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Environmental fate & pathways

Phototransformation in air

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Description of key information

Half time for indirect photodegradation: 37.9 h (24h day; OH-concentration: 0.5E+06 OH/cm3)

Key value for chemical safety assessment

Half-life in air:
37.9 h

Additional information

Methylcyclohexane (CAS No. 108 -87 -2) has the potential to volatilize to air, based on a relatively high vapor pressure, where it is subject to atmospheric oxidation. Based on a QSAR calculation for methylcyclohexane using AOPWIN v1.92, the substance is susceptible to indirect photodegradation in air. The estimated half time for the reaction with OH-radicals is 37.9 hours (24 h day; OH-concentration: 0.5E+06 OH/cm3). Therefore, indirect photodegradation may be an important environmental fate process for this substance.