Solubility of ammonia in chloroform: analysis in terms of Henry's law and the equilibrium constant for hydrogen-bonded complex formation

Abstract

. 67,2213 (1989). We have measured the solubility of ammonia in chloroform at several pressures and at three temperatures (25,30, and 35°C). Results of these measurements have been analysed in terms of the Henry's law constant that applies to "simple" dissolution of the type B(g) = B(disso1ved) and the equilibrium constant K for the liquid phase complex-forming equilibrium represented by A + B = AB where A and B represent chloroform and ammonia, respectively. As expected on the basis of this analysis, ammonia is more soluble (same pressure and temperature) in chloroform than in carbon tetrachloride, where no hydrogen-bonded complex can be formed.Key words: gas solubility, hydrogen-bonded complexes, Henry's law constant, ammonia-chloroform complex, chloroformammonia complex. Mots clks : solubilit6 des gaz, complexes par liaisons hydrogknes, constante de la loi de Henry, complexe ammoniac-chloroforme, complexe chlorofome-ammoniac.[Traduit par la revue] Introduction Analyses of the thermodynamic properties of non-electrolyte solutions are generally made by comparing the measured properties with the properties the solution would have if it were ideal. Attempts are then made to explain the observed deviations in terms of some model (or theory) of solutions. As a first step in the development of such a model it is often convenient to separate the deviations from ideality into "physical" and

Evaluations of the Peroxidative Susceptibilities of Cod Liver Oils by a 1H NMR Analysis Strategy: Peroxidative Resistivity of a Natural Collagenous and Biogenic Amine-Rich Fermented Product

“…It has been previously reported that the mole fraction solubility of ammonia (as NH 3 ) in chloroform is 0.1-0.2, with ca. 70% of it being in the free form, and the remainder as a 1:1 H-bonded complex with this solvent [58]. Therefore, it is anticipated that NH 3 will also have significant solubility in edible oils, such as CLOs.…”

Partial molar volumes of acidic gases in physical solvents and prediction of solubilities at high pressures

“…complexes are formed can involve explicit recognition of the complex by way of an appropriate equilibrium constant, as done previously for volumes of SO, in various solvents (1 1) and for solubilities of NH3 in HCC1, (15).…”

Design, Synthesis, and Docking Study of Acyl Thiourea Derivatives as Possible Histone Deacetylase Inhibitors with a Novel Zinc Binding Group

“…This reaction was carried out in a Drechsel gas bottle [34], containing a chloroform solution of 4f or 5f and equipped with a stirring bar, through passing a continuous stream of ammonia gas (dried over a column of soda lime). Chloroform was chosen as the reaction solvent, since ammonia has a considerable solubility in it through hydrogen bond formation [35]. Unlike a previously published work [33], aqueous ammonia solution was not used in order to avoid hydrolysis of 4f and 5f into the carboxylic acids of the monoanilides 4d and 5d and thiocyanic acid [36].…”