Determination of the Equilibrium Between Chlorine, Water, Hydrochloric Acid and Chloric Acid. The Free Energy of the Chlorate Ion.

Abstract

The first crystals formed in any solution contain more radium than any of the later crystals.The concentration of radium in the crystals increases with the time of crystallization for equal quantities of crystals from solutions of the same radium concentration.In neutral or alkaline solutions radium-barium crystals form extremely slowly upon cooling, supersaturation being noticeable. Acid in tlic soltltions seems to act as a catalyzer in forming crystals, supersaturation bcing less noticeable. Summary.Several systems of crystallizing a radium-barium solution arc givcn with a modified form that is very efficient in crystallizing high grade radium.'l'he bromide system is more eficient than the chloride system. Radium is much easier to separate from barium than formerly st~p-Several important conditions o€ crystallization are noted.posed.The object of this research was to determine the equilibrium constant, for which no direct measurements exist, of the following reaction:3Hz0 + 3 C l~ = HC103 + 5HCl(1)