SEPARATION OF BARIUM FROM STRONTIUM USING COMPLEXONE III. A SULPHATE METHOD FOR SEPARATING ALKALINE EARTH ELEMENTS

A method was developed for separating Ba and Sr as sulfates in solutions containing complexone Hf at pH 6.4 to 6.8. The method was tested on synthetic mixtures of salts for 5 to 50 mg of Ba and Sr and their ratios from 1: 10 to 10: 1. A sulfate method was suggested for separating Ba, Sr, and Ca in complexone- containing solutions. A method is also described for the separation and determination of small amounts of Ba and Sr in rocks. (auth)