Fig. 5

The effect of initial pH on the steady-state pH measured after long-time prehydrolysis. The dashed line represents the toy model with the equilibrium constant given in the text previously. The value of K _m is not stated in the text and is taken to be small. For practical purposes \(K_{\rm {m}}=10^{-17}\,{\rm M}\) for this calculation. The two remaining parameters are set to be \({[\mathrm{{XOAc}}]}_o=0.025\,{\rm M}\) and \({[\mathrm{{MO}}]}_o=0.001\,{\rm M}\) and were determined through regression. Series 11 represents the reaction at 160 °C and series 12 at 180 °C