Registration Dossier
Registration Dossier
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EC number: 616-248-3 | CAS number: 75627-31-5
Phototransformation in air
Administrative data
Link to relevant study record(s)
Description of key information
Degradation rate constants and half-lifes have been calculated with Aopwin.
In the atmosphere the substance is likely to be degraded by reaction with hydroxyl radicals. The degradation rate was calculated with the Atmospheric Oxidation Program based on structure activity relationships developed by Atkinson (1987). With a concentration of 500,000 OH-radicals/cm3, a degradation half-live of 2.2 h was calculated for nonylphenol ethoxylate, sarcosine derivative. This corresponds to an overall OH rate rate constant of 174 * 10 ^-12 cm3 / molecule sec.
Because there are no important releases into the atmosphere and volatilisation is expected to be limited, this removal mechanism is thought to be of low relevance.
Key value for chemical safety assessment
- Half-life in air:
- 2.2 h
- Degradation rate constant with OH radicals:
- 0 cm³ molecule-1 s-1
Additional information
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