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Environmental fate & pathways

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REACH regulation requires an assessment of the hydrolytic stability of the substance as part of the environmental stability hazard assessment; further studies can be provided if necessary. The rate of hydrolysis of OFPMA as a function of pH was determined according to OECD Guideline 111 and was found to be fast, with half lives of 2.7 days for pH 4, 4.1 days for pH 7, and 3.9 hours for pH 9 at 20°C, using second order kinetics. The products of the hydrolysis were confirmed with NMR analysis to be octafluoropentanol and methacrylic acid. Investigation into further forms of environmental stability are not required.

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