Nonvolatile Definition in Chemistry

In chemistry, the term  nonvolatile refers to a substance that does not readily evaporate into gas under existing conditions. In other words, a nonvolatile material exerts a low vapor pressure and has a slow rate of evaporation. Examples Glycerin (C3H8O3) is a nonvolatile liquid. Sugar (sucrose) and salt (sodium chloride) are nonvolatile solids. Its probably easier to imagine a nonvolatile substance if you consider the properties of materials that are volatile. Examples include alcohol, mercury, gasoline, and perfume. Volatile substances readily release their molecules into the air. You typically dont smell nonvolatile materials because they dont easily convert from liquids or solids into gases.