Density, surface tension and refractive index of aromatic hydrocarbons at low temperatures
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The temperature dependence of the density and refractive indices of ethylbenzene, o- and m-xylenes from 273° K down to their crystallization temperatures has been investigated. This dependence has been shown to be linear.
The temperature dependence of the surface tension of toluene, ethylbenzene, o- and m-xylenes is linear from 273° K down to their crystallization temperatures.
Hydrostatic weighing gives reliable results for determining the densities of the liquids at low temperatures.
The molecular refraction and parachor of toluene, ethylbenzene, m-xylene and o-xylene have a tendency to decrease with a decrease in temperature from 273° K.
KeywordsCrystallization Refractive Index Toluene Hydrocarbon Surface Tension
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