Registration Dossier

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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.

The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.

Diss Factsheets

Environmental fate & pathways

Endpoint summary

Administrative data

Description of key information

Additional information

Two experimental studies according to OECD 301B confirmed that isodecyl pivalate (CAS 60209-82-7) is not readily biodegradable according to the OECD criteria (34 - 35.4% biodegradation after 28 d). The degradation via abiotic hydrolysis is not considered to be a relevant degradation pathway in the environment since QSAR calculations obtained using HYDROWIN v2.00 resulted in DT50 values > 1 yr at pH 7. Considering the low water solubility (< 0.05 mg/L) of isodecyl pivalate and the considerable potential for adsorption to organic soil and sediment particles (log Koc: 2.82 - 3.39), the main compartments for environmental distribution are expected to be soil and sediment. However, the release of the substance to the environment after passing through conventional Sewage Treatment Plants (STPs) is expected to be low. The Guidance on information requirements and chemical safety assessment, Chapter R7.b (ECHA, 2012) states that once insoluble chemicals enter a standard STP, they will be extensively removed in the primary settling tank and fat trap and thus, only limited amounts will get in contact with activated sludge organisms. Nevertheless, once this contact takes place, these substances are expected to be removed from the water column to a significant degree by adsorption to sewage sludge (Guidance on information requirements and chemical safety assessment, Chapter R.7a, (ECHA, 2012). Thus, discharged concentrations of this substance into the aqueous/sediment and soil compartment (via water) are likely to be (if at all) low. Evaporation from the water phase into air and transport through the atmospheric compartment is not expected in significant amounts for isodecyl pivalate based on the low vapour pressure of 0.17 Pa at 20 °C. However, if released into air, isodecyl pivalate is susceptible to undergo indirect photodegradation by reaction with OH-radicals, with a DT50 value of 28.44 h (AOPWIN v1.92). Therefore, the potential for accumulation in air and the subsequent transport to other environmental compartments is low. The potential for bioaccumulation of isodecyl pivalate is assumed to be low based on the calculated BCF values ranging from 202 to 241.5 L/kg (BCFBAF v3.01).