Solubility

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solubility

[‚säl·yə′bil·əd·ē]
(physical chemistry)
The ability of a substance to form a solution with another substance.

Solubility

 

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.

References in periodicals archive ?
Rochelle, A Simple Model for Prediction of Acid Gas Solubilities in Alkanolamines, Gas Sep.
Individual and group percentage deviations with respect to equilibrium solubilities are also showed in this table.
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.
The solubilities of butane and isobutane in PP are shown in Figs.
The quoted solubilities are not corrected for crystallinity, although the correction was made in calculating the thermodynamic parameters.
2-4 and Tables 1--3, Solid symbols denote uncorrected solubilities and open symbols denote solubilities that were corrected for polymer swelling with the S-L EOS.
The solubilities of methoxy or ethoxy substituted polyanilines in organic solvents are improved with respect to PANi.