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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

No experimental studies investigating the phototransformation in air offatty acids, C8-10, tetraesters with pentaerythritol (CAS 85586-24-9)are available. Results from AOPWIN v1.92 indicate that the substance is susceptible to indirect photodegradation in air (Hinze, 2012). The estimated half-life for the reaction with OH-radicals is in the range of 8.03 - 10.51 h (24 h day; OH-concentration: 0.5E+06 OH/cm³). However, this is not expected to be a relevant environmental fate process, since the substance is not expected to be present in the atmosphere based on the low estimated vapour pressure under ambient conditions(= 8.41E-18 - 1.42E-013 Paat 20 °C). As this study is not a standard information requirement in REACh and there is no indication from the Chemical Safety Assessment (CSA) on the need to investigate further the fate and behaviour of the substance (Annex X requirement), no further testing is considered necessary for the substance.

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