An isopiestic study of {(1 - y)NaHSO4 + yNa2SO4}(aq) at elevated temperatures
β Scribed by H.F. Holmes; R.E. Mesmer
- Publisher
- Elsevier Science
- Year
- 1994
- Tongue
- English
- Weight
- 350 KB
- Volume
- 26
- Category
- Article
- ISSN
- 0021-9614
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Isopiestic molalities of LiHSO4(aq), KHSO4(aq), and CsHSO4(aq) have been measured over the temperature range 383.46 K to 498.19 K with NaCl(aq) serving as the reference electrolyte for the calculation of excess thermodynamic quantities. Molalities of the reference electrolyte ranged from about 0.5 m
Isopiestic molalities of aqueous solutions of the alkali metal bromides have been measured at T s 383.15 K to T s 498.15 K. Aqueous NaCl served as the isopiestic standard for the calculation of osmotic coefficients. The ion-interaction model gave an excellent fit to the experimental osmotic coeffici
In the mixed electrolyte solution {xK2SO4 + (1-x)MgSO4}(aq), the osmotic coefficients have been measured by the isopiestic method at the temperature 298.15 K. Scatchard's neutral-electrolyte method and Pitzer-Kim's treatment were used for the activity coefficients of the K2SO4 and MgSO4 calculation.
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Isopiestic vapor-pressure measurements were made for Rb 2 SO 4 (aq) from molality m = (0.16886 to 1.5679) mol β’ kg -1 at T = 298.15 K and from m = (0.32902 to 1.2282) mol β’ kg -1 at T = 323.15 K, and for Cs 2 SO 4 (aq) from m = (0.11213 to 3.10815) mol β’ kg -1 at T = 298.15 K and from m = (0.11872 t