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Plotting of the solubility isotherm for the NH4NO3+ NaVO3+ H2O system

100%
Trypuć M., Drużyński S., Mazurek K.
Polish Journal of Chemical Technology
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2008
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vol. 10
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issue 4
11-14
EN
The equilibrium research was performed for the NH4NO3 + NaVO3 + NH4VO3 + NaNO3 + H2O system at 293 and 303 K. The location of the P1 and P2 triple points was determined on the equilibrium plots with the planar projection according to Jänecke method. The maximum yield of the conversion of ammonium nitrate(V) to ammonium vanadate(V) was calculated at P1 points. The results constitute the basis to design further equilibrium experiments aimed to precisely determine the lines separating the areas of the co-crystallization of salts in the investigated system on the equilibrium plots in the oblique projection on a plane according to Jänecke method.
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The influence of urea on the K2CO3and NH4VO3solubility in the K2CO3+ NH4VO3+ H2O system

86%
Kiełkowska U.
Polish Journal of Chemical Technology
|
2008
|
vol. 10
|
issue 4
25-27
EN
The influence of urea on the vanadium(V) and potassium ion concentrations in the K2CO3 + NH4VO3 + H2O system was determined in the temperature range of 293 K to 313 K. Additionally, the solution density dependence versus the urea concentration was presented. These data are essential for the assessment of optimum operating conditions for the new production process of potassium carbonate.
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