Vapor pressure data for

American Petroleum Institute, Bibliographies on Hydrocarbons, Vols. 1-4, "Vapor-Liquid Equilibrium Data for Hydrocarbon Systems" (1963), "Vapor Pressure Data for Hydrocarbons" (1964), "Volumetric and Thermodynamic Data for Pure Hydrocarbons and Their Mixtures" (1964), "Vapor-Liquid Equilibrium Data for Hydrocarbon-Nonhydrocarbon Gas Systems" (1964), API, Division of Refining, Washington. 

Correlation and compilation of vapor-pressure data for pure fluids. Normal and low pressure region. 

Compilation of vapor-pressure data for organic compounds data are correlated with the Antoine equation and graphs are presented. 

Presents vapor-pressure data for a large number of substances. 

The correlations were generated by first choosing from the literature the best sets of vapor-pressure data for each fluid. 

More extensive vapor pressure data for lithium and other metals are given ia Ref. 43. To convert kPa to mm Hg, multiply by 7.5. 

The octahydrate is prepared by dissolving BaO in hot water for several hours, filtering off undissolved impurities, then cooling the solution to effect crystallization. Vapor pressure data for the octahydrate (20) is... 

Vapor pressure data for soHd carbon dioxide are given in Table 2 (10). The sublimation temperature of soHd carbon dioxide, 194.5 K at 101 kPa (1 atm), was selected as one of the secondary fixed points for the International Temperature Scale of 1948. 

The method of Shebeko et al. " is the preferred flash point prediction method. The formula of the compound, the system pressure, and vapor pressure data for the compound must be available or estimable. Equation (2-174) is the basic equation. 

If more accurate vapor pressure data across the range are needed, DuPont can supply them. I received full-range vapor pressure data for many products on request from their very helpful SUVA Refrigerants Division. 

Using the vapor pressure data for benzene and toluene [59] ... 

It is desired to separate a non-volatile material from an equimolal mixture of benzene, toluene, and xylene at 80°C. Vapor pressure data for these compounds are shown in several physical property sources. The following approximate values for the specific heats and latent heats of vaporization may be used ... 

P7.1 Vapor pressure data for ethanol (1) + 1,4-dioxane (2) at T = 323.15 K is given in the following table, where. vq is the mole fraction in the liquid phase and y is the mole fraction in the vapor phase. 

E8,6 Use the following vapor pressure data for solid palladium metal as a function of temperature,7 to calculate ASUb//m. the mean enthalpy of sublimation of palladium. 

Table 3.4 Vapor Pressure Data for Piperidine and Pyridine...

A distillation column uses a partial condenser as shown in Figure 9.19. Assume that the reflux ratio and the overhead product composition and flowrate and the operating pressure are known and that the behavior of the liquid and vapor phases in the column is ideal (i.e. Raoult s Law holds). How can the flowrate and composition of the vapor feed to the condenser and its liquid products be estimated, given the vapor pressure data for the pure components. Set up the equations that need to be solved. 

Staples, B.G., Procopio, J.M., Jr. Vapor Pressure Data for Common Acids at High Temperature, ... 

Myers, H.S., Fenske, M.R. (1955) Measurement and correlation of vapor pressure data for high boiling hydrocarbons, hid. Eng. Chem. 47, 1652-1658. 

Table 1 Temperature-Vapor Pressure Data for Isobutyl and Isopropyl Alcohols.

I ve also listed the vapor pressure data for isopropyl alcohol in column 3 of... 

Correlating ln(Pc /Pc), with vapor pressure data For isotopomer pairs with the vapor pressure and VPIE established near Tc, a thermodynamic consistency test between ln(Tc7Tc) and ln(Pc /Pc), and calculation of ln(Pc7Pc) from ln(Tc7Tc) is possible. The critical pressure of the heavier isotopomer at its critical temperature, Pc(Tc), can be calculated from the lighter, Pc,(Tc7 provided the vapor pressure of the lighter between Tc and Tc, the VPIE, and Tc and Tc are known. For Tc < Tc ... 

Parks. G.S. and Barton, B. Vapor pressure data for isopropyl alcohol and tertiaiy-buty alcohol, J. Am. Chem. Soc., 50(l) 24-26, 1928. 

Fig. 31. Vapor pressure data for glycerol. The solid line represents Eq. (109) with the constants reported by Tang and Munkelwitz (1991).

In the CRC Handbook of Chemistry and Physics (Lide, 1995) you find the following vapor pressure data for PCE ... 

Ne (liq.). Vapor pressure data for liquid neon were reported by Cath and Onnes,1 Crommelin,5 Onnes and Crommelin,2 Crommelin and Gibson,1 Clusius,1 Verschaffelt,2 and Mathias, Crommelin, and Onnes.3... 

I2 (liq.). Vapor pressure data for liquid iodine were reported by Ramsay and Young,1 Stelzner and Niedersehulte,1 and Rassow.1 These data yield for the heat of vaporization, V— —12.75 + 0.0056 ( +273.1). Combination of this equation with that for the heat of sublimation gives for the heat of fusion of solid iodine, F= —3.3+0.0016 ( +273.1), or —4.0 at the melting point. See also Rideal.1... 

E. Example Separation of BF3 and CH2CI2. Boron trifluoride (bp —110.7°C) is readily separated from methylene chloride (bp 40.7°C) as illustrated in Fig. 5.6. Inspection of the vapor pressure data in Appendix V reveals that BF3 exerts 75 torr at — 126°C, whereas extrapolation of the vapor pressure data for CH2CI2 to this temperature (log P vs. 1/T plot) indicates a vapor pressure of less than 10 3 torr for this component. Therefore, the reaction mixture is slowly passed through a trap cooled to — 126°C (methylcyclohexane slush bath, see below), which retains the methylene chloride, and into another trap at — 196°C (liquid nitrogen), which retains the boron trifluoride. The rate of trans-... 

Any substance which may be obtained pure and for which accurate vapor pressure data are available may be used for vapor pressure thermometry. Stock recommended a convenient series of compounds and, in collaboration with Hen-nig and others, he obtained accurate vapor pressure data for these compounds.15 These data were obtained on a temperature scale for which 0°C = 273.1K however, more recent data on several of the compounds show it would be difficult to improve on Stock s vapor pressure tables. When high accuracy is desired, the usual precautions involved in precise manometry (Chapter 7) must be observed. 

When converting to the absolute temperature scale T, it is important to recognize the convention 0°C — 273.15 K. The constants A and B in Eq. (3) are determined empirically from experimental data by plotting log P versus 1 /T and taking the slope as —A and the intercept at 1/T = 0 as B. Equation (2) is found to yield a fairly accurate fit to vapor pressure data for highly volatile substances and is often perfectly adequate for moderately accurate data below the boiling point. 

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