Registration Dossier
Registration Dossier
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EC number: 618-804-0 | CAS number: 919-94-8
Phototransformation in air
Administrative data
Link to relevant study record(s)
Description of key information
The overall OH rate constant of TAEE due to photochemical oxidation reaction is 1.06E-11 cm3/mol.sec.
Key value for chemical safety assessment
- Half-life in air:
- 1.51 d
Additional information
In the troposphere TAEE is photochemically oxidised by hydroxyl radicals abstracting H atoms. The degradation half-life of TAEE in the air is calculated to be 1.01 days depending on environmental conditions (predominantly OH-radical concentration)(AOPWIN™ v1.92; U.S. EPA 2008a). The calculation is reliable, validated and falls within the applicability domain of the QSAR. Using a degradation rate constant of 1.06E-11 cm3/molecule.sec and an OH-radical concentration of 5E05 radicals/cm3 a half-life of 1.51 days is calculated. This half-life for degradation in air will be used in further assessment.
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