Open AccessThe relation of thallium to the alkali metals: a study of thallium sulphate and selenate
Publication year - 1907
Publication title -
proceedings of the royal society of london. series a, containing papers of a mathematical and physical character
Language(s) - English
Resource type - Journals
eISSN - 2053-9150
pISSN - 0950-1207
DOI - 10.1098/rspa.1907.0046
Subject(s) - selenate , thallium , rubidium , alkali metal , chemistry , selenium , orthorhombic crystal system , potassium , inorganic chemistry , sodium selenate , ammonium , nuclear chemistry , crystallography , crystal structure , organic chemistry
In this communication are given the results of a crystallographical investigation of the normal sulphate Tl2 SO4 and selenate Tl2 SeO4 of thallium, similar to the author’s previous researches on the normal sulphates and selenates of the alkali metals, potassium, rubidium, and cæsium, and of ammonium.* It thus completes the work commenced in the year 1893 on the series of normal sulphates and selenates R2 S Se O4 . Crystals of thallium sulphate, prepared by Lamy, were investigated in 1863 by von Lang,† who found them to be orthorhombic and isomorphous with those of potassium sulphate. The selenate does not appear to have been previously investigated, except that it was considered by Kuhlmann,‡ and from preliminary observations of Des Cloiseaux and v. Lang, to be also isomorphous with potassium selenate, and that the molecular volume was determined by Petterssen.