Liquid−Liquid and Solid−Liquid Equilibrium of the Ternary System Ethanol + Cesium Sulfate + Water at (10, 30, and 50) °C

Abstract

The phase diagrams of the CH 3 CH 2 OH + Cs 2 SO 4 + H 2 O system were determined at (10, 30, and 50) °C. The binodal curves were given using a five-parameter equation. The tie lines were correlated by the Othmer-Tobias and Bancroft equations. Samples of the solid phase analyzed by thermogravimetric analysis showed that it was the anhydrous salt.

Novel aqueous two-phase systems based on tetrahydrofuran and potassium phosphate buffer for purification of lipase

“…The binodal curve, tie-lines and critical points were determined for the studied system. Additionally, the binodal data were correlated using the Merchuk [29] or Hu [30] equations. Aiming at exploring the applicability of those ATPS it is here shown, for the first time, the ability of THF based systems for the purification of lipase.…”

Phase Equilibria of Alkali Nitrates (NaNO3, KNO3, RbNO3, CsNO3) in Glycerol + H2O System at Various Temperatures

“…A detailed description of the equipment used in this paper has been presented in former work. 9 All the samples were prepared by mass using an analytical balance with precision of Refractive indices and densities of the solutions were determined using RXA 170 refractometer and DMA 4500 vibrating tube densimeter (Anton Paar) with precision of ± 4 × 10 −5 and 1 × 10 −5 g cm −3 , respectively. Both instruments were calibrated prior to initiation of each series of measurements, using air and deionized distilled water as reference substances.…”

“…8 In previous work, our research groups have focused on the physical-chemical properties of rare alkali metal (Rb and Cs) salts + alcohol/PEG (polyethylene glycol) + water systems. [9][10][11][12] As a continuation of our work in this field, this paper presents the systematic study we carried out on the properties, including solubility, density and refractive index of the ternary systems of NaNO 3 /KNO 3 /RbNO 3 /CsNO 3 + glycerol [CH 3 CH(OH)CH 2 OH] + H 2 O at 35 and 45 °C. The data for the saturated systems were measured and correlated with an empirical equation.…”

Rb+ Uptake by Human Erythrocytes and Its Transmembrane Pathway

“…The linear relative rate R＞0.99 indicates that the Rb ＋ uptake followed a first-order kinetic process during the beginning 2 h of the reaction, which can make it sure that the uptake of Rb ＋ process took a simple diffusion pathway. 9 The slope of this straight line is the Rb ＋ transmembrane rate k＝5.025× 10 -2 min -1 . After 2 h, the increase rate of m in became slower and finally saturated kinetic characteristic appeared ( Figure 4).…”