Registration Dossier
Registration Dossier
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EC number: 272-727-3 | CAS number: 68909-99-9
Phototransformation in air
Administrative data
Link to relevant study record(s)
Description of key information
After evaporation or exposure to the air, the substance will be rapidly degraded by photochemical processes.
Key value for chemical safety assessment
Additional information
No data on the phototransformation in air are available for the mixture N3/N4 -amine. Therefore, the assessment is based on estimated data for the major constituents N-(2 -aminoethyl)-1,3 -propanediamine (CAS 13531 -52 -7), N,N'-bis(3 -aminopropyl)ethylenediamine (CAS 10563 -26 -5), ethylenediamine (CAS 107 -15 -3) , 1,3-propanediamine, N,N''-(iminodi-2,1-ethanediyl)bis-, (CAS 58214-71-4) as well as for the structurally similar substance trientine (CAS 112-24-3). The photodegradation potential was calculated with AOPWIN v1.92 (EPISuite v4.11); the results are summarized in the table below:
CAS # |
Transformation rates [cm3/molecule-sec] |
Half-lives in air [h] |
13531-52-7 |
149.2E-12 |
2.6 |
10563-26-5 |
234.9E-12 |
1.6 |
107-15-3 |
63.4E-12 |
6 |
58214-71-4 |
319.3E-12 |
1.2 |
112-24-3 |
232.1E-12 |
1.7 |
Based on the available calculated data for the read-across substances, the N3/N4 -amine mix is concluded to be rapidly degraded by photochemical processes.
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