Registration Dossier
Registration Dossier
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EC number: 232-260-8 | CAS number: 7803-51-2
Phototransformation in air
Administrative data
Link to relevant study record(s)
Description of key information
Phosphine in air reacts with HOx radicals and is removed by this mechanism with a half time of
5 - 28 h depending on the conditions.
No direct photolysis with sunlight expected
Key value for chemical safety assessment
- Half-life in air:
- 28 h
- Degradation rate constant with OH radicals:
- 0 m³ molecule-1 s-1
Additional information
Several peer-reviewed sources indicate that Phosphine is rapidly photodegraded by reaction with hydroxyl radical.
The same half time values from 5h to 28h are mentioned, depending on the light conditions.
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