamine (CAS 598-56-1) and triethylamine (CAS 121-44-8) in organisms is not to be expected.

 

Transport and distribution

Adsorption

Adsorption of the target substance diemthyl(propyl)amine (CAS 926-63-6) and the source substances N,N-dimethylbutylamine (CAS 927-62-8), ethyldimethylamine (CAS 598-56-1) and triethylamine (CAS 121-44-8) to the solid soil phase is possible under environmentally relevant conditions. However, the substances are readily biodegradable.

 

Henry's Law Constant

From the water surface, the target substance dimethyl(propyl)amine and the source substances N,N-dimethylbutylamine (CAS 927-62-8), ethyldimethylamine (CAS 598-56-1) and triethylamine (CAS 121-44-8) will slowly evaporate into the atmosphere.

 

Distribution Modelling

Over time, the uncharged target substance diemthyl(propyl)amine (CAS 926-63-6) will preferentially distribute into the compartment water (65%) and air (35%).

Over time the uncharged source substances N,N-dimethylbutylamine (CAS 927-62-8), ethyldimethylamine (CAS 598-56-1) and triethylamine (CAS 121-44-8) will preferentially distribute into the compartment air (62 to 92%) and water (8.4 to 38%).