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solubility |
Also found in: Medical, Wikipedia, Hutchinson | 0.04 sec. |
solubilityDegree to which a substance dissolves in a solvent to make a solution (usually expressed as grams of solute per litre of solvent). Solubility of one fluid (liquid or gas) in another may be complete (totally miscible; e.g., methanol and water) or partial (oil and water dissolve only slightly). In general, “like dissolves like” (e.g., aromatic hydrocarbons dissolve in each other but not in water). Some separation methods (absorption, extraction) rely on differences in solubility, expressed as the distribution coefficient (ratio of a material's solubilities in two solvents). Generally, solubilities of solids in liquids increase with temperature and those of gases decrease with temperature and increase with pressure. A solution in which no more solute can be dissolved at a given temperature and pressure is said to be saturated (see saturation). See also Joel Hildebrand. How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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Adding microelements can increase solid solubility and lattice parameter, as does RS. The use of a reducing cover flux, such as graphite, and only clean, dry tools and charge materials can keep the H level below the solid solubility limit and reduce gas porosity in the castings. The industry must find a commercial method to lower the gas content of molten aluminum to a level below the solid solubility of hydrogen in solid aluminum and keep it that low until the casting is poured and solidifies. |
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