Zur Kristallographie von Doppelsalzen aus Calciumsulfat und Natriumsulfat

Abstract

I n the course of investigating a special slurry problem in the N+.SOI production metastable double salts of calcium sulphate and sodium sulphate were detected (EMONS, STEGMANN). In this paper it is reported on the properties of these compounds and their decomposition products, determined by microscopic, X-ray, thermoanalytic, and IR-spectroscopic methods.