ISSN print edition: 0366-6352 ISSN electronic edition: 1336-9075 Registr. No.: MK SR 9/7 Published monthly

Phase-diagram of the ternary-system urea-sodium thiocyanate-sodium-nitrate

M. Drátovský and J. Schejbal

Department of Inorganic Chemistry, Faculty of Natural Sciences, Charles University, CS-128 40 Prague

Abstract: Literature data on the binary systems CO(NH₂)₂—NaSCN, CO(NH₂)₂—NaN0₃, and NaSCN—NaN0₃ were verified and corrected. Using the DTA method, eight sections in the ternary system CO(NH₂)₂—NaSCN—NaN0₃ were investigated and the projection of the phase diagram of this system into the base was constructed. The experimental results are compared with the data calculated on the basis of knowledge of binary systems. The method of central projection and calculation based on application of the Haase model were used. Two new correlation methods based on the universal model for calculation of activities of components were proposed.

Full paper in Portable Document Format: 402a225.pdf

Chemical Papers 40 (2) 225–237 (1986)