Solubility investigations in the NaVO3 + NH4HCO3 + NH4VO3 + NaHCO3 + H2O system

• Autorzy: Trypuć M. , Kiełkowska U.
• Języki publikacji: EN

Abstrakty

EN

Mutual salts solubility in the NaVO3 + NH4HCO3 + NH4VO3 + NaHCO3 + H2O system at temperature 303 K and the carbonization degree (R) of 90% has been studied. On the basis of the compiled data, a solubility polytherm section in the oblique projection on plane according to Janecke has been plotted. It has been found out that ammonium metavanadate is a sparingly soluble salt, NH4VO3 and NaHCO3 compose the stable pair of salts, whereas the triple points P1, P2 are represented by solutions convergently saturated. A thorough knowledge of the solubility isotherm course for the reciprocal salt pairs system is essential for an elaboration of sodium carbonate production technology based on NaVO3 as an initial reactant.

Słowa kluczowe

EN

sodium metavanadate; ammonium metavanadate; sodium carbonate solubility; isotherm; equilibrium; carbonization degree

PL

badania rozpuszczalności

• Wydawca: West Pomeranian University of Technology. Publishing House
• Czasopismo: Polish Journal of Chemical Technology
• Rocznik: 1999
• Tom: Vol. 1, nr 1
• Strony: 40--44
• Opis fizyczny: Bibliogr. 20 poz., tab., wykr.

Twórcy

autor

Trypuć M.

autor

Kiełkowska U.

• Faculty of Chemistry, Nicolaus Copernicus University, 7 Gagarin St., 87-100 Toruń, Poland,