Registration Dossier
Registration Dossier
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EC number: 203-856-5 | CAS number: 111-30-8
Phototransformation in air
Administrative data
Link to relevant study record(s)
Description of key information
After evaporation or exposure to the air, glutaraldehyde will be rapidly degraded by photochemical processes.
Key value for chemical safety assessment
Additional information
The tropospheric half-life of glutaraldehyde was estimated using the AOPWIN program from Meyland & Howard from the Syracuse Institute, version 1.92. This program estimates the rate constant for the atmospheric, gas-phase reaction between photochemically produced hydroxyl radicals and organic chemicals. The estimation methods used by the Atmospheric Oxidation Program are based upon the structure-activity relationship (SAR) methods developed by Atkinson and co-workers. The Atkinson calculation method sums up the reactivity towards OH radicals of all structural elements. Using a 12-hours day and a mean daily OH concentration of 0.5E6 OH/cm³ a half-life of 8.213 hours was assessed (overall OH rate constant: 46.89 E-12 cm³/molecule sec).
In conclusion, after evaporation or exposure to air, glutaraldehyde will rapidly be subjected to photochemical degradation processes.
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