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Environmental fate & pathways

Phototransformation in air

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Description of key information

Phototransformation in air is not relevant due to low vapour pressure (< 0.0001 Pa).

Key value for chemical safety assessment

Additional information

Experimental results on phototransformation of 1,2,3-propanetriyl triisooctadecanoate (CAS 26942-95-0) are not available. Calculated values using AOPWIN v1.92 indicate that the substance will be rapidly photodegraded by reaction with hydroxyl radicals (Birkhofer, 2014). The estimated half-life of the substance is 5.3 hours. However, due to the low vapour pressure (< 0.0001 Pa, SPARC v 4.6 calculation) the substance is not expected to exist in the vapour phase of the atmosphere.