Densities of the Ternary Systems Y(NO₃)₃+ La(NO₃)₃+ H₂O, La(NO₃)₃+ Ce(NO₃)₃+ H₂O, and La(NO₃)₃+ Nd(NO₃)₃+ H₂O and Their Binary Subsystems at Different Temperatures

Abstract

Densities were measured for the ternary systems Y(NO3)3 + La(NO3)3 + H2O, La(NO3)3 + Ce(NO3)3 + H2O, and La(NO3)3 + Nd(NO3)3 + H2O and their binary subsystems at (293.15, 298.15, and 308.15) K. The results were used to test the applicability of simple equations for the density of the mixed solutions. The predictions of the simple equations agree well with measured values, indicating that the densities of the examined electrolyte solutions can be well predicted from those of their constituent binary solutions by the simple equations.

Viscosities of the Ternary Systems Y(NO3)3 + Ce(NO3)3 + H2O, Y(NO3)3 + Nd(NO3)3 + H2O, and Ce(NO3)3 + Nd(NO3)3 + H2O and Their Binary Subsystems at Different Temperatures and Atmospheric Pressure

“…The binary solutions were prepared by the method of Spedding et al 17 Therefore, each rare earth nitrate was dissolved into double-distilled deionized water to prepare the stock solution. 12,18 The resulting solutions were adjusted to their equivalent concentrations with dilute HNO 3 solutions and then reheated and readjusted until stabilized. 12,17,18 The molalities of rare earth nitrate stock solutions were analyzed by both ethylenediaminetetraacetic acid (EDTA) 12,18,19 and sulfate methods.…”

“…12,18 The resulting solutions were adjusted to their equivalent concentrations with dilute HNO 3 solutions and then reheated and readjusted until stabilized. 12,17,18 The molalities of rare earth nitrate stock solutions were analyzed by both ethylenediaminetetraacetic acid (EDTA) 12,18,19 and sulfate methods. 12,17,18 The stock solution concentrations were determined with an accuracy of ≤0.10 %.…”

“…12,17,18 The molalities of rare earth nitrate stock solutions were analyzed by both ethylenediaminetetraacetic acid (EDTA) 12,18,19 and sulfate methods. 12,17,18 The stock solution concentrations were determined with an accuracy of ≤0.10 %. 12,18,19 Secondary stock solutions of low and moderate concentrations were prepared from weighed quantities of a primary stock solution and double-distilled deionized water using a Sartorius CT225D balance with the precision of ± 5•10 −5 g. 12,16,18 The ternary solutions were prepared by mixing the binary solutions (the mass of each binary solution is more than 20 g).…”

“…12,17,18 The stock solution concentrations were determined with an accuracy of ≤0.10 %. 12,18,19 Secondary stock solutions of low and moderate concentrations were prepared from weighed quantities of a primary stock solution and double-distilled deionized water using a Sartorius CT225D balance with the precision of ± 5•10 −5 g. 12,16,18 The ternary solutions were prepared by mixing the binary solutions (the mass of each binary solution is more than 20 g). 20 The uncertainties in the compositions of the prepared solutions due to errors in the weights of binary solutions were estimated to be less than ± 5•10 −5 mol•kg −1 .…”