nerozpustná

Nerozpustné is a Czech adjective meaning "insoluble." It describes substances that do not dissolve in a particular solvent. This property is crucial in many scientific and industrial processes. For instance, in chemistry, insolubility can be used to separate mixtures or to precipitate desired compounds from a solution. In everyday life, the insolubility of certain materials, like plastics in water, contributes to their durability and widespread use.

The degree of solubility can vary significantly. Some substances are completely insoluble, meaning no amount of solvent will cause them to dissolve. Others are only slightly soluble, dissolving to a very small extent. The concept of insolubility is often relative, depending on the solvent and the conditions, such as temperature and pressure. For example, a substance might be insoluble in water but soluble in organic solvents. Understanding insolubility is fundamental to fields like pharmacology, where drug delivery can be affected by a compound's solubility, and materials science, where the choice of materials is often dictated by their resistance to dissolution.