Registration Dossier
Registration Dossier
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EC number: 203-376-6 | CAS number: 106-23-0
Endpoint summary
Administrative data
Description of key information
Additional information
The photodegradation of 3,7-dimethyl-6-octenal (citronellal) in air by reaction with OH radicals and ozone was calculated using EPIWIN v3.12, AOPWIN v1.91. Based on a reaction rate constant k(OH)=120.8289 x 10E-12 cm³/molecule x sec (25°C) and a tropospheric OH radical concentration of 5 x 10E5 radicals/cm³ (24 -h day) a half-life t1/2=3.19 h was calculated. Based on a reaction rate constant k(O3)=43.00 x 10E-17 cm³/molecule x sec (25°C) and an ozone concentration of 7 x 10E11 molecules/cm³ a half-life t1/2=338.38 min was calculated. The results indicate that 3,7 -dimethyl-6 -octenal will be very quickly photodegraded in the atmosphere by reaction with OH radicals and ozone.
Due to the structural properties of the substance hydrolysis ist not expected.
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