Perfluoroalkanes in water: Experimental Henry's law coefficients for hexafluoroethane and computer simulations for tetrafluoromethane and hexafluoroethane

Article Abstract:

A high-precision apparatus based on an extraction method is used to measure the solubility of hexafluoroethane in water in the temperature range of 287-328 K at pressures close to atmospheric. The experimental data are used to calculate Henry's law coefficients H(sub 2,1)(p1(super sat, T), whose temperature dependence is represented by appropriate correlations.

Water, Thermal properties, Chemistry, Physical and theoretical, Physical chemistry, Alkanes, Ethanes, Ethane, Mechanical properties

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Interactions of nitrous oxide with fluorinated liquids

Article Abstract:

The interactions of nitrous oxide with fluorinated liquids was investigated by reporting original experimental results on gas solubility and interpreting them using molecular simulation. Nitrous oxide was found to be highly soluble in the three fluorinated liquids studied, with mole fraction solubilities on the order of 0.03 under ambient conditions.

Industrial Gas Manufacturing, Industrial gases, Nitrous Oxide, Liquids, Fluorine compounds

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Molecular force field for ionic liquids composed of triflate or bistriflylimide anions

Article Abstract:

A set of force field parameters is proposed for the molecular simulation of ionic liquids containing the anions trifluoromethylsulfate and bis(trifluoromethylsulfonyl)imide, also known as triflate and bistriflylimide, respectively. The force-field models are validated against crystal structures and liquid-state densities.

Crystals, Crystal structure, Molecular dynamics, Methyl groups, Methyl compounds

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