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Vapor Pressure of Solids and Liquids

The vapour pressure of materials is important in a number of environmental and toxicology arenas. In addition, vapor pressure of solid compounds is a property that reflects both thermodynamic stability and shelf life of a wide range of products, in particular those from the pharmaceutical industry, agrichemical and environmental industries.

The vapour pressure solid and liquid materials can be useful in predicting thermodynamic stability. The DVS-vacuum instrument allows for reliable determination of solid and liquid vapor pressures and enthalpies of vaporisation. This note describes this technique and uses two pesticides (bifenthrin and quinclorac) as examples where DVS-vacuum results are compared to literature values.

Application Note 48: Vapor Pressure Measurement using Knudsen Method | Request a copy