Long-chain Phosphates. I. Reactions of Solid Potassium Kurrol Salt with Solutions of Various Metal Salts

Pure crystalline potassium Kurrol salt was prepared and its X-ray pattern was compared with that obtained by Klement et al. The solubility of the potassium Kurrol salt in water was 0.007∼0.009 per cent at room temperature. Qualitative observation was made for the reactions of the potassium Kurrol salt with various metal ions. Therefore was an optimum concentration of sodium chloride to dissolve the potassium Kurrol salt. The investigation of reactions of the potassium Kurrol salt in a solid state with solutions of nickel sulfate indicated that the reaction is a cation-exchange reaction between potassium and nickel ions. It was also found that the reaction is reverssible. The nickel-substituted product is green-colored and gummy. Some properties of the substances obtained by heating the above green product were studied. Exchange reactions of potassium Kurrol salt with various metal ions were investigated. Percentages of exchange for magnesium, calcium, manganese(II), iron(II), cobalt(II), nickel(II), copper(II) and zinc were all in the range 82 to 94 under the conditions used in the present work.