Registration Dossier

Environmental fate & pathways

Endpoint summary

Administrative data

Description of key information

Additional information

The soil sorption coefficient Koc of diisopropylbenzene was calculated using EPIWIN v3.20, PCKOCWIN v1.66. The calculation yielded a value of 4036 (log Koc=3.606) indicating a strong sorption onto soil organic matter. The calculation of Koc based on molecular connectivity indexes yielded a value of 4000 and indicates that a strong sorption of diisopropylbenzene onto soil organic matter is to be expected. Based on the calculated Henry's Law constants (>1000 Pa x m³/mole), it is to be expected that m- and p-diisopropylbenzene are highly volatile from aqueous solution. According to the Mackay Level III calculation, the main target compartment of the distribution is air (ca. 99%) if the chemical is released into the air. If the chemical is released to the hydrosphere, the main target compartments are water (ca. 20 -23%) and sediment (ca. 75 -80%) and if the chemical is released to soil, the chemical remains predominantly in the soil compartment (ca. 98%).