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Environmental fate & pathways

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There are no experimental data on transport and distribution of cyclohexyl methacrylate available. The adsorption coefficient and Henry's Law constant can be calculated by validated Q(SAR) such as EPI Suite v4.00. Based on an estimated log Koc of 2.27, no significant adsorption to solid soil phase is expected. Henry's Law Constant was calculated to be 25.96 Pa*m³/mol. Calculation of Henry´s Law constant based on measured water solubility and vapour pressure resulted in a slightly higher value, H = 34.07 Pa*m³/mol. Therefore, cyclohexyl methacrylate is expected to slowly evaporate from the water surface into the atmosphere.

Distribution modeling using Mackay Level I indicates that cyclohexyl methacrylate is likely to partition to the air compartment (90.6 %) with the remainder partitioning into water (7.71 %); negligible amounts are predicted to occur in other environmental compartments (soil, sediment) (Level I Fugacity, 2010). Based on the physical chemical properties of cyclohexyl methacrylate, atmosphere and water are the main target compartments for distribution.