Registration Dossier
Registration Dossier
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EC number: 200-875-0 | CAS number: 75-50-3
Phototransformation in air
Administrative data
Link to relevant study record(s)
Description of key information
degradation rate constant with OH radicals of 69.8E-11 cm³/molecule*sec.
Key value for chemical safety assessment
- Half-life in air:
- 5.52 h
Additional information
Beside the key study, which used the computer tool AOPWIN v1.92a to calculate the half-life of trimethylamine in air, two additionally calculations were performed in this context. Atkinson (1986) calculated the half-life using hydroxyl radicals, resulting in a value of 4 hours (indirect photolysis). The other estimation was a calculation of the half-life in air for trimethylamine using an average atmospheric O3 concentration of 7 E-11 molecule/cu-cm. In this case 50 % degradation is expected after 1.2 days by indirect photolysis (Atkinson and Carter, 1984).
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