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ionic compound

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ionic compound

Substance composed of oppositely charged ions. All salts, most bases, and some acids are examples of ionic compounds. They possess the following general properties: they are crystalline solids with a high melting point; are soluble in water and insoluble in organic solvents; and always conduct electricity when molten or in aqueous solution. A typical ionic compound is sodium chloride (Na+Cl−).

However, if both ions of the compound involved are complex organic molecules, the melting point may be so low that the compound remains liquid at room temperature. Such ionic liquids are of interest as ‘green solvents’ for industrial processes, as they do not evaporate as easily as conventional solvents.



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