✦ LIBER ✦

Mean activity coefficients of NaCl in (sodium chloride  +  sodium bicarbonate +  water) fromT =  (293.15 to 308.15) K

✍ Scribed by Xiaoyan Ji; Xiaohua Lu; Weilu Lin; Luzheng Zhang; Yanru Wang; Jun Shi; Benjamin C.-Y. Lu

Publisher: Elsevier Science
Year: 2001
Tongue: English
Weight: 123 KB
Volume: 33
Category: Article
ISSN: 0021-9614
DOI: 10.1006/jcht.2000.0827

No coin nor oath required. For personal study only.

✦ Synopsis

The mean activity coefficients of NaCl in (sodium chloride + sodium bicarbonate + water) were determined experimentally in the temperature range 293.15 K to 308.15 K at four NaHCO 3 molality fractions (0.1, 0.3, 0.5, and 0.7). The measurements were made with an electrochemical cell, using a Na + glass ion-selective electrode and a Cl -solid-state ionselective electrode. The experimental values reported by Butler and Huston are found to be higher than those calculated from the Pitzer equation using the existing parameters while the experimental results of this work are close to the calculated values, up to an NaHCO 3 molality fraction of 0.5. At the NaHCO 3 molality fraction of 0.7, the experimental data are much lower than the calculated values, implying that the interference of HCO - 3 on the Na + glass ion-selective electrode can only be neglected up to a molality fraction of NaHCO 3 of 0.5, an observation which is consistent with that of Butler and Huston.

📜 SIMILAR VOLUMES

Activity coefficients of electrolyte and

Activity coefficients of electrolyte and amino acid in the systems (water  +  potassium chloride  + dl -valine) at T = 298.15 K and (water  +  sodium chloride  + l -valine) at T =  308.15 K

✍ A. Khavaninzadeh; H. Modarress; V. Taghikhani; M.K. Khoshkbarchi 📂 Article 📅 2002 🏛 Elsevier Science 🌐 English ⚖ 139 KB

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

Measurement and correlation of activity

Measurement and correlation of activity coefficients for (sodium bromide  +  lithium bromide  +  water) atT =  298.15 K

✍ Weidong Yan 📂 Article 📅 2000 🏛 Elsevier Science 🌐 English ⚖ 83 KB

Activity coefficients of sodium bromide in aqueous mixtures of sodium bromide and lithium bromide were determined by e.m.f. measurement at T = 298.15 K and at six different ionic strengths from (0.1 to 2.5) mol • kg -1 . The experimental results were fitted using the Scatchard-Rush-Johnson and Pitze

Isopiestic study of (calcium chloride &#

Isopiestic study of (calcium chloride  +  water) and (calcium chloride +  magnesium chloride  +  water) atT =  313.15 K

✍ J.Baabor S.; ; M.A. Gilchrist; ; E.J. Delgado 📂 Article 📅 2001 🏛 Elsevier Science 🌐 English ⚖ 75 KB

The osmotic coefficients of aqueous calcium chloride solutions were experimentally determined at T = 313.15 K by the isopiestic method. Magnesium chloride served as the isopiestic standard for the calculation of osmotic coefficients. The molality range covered in this study correspond to about 0.1 m

Hygrometric determination of the water a

Hygrometric determination of the water activities and the osmotic and activity coefficients of (ammonium chloride +  sodium chloride  +  water) atT =  298.15 K

✍ Abderrahim Dinane; Mohamed El Guendouzi; Abdelfetah Mounir 📂 Article 📅 2002 🏛 Elsevier Science 🌐 English ⚖ 201 KB

The mixed aqueous electrolyte system of ammonium and sodium chlorides has been studied by the hygrometric method at the temperature 298.15 K. The relative humidities of this system were measured at total molalities from 0.3 mol • kg -1 to 6 mol • kg -1 for different ionic-strength fractions of NH 4

Isopiestic studies on the saturated quin

Isopiestic studies on the saturated quinary systems { water  +  sodium chloride(sat) +  glycine(sat) +  sorbitol +  sucrose } and { water  +  sodium chloride(sat) +  barium chloride(sat) +  sorbitol +  sucrose } at the temperature 298.15 K: comparison with the ideal-like solution model

✍ Mei Wang; ; Hui Zhang; ; Dong-Mei Yang; ; Zhi-Chang Wang 📂 Article 📅 2001 🏛 Elsevier Science 🌐 English ⚖ 70 KB

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

Measurement and correlation of activity

Measurement and correlation of activity coefficients for the ternary system (sodium bromide  +  sodium acetate  +  water) at T =  298.15 K

✍ Weidong Yan; Rui Zhang; Ranran Fu; Shijun Han 📂 Article 📅 2002 🏛 Elsevier Science 🌐 English ⚖ 89 KB

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 • kg -1 . The experimental results were fitted using the Scatchard-Rush

Mean activity coefficients of NaCl in (sodium chloride &#xa0;+&#xa0; sodium bicarbonate&#xa0;+&#xa0; water) fromT&#xa0;=&#xa0; (293.15 to 308.15) K

✦ Synopsis

Mean activity coefficients of NaCl in (sodium chloride + sodium bicarbonate + water) fromT = (293.15 to 308.15) K