Isopiestic measurements have been carried out at the temperature 298.15 K for two saturated quinary aqueous solutions: (water + sodium chloride + glycine + sorbitol + sucrose) saturated with sodium chloride and glycine and (water + sodium chloride + barium chloride + sorbitol + sucrose) saturated wi
Isopiestic studies on the quaternary system (water  +  methanol +  sodium bromide  +  ammonium bromide) at the temperature 298.15 K: comparison with the ideal-like solution model
โ Scribed by Mei Wang; Dong-Mei Yang; Shu-Ping Sun; Zhi-Chang Wang
- Publisher
- Elsevier Science
- Year
- 2000
- Tongue
- English
- Weight
- 64 KB
- Volume
- 32
- Category
- Article
- ISSN
- 0021-9614
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โฆ Synopsis
Isopiestic measurements have been carried out for the quaternary system (water + methanol + sodium bromide + ammonium bromide) with the mass ratios of water : methanol = 9 : 1 and 4 : 1 at the temperature 298.15 K. The results fit the ideal-like solution model within experimental errors.
๐ SIMILAR VOLUMES
Activity coefficients of sodium bromide in aqueous mixtures of sodium bromide and sodium acetate were determined by e.m.f. measurements at T = 298.15 K and the total ionic strengths of (0.1, 0.5, 1.0, 1.5, 2.0, 2.5, and 3.0) mol โข kg -1 . The experimental results were fitted using the Scatchard-Rush
Isopiestic measurements have been made for the systems {NaCl + BaCl 2 + mannitol (sat) (aq)} and {KCl + glycine + mannitol (sat) (aq)} at T = 298.15 K. The results agree well with the linear relations for the saturated systems published previously and indicate that if the unsaturated subsystem {(B +
The activity coefficient data were reported for (water + potassium chloride + DL-valine) at T = 298.15 K and (water + sodium chloride + L-valine) at T = 308.15 K. The measurements were performed in an electrochemical cell using ion-selective electrodes. The maximum concentrations of the electrolytes
Liquid + liquid) equilibrium tie-lines were measured for the two quaternary systems = 101.3 kPa. The experimental (liquid + liquid) equilibrium results have been satisfactorily correlated by modified and extended UNIQUAC models both with ternary and quaternary parameters in addition to binary ones.
Isopiestic measurements have been carried out for the ternary system methanol q sodium . bromide q ammonium bromide at the temperature 298.15 K. The results fit the partial ideal solution model within experimental errors.