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

Influence of temperature, vanadium concentration, and degree of solution acidification on composition of the solid products. 11. Products of the reactions taking place in acidified solutions of potassium meta-vanadate

Ľ. Ulická

Department of Inorganic Chemistry, Faculty of Natural Sciences, Comenius University, CS-84215 Bratislava

Abstract: The influence of temperature, vanadium concentration, acidity of reac­tion solution, and reaction time on composition of the products obtained from the KV0₃ — HN0₃ — H₂0 system was investigated. It has been estab­lished that K₂V₆0₁₆, KHV₆0_I6.3H₂0, and K₂V₆0₁₆-2H₂0 arise under theexamined reaction conditions. The degree of acidity of solution has the most significant influence on composition of the products obtained from solutions within the range from 40 °C to 80 °C. At the temperature of 22 °C, the reaction time also becomes significant. The purity of the prepared K₂V₆0₁₆-2H₂0 was verified by differential thermal analysis.

Full paper in Portable Document Format: 412a195.pdf

Chemical Papers 41 (2) 195–202 (1987)