Registration Dossier
Registration Dossier
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EC number: 203-624-3 | CAS number: 108-87-2
Endpoint summary
Administrative data
Description of key information
Additional information
Due to the high volatilization potential of methylcyclohexane the target compartment for environmental distribution will be air, where it is subject to atmospheric oxidation (AOPWIN v1.92, half time for the reaction with OH-radicals is 37.9 hours; 24 h day; OH-concentration: 0.5E+06 OH/cm3). The Guidance on information requirements and chemical safety assessment Chapter R.11: PBT Assessment (ECHA, 2014) states that: “If the substance has a half-life in air < 2 days it is not expected to stay in the atmosphere for long as it will degrade rapidly. Thus there will be a limited potential for long range atmospheric transport“. Based on this Methylcyclohexane is regarded as rapidly degradable in air as the half-life for indirect photodegradation is below < 2 days. Therefore, abiotic degradation processes in air may represent a very important environmental sink for this substance. Due to its chemical composition, methylcyclohexane is no subject to hydrolysis.
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