Registration Dossier
Registration Dossier
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EC number: 204-493-5 | CAS number: 121-69-7
Endpoint summary
Administrative data
Description of key information
Additional information
Phototransformation in air:
The atmospheric oxidation half-life of N,N-dimethylaniline was estimated using the level III multimedia model. It was estimated that the substance is not persistent in air medium as the half life period of N,N-dimethylaniline in air is only 0.1 days. This indicates that N,N-dimethylaniline is rapidly phototransformed in air.
Hydrolysis:
The Hydrolysis rate constant of N,N-dimethylaniline is estimated to be 202.5296 E-12 cm3/molecule-sec. at half life of the 0.634 hrs. The estimated half life of the substance indicates that the substance is rapidly hydrolysable.
In one of the supporting study, the hydrolysis rate constant of the first order reaction of N,N-dimethylaniline at pH 5 ws found to be 3.76 h-1 at a temperature of 22°C. Thus comparing this value with the threshold value of 30 days, it can be concluded that the chemical will not persist in the environment and shal be subject to rapid hydrolysis/oxidation.
Phototransformation in water:
No experimental data available. As this study is not a standard information requirement in REACH and there is no indication from the CSA on the need to investigate further the fate and behaviour of the substance (Annex X requirement), no further testing is considered necessary.
Phototransformation in soil:
No experimental data available. As this study is not a standard information requirement in REACH and there is no indication from the CSA on the need to investigate further the fate and behaviour of the substance (Annex X requirement), no further testing is considered necessary.
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