Prediction of second and cross virial coefficients of blended mobile phases in gas chromatography

Journal Article · Mon Oct 01 04:00:00 EDT 1984 · Anal. Chem.; (United States)

DOI:https://doi.org/10.1021/ac00276a030· OSTI ID:5787418

Laub, R J

The second-interaction virial coefficients of vapors of potential interest as carriers in gas chromatography are considered in detail. Those examined include the monatomic gases helium, neon, argon, and krypton, the homonuclear diatomic compounds hydrogen, nitrogen, and oxygen, the heteronuclear inorganic species carbon monoxide, carbon dioxide, nitrous oxide, sulfur dioxide, water, hydrogen chloride, and ammonia, and the organic materials methane through n-pentane, carbon tetrachloride, and fluorotrichloromethane. Experimentally derived pure-component virial coefficients B/sub ii/ for all species except water and hydrogen chloride are shown to fit quadratic equations of the form (chosen so as to reflect the principle of corresponding states) B/sub ii//V/sub ii//sup c/ = f(T/sub ii//sup c//T), where the superscripts c indicate a critical value. The temperature range to which the temperature-invariant coefficients apply spans for all substances that for which accurate experimental data are available which, for many, is 200-950 K. Methods of prediction of the cross virial coefficient B/sub ii/ are detailed, and the results are then employed with B/sub ii/ for quantitative theoretical evaluation of the compositional variation of second-interaction virial coefficients B/sub M/.

• Research Organization: San Diego State Univ., CA
• OSTI ID: 5787418
• Journal Information: Anal. Chem.; (United States), Journal Name: Anal. Chem.; (United States) Vol. 56:12; ISSN ANCHA
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400102* -- Chemical & Spectral Procedures
400201 -- Chemical & Physicochemical Properties
400301 -- Organic Chemistry-- Chemical & Physicochemical Properties-- (-1987)
ALKANES
AMMONIA
ARGON
BUTANE
CARBON COMPOUNDS
CARBON DIOXIDE
CARBON MONOXIDE
CARBON OXIDES
CARBON TETRACHLORIDE
CHALCOGENIDES
CHLORINATED ALIPHATIC HYDROCARBONS
CHLOROFORM
CHROMATOGRAPHY
DATA
ELEMENTS
EQUATIONS
EQUATIONS OF STATE
ETHANE
EXPERIMENTAL DATA
FLUIDS
FLUORINE COMPOUNDS
GAS ANALYSIS
GAS CHROMATOGRAPHY
GASES
HALOGEN COMPOUNDS
HALOGENATED ALIPHATIC HYDROCARBONS
HELIUM
HIGH TEMPERATURE
HYDRIDES
HYDROCARBONS
HYDROCHLORIC ACID
HYDROGEN
HYDROGEN COMPOUNDS
INFORMATION
INORGANIC ACIDS
KRYPTON
MEDIUM TEMPERATURE
METHANE
NEON
NITROGEN
NITROGEN COMPOUNDS
NITROGEN HYDRIDES
NITROGEN OXIDES
NITROUS OXIDE
NONMETALS
NUMERICAL DATA
ORGANIC CHLORINE COMPOUNDS
ORGANIC COMPOUNDS
ORGANIC HALOGEN COMPOUNDS
OXIDES
OXYGEN
OXYGEN COMPOUNDS
PENTANE
PHYSICAL PROPERTIES
PROPANE
RARE GASES
SEPARATION PROCESSES
SULFUR COMPOUNDS
SULFUR DIOXIDE
SULFUR OXIDES
TEMPERATURE DEPENDENCE
THERMODYNAMIC PROPERTIES
VIRIAL EQUATION
WATER