Abstract
In the presence of a variety organic solutes, mercuric chloride is reduced to mercurous chloride and HCl in aqueous solutions. G(HCl) values in dilute solutions (0.001 M HgCl 2 and 0.01 M organic) for a series of alcohols, acetaldehyde, acetone and acetonitrile lie within the approximate range of 3–6 molecules per 100 eV. The value depends upon the reactivity toward HgCl 2 of the radical product formed by reaction of OH with organic component. The results show a decreasing reactivity as the radical site is farther displaced from the α-carbon atom. At high concentrations (0.1 M HgCl 2 and 1 M organic) chain reactions occur in most of the systems with G(HCl) values increasing with decreasing dose rate. Evidence is presented for an involvement of colloidal Hg 2Cl 2 in the reaction chains.
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