Thesis in Chemistry [Double Cesium and Rubidium Salts of Lead Tetrabromide]
Description
The title page of this thesis simply labels this as a Thesis in Chemistry. Salts in which lead is quadrivalent are comparatively unstable and usually they readily pass over into the corresponding compounds in which the lead is divalent. Salts of Hexa-chloroplumbic acid 2Hcl. Pb cl4 are known and may be prepared from a solution of lead chloride in concentrated hydrochloric acid in which there is an exces s of chlorin. If Cesium. Chloride is added to this solution the double salt 2CsCl Pb Cl4 c rystalizes out. This double salt may also be formed similarly from a solution of lead dioxide at a temperature below zero. Under these conditions lead tetra chloride is formed. [From the introductory section]