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(physical chemistry)
The ability of a substance to form a solution with another substance.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
The following article is from The Great Soviet Encyclopedia (1979). It might be outdated or ideologically biased.



the ability of one substance to combine with another and form a homogeneous, thermodynamically stable system of variable composition made up of two or more components. These systems are formed upon interaction of gases with liquids, liquids with liquids, and other similar combinations. The ratios of the components to one another may be either arbitrary or restricted within certain limits. In the latter case, the solubility is said to be limited.

The solubility of a substance under given conditions is determined from the substance’s concentration in a saturated solution. The solubility of various substances in a specific solvent depends on external conditions, mainly on the temperature and pressure. The effect of pressure on solubility is most pronounced with gases. A change in external conditions affects solubility in accordance with the principle of equilibrium shift (see LECHÂTELiER’S PRINCIPLE). Solubility charts of various substances have been compiled for the most important solvents. Such charts either express solubility as a function of external conditions or simply list the solubility under standard conditions.

The Great Soviet Encyclopedia, 3rd Edition (1970-1979). © 2010 The Gale Group, Inc. All rights reserved.
References in periodicals archive ?
According to the results above, the solubilities of NaCl decreased with the increase of the percentage of C[H.sub.3]OH.
Figures 2(a) and 2(b) show the comparison of C[H.sub.4] solubilities in water and NaCl solutions of experimental data and this model.
The solubilities of polymers 3-13 in oligoisobutylene depend on the side groups linked to the polyphosphazene chains.
The physical solubilities of TPA in the reaction system are measured by the analytic method from 449 to 507 K and the experimental data are shown in Table 1.
The main objective of this work was to determine the solubilities of C[O.sub.2] in polyester resins using an MSB.
The solubilities were measured with a volumetric method (9).
These twisted diamines can improve the solubilities of polyimides only to some extent.
The phosphate is significantly more soluble than the phosphite at 70[degrees]C, but their solubilities are comparable at 25[degrees]C.