Registration Dossier
Registration Dossier
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EC number: 227-105-6 | CAS number: 5657-17-0
Phototransformation in air
Administrative data
Link to relevant study record(s)
Description of key information
Phototransformation in air is no requirement under Reach.
Key value for chemical safety assessment
- Half-life in air:
- 2.385 d
Additional information
Based on a calculation according to AOPWIN v1.92, ethylenediaminediacetic acid (ED2A) is indirectly photodegraded by reaction with hydroxyl radicals in the atmosphere with a half-life (t1/2) of about 2.385 hours taking into account a 24-h day and a mean OH radical concentration of 0.5E06 radicals per cm³.
ED2A has a short predicted half-life in air but because there are no important releases into the atmosphere and volatilisation is expected to be negligible, this removal mechanism is thought to be of low relevance.
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