Vapor–liquid equilibrium studies of n-propanol–n-decanol mixtures

Abstract

Static vapor pressure measurements were made on mixtures of 11-propanol with TZ-decanol over the temperature range 2Q-50 "C. From the results, the molar excess Gibbs free energies were calculated. The applicability of the principle of congruence to these values and to similar data published previously for methanol-decanol and ethanol-decanol systems was examined.

Excess thermodynamic properties of isopropanol–n-decanol mixtures

“…For the present system, values of HE at 25 "C calculated from tlie free energy data are all larger than the calorimetric results; the difference amounts to 58 J mole-' for an equimolar solution. Similar discrepancies were noted for the ethanol-decanol and n-propanol-decanol systems (3,4). Accordingly the TSE curve showl~ in Fig.…”

“…Previous studies of the thermodynamic properties of binary alcohol illixtures (1)(2)(3)(4)(5) have been continued by investigating the systeni isopropanol-?I-decanol. The new measurements comprise determinations of total vapor pressures over the range 20-50 "C and of heats and volun~es of mixing at 25 "C.…”

Vapor-Liquid Equilibria for Methanol + Ethanol + Calcium Chloride, + Ammonium Iodide, and + Sodium Iodide at 298.15 K

“…For the purpose of removing of moisture contained in the salt, CaCU was dried by heating at 573 K for more than 24 h. NH4I and Nal were dried by heating at 353 K for 3 h. Water was purified by use of Milli-Q Labo manufactured by Millipore Ltd., after distillation and ion exchange. [6][7][8][9] within an accuracy of ±1.5%. The reproducibility was within ±0.6%.…”

Vapor−Liquid Equilibrium of Propan-2-ol + Propan-1-ol + Sodium Iodide at 298.15 K

“…The measured vapor pressures of pure solvents (propan-1-ol and propan-2-ol) are presented in Table 2 with literature values (Singh and Benson, 1968;Singh et al, 1969). The deviations of the vapor pressures from the literature values are 0.11% for propan-1-ol and -1.14% for propan-2-ol.…”