Studies of the polyanions and polycations by Glauber's-salt cryoscopy. Part II. Polycations of uranium

Abstract

Depression in the transition temperature of Glauber's salt owing to the presence of U 0 2 ? + and other polycations of uranium formed by the hydrolysis of U022+ have been measured a t different pH. The average degree of condensation calculated from these measurements appear to confirm the existence of the polycations with the general formula UO2[(OH),UO2],,2+ with ii increasing rapidly above pH 5.

Localization of cation interactions in the smooth muscle of the guinea‐pig taenia coli

“…In aqueous solutions uranyl ions can form polynuclear complexes with the general formula U02 ((OH)2UO2) + (Ahrland, Hietanen & Sillena, 1954). Above pH 5 the value of n increases with increasing pH (Jain, Jain & Vaid, 1967), and at pH values above 6-5 this value becomes so large that the uranyl solutions begin to precipitate. P. J. GOODFORD AND M. W. WOLOWYK Such complex formation does not occur with the other heavy metal cations which were studied in the preliminary experiments, and this may explain why they could not be visualized at the cell membrane surfaces.…”