volatile

Examples of volatile in the following topics:

• Vapor Pressure of Nonelectrolyte Solutions

  • A substance that evaporates quickly has high vapor pressure and is referred to as a volatile substance.
  • The vapor pressure of a solvent is lowered by the addition of a non-volatile solute to form a solution.
  • By definition, a non-volatile substance does not evaporate.

• Esters

  • Esters are typically fragrant, and those with low enough molecular weights to be volatile are commonly used as perfumes and are found in essential oils and pheromones.
  • Their flexibility and low polarity affects their physical properties on a macroscopic scale; they tend to be less rigid, leading to a lower melting point, and more volatile, leading to a lower boiling point, than the corresponding amides.
  • Consequently, esters are more volatile than carboxylic acids of similar molecular weight.
  • Esters are usually identified by gas chromatography, taking advantage of their volatility.

• Photochemical Smog

  • This type of air pollution is formed through the reaction of solar radiation with airborne pollutants like nitrogen oxides and volatile organic compounds.
  • Primary pollutants include nitrogen oxides and volatile organic compounds as a result of industrial processes, while secondary pollutants are created through the reaction of primary pollutants with ultraviolet light.

• The Mass Spectrometer

  • Gases and volatile liquid samples are allowed to leak into the ion source from a reservoir (as shown).
  • Non-volatile solids and liquids may be introduced directly.

• Air Pollution

• Bonding in Metals: The Electron Sea Model

  • This property contributes to the low volatility, high melting and boiling points, and high density of most metals.

• Molecular Crystals

  • Molecular solids tend to be soft or deformable, have low melting points, and are often sufficiently volatile to evaporate directly into the gas phase.
  • Because dispersion forces and the other van der Waals forces increase with the number of atoms, large molecules are generally less volatile, and have higher melting points than smaller ones.

• Chromium

  • The only binary compound is the volatile chromium(V) fluoride (CrF5).

• Introduction

  • Alternatively, solids may either be incorporated in a thin KBr disk, prepared under high pressure, or mixed with a little non-volatile liquid and ground to a paste (or mull) that is smeared between salt plates.

• Terpenes

  • Next to methane it is the most common volatile organic compound found in the atmosphere.