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EC number: 206-596-0
CAS number: 355-93-1
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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