Science, Tech, Math › Science Nonvolatile Definition in Chemistry Share Flipboard Email Print WLADIMIR BULGAR / Getty Images Science Chemistry Chemical Laws Basics Molecules Periodic Table Projects & Experiments Scientific Method Biochemistry Physical Chemistry Medical Chemistry Chemistry In Everyday Life Famous Chemists Activities for Kids Abbreviations & Acronyms Biology Physics Geology Astronomy Weather & Climate By Anne Marie Helmenstine, Ph.D. Chemistry Expert Ph.D., Biomedical Sciences, University of Tennessee at Knoxville B.A., Physics and Mathematics, Hastings College Dr. Helmenstine holds a Ph.D. in biomedical sciences and is a science writer, educator, and consultant. She has taught science courses at the high school, college, and graduate levels. our editorial process Facebook Facebook Twitter Twitter Anne Marie Helmenstine, Ph.D. Updated October 07, 2019 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. It's 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 don't smell nonvolatile materials because they don't easily convert from liquids or solids into gases.