Neptunium vn

The oxidation of thallium(i) by neptunium(vn) has been investigated, an acidity dependence of the rate constant being observed. 

Actinides.— A kinetic study has been made of the reduction of neptunium(vn) and americium(vi) by bromide ion. In both cases two moles of oxidant are consumed in the production of a mole of Brj. The rate law governing the neptunium(vii) reduction is of the form... 

The subsequent reaction between hypobromite and bromite has been shown to be rapid, requiring fast reaction techniques for its characterization. The oxidation of neptunium(vi) by hypobromite has been studied in alkaline media, stable neptunium(vn) salts being formed. There is a rate dependence on hydroxide ion concentration, and nickel(n), cobalt(n), or copper(n) ions increase the reaction rate whereas silver(i) or iron(ii) have no effect. 

A kinetic investigation has been made of the oxidation of formic acid by neptunium(vn) in aqueous perchlorate solutions ... 

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