Hydrolytic reactions, description

Adachi and Mizushima [30] studied the deposition system DMTC + O2 + H2O in the 400-500 °C temperature range, hi the presence of water vapor, the deposition rate dependence on DMTC concentration increased from [DMTC] to [DMTC]° . They suggested that in the reaction of DMTC + O2, the rate-determining step is the oxidation of Sn-Cl bonds, while in the reaction of DMTC + O2 + H2O, the oxidation of Sn - CH3 bonds is rate determining. As will be seen below, this description of the chemistry is almost certainly incorrect (Sect. 5.2). They also reported an activation energy of 38 kcalmoC for the hydrolysis of DMTC (Fig. 7) and asserted that the hydrolytic decomposition of Sn - Cl bonds is much faster at these temperatures. 

The enormous number of chemical reactions and other chemical and physico-chemical interactions in waters considerably complicate their exact description. There are various co-existing dynamic equilibria in waters resulting from the protolytic, complex-forming, oxidation-reduction, polymerization, photochemical, hydrolytic, and other reactions. Inorganic and organic substances are determined in waters both quantitatively and qualitatively. The chemical characteristics and properties of water do not depend... 

Reagent Description. The reagent was conceived as an alternative to the widely used, but often inconvenient, Polyphosphoric Acid (PPA) (see also Polyphosphate Ester, PPE). Eaton s reagent successfully addresses the drawbacks of PPA s physical properties. It is much less viscous, and is, therefore, easier to stir. Organic compounds are generally soluble in Eaton s reagent, and the hydrolytic workup is less tedious. Reactions are run at ambient or slightly elevated temperatures. Standard aqueous workup is easy... 

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