Henry’s Law Constant of Nitrogen, Oxygen, and Argon in Ternary Aqueous Alcoholic Solvent Mixtures

Abstract

Henry's law constant data for nitrogen, oxygen and argon in the ternary liquid mixture water+methanol+ethanol as well as its pure and binary solvent subsystems are reported. The composition and temperature dependence of the Henry's law constant of the air components in these solutions is investigated by Monte Carlo simulation. The underlying molecular force field models are based on the modified Lorentz-Berthelot combining rules that contain one binary interaction parameter, which is mainly taken from preceding work. Predictions from the molecular models for the pure and binary solutions are convincingly compared to experimental literature data, where available. This finding gives confidence that the Henry's law constant for the ternary solution is predicted appropriately. Based on an extensive molecular simulation data set, correlations are established for the Henry's law constant between 274.15 and 473.15 K.

Nanostructures wetting evaluation using ultra high frequency ultrasound

“…The general trend of the plot for all the DTI samples was an increase in the wetted surface as the ethanol concentration increases in the mixture except for the points corresponding for 80 % ethanol and the pure (100%) ethanol for which we can observe a decrease that was surprising. Considering the scientific literature about solubility of nitrogen and oxygen, the main constituents of air (21% oxygen and 78% nitrogen) in water or ethanol, it is found to be higher in ethanol than in water 26,27,28 for both gases. Thus, the diffusion of air in the pure ethanol should be higher than the 80% ethanol / water mixture.…”

The Role of Preservatives and Multifunctionals on the Oxidation of Cosmetic O/W Emulsions

“…Although a slight increase in oxygen was measurable in the vials, oxidation was assumed to be not strong enough to compensate for this increase. The low oxygen uptake can be caused by the polarity change due to the high concentration of added ethanol since the ethanol content in the water phase has an influence on the solubility of oxygen [65,66]. As the transfer of oxygen through the water phase to the micelles is the limiting factor for oxidation, an altered oxygen solubility could have an impact on oxidation.…”

Vapor–Liquid Equilibria of Mixtures Containing Ethanol, Oxygen, and Nitrogen at Elevated Pressure and Temperature, Measured with In Situ Raman Spectroscopy in Microcapillaries

“…Figure 12. Comparison of derived Henry coefficients with molecular simulation literature data of Schnabel et al16 (adjusted and predictive mode) and Malviya et al27 …”

“…Literature Data and Consistency Test. Schnabel et al, 16 as well as Malviya et al 27 published solubility data of the binary system ethanol/oxygen obtained by molecular simulation. For comparison with these literature data Henry coefficients can be derived by an approach used by Merker et al, 28 given in eq 19.…”