Registration Dossier
Registration Dossier
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EC number: 268-092-7 | CAS number: 68002-78-8 This substance is identified by SDA Substance Name: C16-C18 and C18 unsaturated trialkyl carboxylic acid trimethylolpropane triester and SDA Reporting Number: 11-015-00.
Phototransformation in air
Administrative data
Link to relevant study record(s)
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 Fatty acids, C16-18 and C18-unsatd., triesters with trimethylolpropane (CAS 68002-78-8) are not available. The evaluation of phototransformation is therefore based on calculated values for the single substance components C16 FA component, C18 FA component and C18:1 FA component of Fatty acids, C16-18 and C18 unsatd. The data on substance components is combined in a Weight of Evidence (WoE). The degradation rates were calculated using AOPWIN v1.92 (Blum, 2011). The estimated half-lives for the substance components ranged from 1.52 – 6.14 hours based on a 24 hour day (OH-concentration: 0.5E+06 OH/cm³). The data indicate that the substance will be rapidly photodegraded. 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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