Registration Dossier

Diss Factsheets

Environmental fate & pathways

Phototransformation in air

Currently viewing:

Administrative data

Link to relevant study record(s)

Description of key information

Rate constant:  14.5077 E-12 cm³/(molecule*sec) 
Degradation: 50% after 8.8 hours (0.74 days)

Key value for chemical safety assessment

Additional information

Alcohols, C8 -10 -iso, C9 -rich has the potential to degrade in the atmosphere from hydroxyl radical attack and photodegradation can be a predominant daylight atmospheric degradation process for this substance. The photodegradation half-life of this substance as mediated by OH-attack is estimated as 0.74 days or 8.8 hours based on a 12-hour sunlight day. The half-life is calculated for a 12 -hr day because it normalizes degradation to standard day-light period during which hydroxyl radicals needed for degradation are generated.