What is Unsolubility? Definition, Examples, and Reasons

Unsolubility refers to the inability of a substance to dissolve in a particular solvent or under certain conditions. In other words, it means that the substance does not dissolve or dissociate into its constituent parts when exposed to the solvent or conditions.

For example, some substances like sand and salt are insoluble in water, meaning they do not dissolve in water even after prolonged exposure. Similarly, some compounds like silicon dioxide (SiO2) and carbon dioxide (CO2) are unsoluble in most organic solvents, meaning they do not dissolve in these solvents under normal conditions.

Unsolubility can be due to various reasons such as the physical or chemical properties of the substance, the solvent used, or the conditions under which the solvent is applied. For instance, some substances may be unsoluble because they have a high molecular weight or because they form strong intermolecular bonds that prevent them from dissolving.

In summary, unsolubility refers to the inability of a substance to dissolve in a particular solvent or under certain conditions, and it can be due to various reasons such as physical or chemical properties of the substance, the solvent used, or the conditions under which the solvent is applied.