ZIRCONIUM. III. INFLUENCE OF LITHIUM, RUBIDIUM, CESIUM AND MAGNESIUM UPON THE DETECTION OF POTASSIUM BY ZIRCONIUM SULFATE¹

Abstract

The acid produced in this way will absorb a small amount of moisture if exposed to the air.The mother liquors, which are occasionally dark colored, may be readilyWe have shown the availability of zirconium sulfate as a reagent for potassium in the presence of sodium2 and ammonium.3 The less frequently occurring members of the fifth group, rubidium and cesium, both interfere with the detection of potassium by sodium cobaltic nitrite, perchloric acid or chloroplatinic acid. Lithium can be separated from ions of these elements by perchloric acid or chloroplatinic acid. Tread-1 The authors are indebted to the Chemical Department of this University in that Professor Marion Hollingsworth of the Analytical Chemical Division of that Department furnished the rubidium and cesium chlorides used as the basis of part of this work.