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Registration Dossier
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EC number: 236-050-7 | CAS number: 13122-18-4
Adsorption / desorption
Administrative data
Link to relevant study record(s)
Description of key information
As tert-Butylperoxy-3,5,5-trimethylhexanoat is not stable under the conditions of a Koc test and due to its low water solubility, the log Koc value of tert-Butylperoxy-3,5,5-trimethylhexanoat was calculated using EPIWIN (v. 4.00). For tert-Butylperoxy-3,5,5-trimethylhexanoat the log Koc was estimated to be 3.13 and 2.642 for Kow method and MCI method, respectively (KOCWIN v.2.00, see Annex I). The Koc was estimated to be 1348 L/kg (Kow method) and 438 L/kg (MCI method).
Key value for chemical safety assessment
- Koc at 20 °C:
- 1 349
Additional information
The test method for determination of the adsorption coefficient (Koc) of a substance as described for liquid materials in Test Guideline C.19 of EC Regulation 440/2008 was replaced by a model calculation as tert-Butylperoxy-3,5,5-trimethylhexanoat is not stable under the conditions of a Koc test and due to its low water solubility.
The log Koc value of tert-Butylperoxy-3,5,5-trimethylhexanoat was calculated using EPIWIN (v. 4.00). For tert-Butylperoxy-3,5,5-trimethylhexanoat the log Koc was estimated to be 3.13 and 2.642 for Kow method and MCI method, respectively (KOCWIN v.2.00, see Annex I). The Koc was estimated to be 1348 L/kg (Kow method) and 438 L/kg (MCI method).
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