The existing vapor pressure measurements available in the literature for the liquid oxygen between the triple and critical points have been utilized to establish the constants and exponent of the modified Frost-Kalkwarf vapor pressure equation in the reduced form as follows: ln Pγ = 6.372408 - 6.637925/Tγ + 0.265517Tγ5 In order to calculate the vapor pressure, only the normal boiling point(Tb=90.180 K) and the critical pressure (Pc=5037.17kPa) and critical temperature (Tc=154.33 K) are necessary to obtain an overall average deviation of 0.36% for 540 experimental vapor pressure data.
Aston JG, Willihnganz E, Messerly GH, J. Am. Chem. Soc., 57, 1642, 1935
Baly ECC, Phil. Mag., 5, 517, 1900
Bestelmeyer A, Ann. Physik., 14, 87, 1904
Bulle F, Physik. Z., 14, 860, 1913
Cath PG, "On the Measurement of Very Low Temperatures. XXIX. Vapour-Pressures of Oxygen and Nitrogen for Obtaining Fixed Points on the Temperature-Scale below 0 ℃, Communs. Phys. Lab. Univ. Leiden No. 152d, 45, 1918
Chung JG, Thodos G, Chem. Eng. J., 12, 219, 1976
Dodge BF, Davis HN, J. Am. Chem. Soc., 49, 610, 1927
Estreicher T, Phil. Mag., 40, 454, 1895
Frost AA, Kalkwarf DR, J. Chem. Phys., 21(2), 264, 1953
Goodwin RD, J. Res. Natl. Bur. Stand. Sect. A, 73A(5), 487, 1969
Henning F, Ann. Physik., 43, 282, 1914
Henning F, Heuse W, Z. Physik., 23, 105, 1924
Henning F, Otto J, Physik. Z., 37(18), 633, 1936
Hoge HJ, J. Res. Natl. Bur. Stand., 44, 321, 1950
Kamerlingh OH, Braak C, "On the Measurement of Very Low Temperatures. XXI. On the Standardizing of Temperatures by Means of Boiling Points of Pure Substances. The Determination of the Vapour Pressure of Oxygen at Three Temperatures," Communs. Phys. Lab. Univ. Leiden No. 107a, 3, 1908
Kamerlingh OH, Dorsman C, Holst G, "Isothermals of Di-Atomic Substances and Their Binary Mixtures. XV. Vapour-Pressures of Oxygen and Critical Point of Oxygen and Nitrogen," Communs. Phys. Lab. Univ. Leiden No. 145b, 11, 1914
Keesom WH, vanderHorst H, Jansen AFJ, "New Determination of the Normal Boiling Point of Oxygen," Proc. Acad. Sci. Amsterdam, 32, 1167, 1929