orcutt_1967#

R. H. Orcutt and R. H. Cole, “Dielectric Constants of Imperfect Gases. III. Atomic Gases, Hydrogen, and Nitrogen”, J. Chem. Phys. 46, 697 (1967)

Source record · Catalogue · Review register

DOI: 10.1063/1.1840728

Source kind: measurement

Recorded technique: Dielectric constants from three identical three-terminal parallel-plate capacitance cells (geometric capacitance 100.15 pF) and a transformer bridge (2e-5 pF sensitivity) against a thermostated 100 pF standard. B_eps from a modified Burnett (cyclic) expansion among the three cells to below 150 atm, the density ratio after three expansions (2/3)^3 known to second order (Eqs. 2-5); A_eps from separate runs below 7 atm with a quartz Bourdon gauge recalibrated against a pressure balance (0.03 %), f - B’(P/RT)^2 fitted linearly in P/RT with B’ = B_eps - A_eps B_p from PVT data (p. 698). Matheson gases used as received (pp. 697-699).

Materials in structured entries: Ar, CO2, H2, He, Kr, N2, Ne

Dataset quantities: molar_refractivity, refractivity_virial_coefficient

Contents: 34 datasets; 0 formulas.

Curation notes#

Definitions (p. 697): f/d = (eps - 1)/((eps + 2) d) = A_eps + B_eps d + C_eps d^2 (Eq. 1), d the molar density, A_eps = 4 pi N_0 alpha/3 for nonpolar gases: A_eps is the package’s molar refractivity in the static limit and B_eps its refractivity virial coefficient (‘dielectric, for a static value’). The measurement is at the capacitance bridge’s (unstated, audio) frequency: static.

Temperature: ‘Final values of A_eps and B_eps for the six gases at 49 degrees C are listed in Table II’ (p. 699; abstract: 49 degrees C), stored as 322.15 K; the apparatus section says the assembly ‘was kept at 40.0 degrees C’ (p. 698) and the figure captions say 50 degrees C, so the temperature is uncertain to a few degrees (49 taken as the authors’ statement of the results). Table II’s values include a correction for the pressure dependence of the cells’ geometric capacitance (k = 0.19e-6 /atm): +0.0017 cm^3/mol to A_eps and +0.019 (He) to -0.094 (Kr) cm^6/mol^2 to B_eps (p. 699). Impurities (p. 698): He total 0.005 %; Ne He 44 ppm; Ar O2 3, N2 18 ppm; Kr O2 2, N2 15, Ne 12 ppm; H2 O2 0.5, N2 5 ppm, hydrocarbons 0.2 ppm; N2 O2 3, H2O 4 ppm. Precision: +-1 ppm in capacitance or +-0.02 % in eps - 1 (p. 699).

Not extracted: Table I (the per-run A_eps and B_eps before the capacitance correction; its cells merge the stacked runs: He 0.5174 +- 0.0007 and B -0.050 +- 0.05, -0.098 +- 0.05; Ne 0.9970 +- 0.0008, 0.9936 +- 0.0013 and B -0.32 +- 0.10; Ar 4.140 +- 0.002, 4.142 +- 0.003 and B 0.40 +- 0.20; Kr 6.264 +- 0.003, 6.266 +- 0.003 and B 5.7 +- 0.3; H2 2.031 +- 0.001 and B 0.22 +- 0.20, -0.15 +- 0.15, -0.02 +- 0.05; N2 4.388 +- 0.002 and B 0.65 +- 0.30, 0.83 +- 0.20); Table II’s quadrupole-induced contributions (H2 0.018, N2 2.4 cm^6/mol^2, with Q = 0.6e-26 and 1.9e-26 esu cm^2, p. 701); Table III’s refractive-index virial coefficients averaged over 4471-6678 A (Ar 25 degrees C: A_n 4.257 +- 0.010, B_n -1.0 +- 1.0, Michels and Botzen 1949; N2 25 degrees C: 4.470 +- 0.005, 0.8 +- 0.8, Michels et al. 1947; CO2 50 degrees C: 6.679 +- 0.006, 5.3 +- 0.9, and 100 degrees C (4471-5876 A): 6.724 +- 0.010, 2.7 +- 1.4, Michels and Hamers 1937), which have no single wavelength (‘extrapolations to infinite wavelength not being practical’, p. 701); the B_n unit is printed cm^3/mole^2 (for cm^6/mole^2). Also: B_tf(CO2) = 7.6 and B_eps(CO2, 50 degrees C) = 43 cm^6/mol^2 (quadrupole effects, Ref. 4; p. 701); the low-pressure He slope B’ = -8.5 vs -6.1 calculated, Kr +284 vs +274 (p. 699).

Table II’s note defines a-d only: the N2 literature B marked e is unidentified. The A_eps are static and include no infrared or orientation contributions for these nonpolar gases beyond the (small) vibrational polarizability of H2 and N2. achtermann_1991 reproduces the He values (0.519 +- 0.001, -0.06 +- 0.04, ‘at 323 K’) and the H2 B_tf (0.036).

Recorded bibliographic identity status: VALIDATED_WITH_WARNINGS. This concerns identification of the source; it does not establish the scientific correctness of its contents.

Datasets#

orcutt_1967/A_this_work_He#

{
  "id": "A_this_work_He",
  "material": "He",
  "file": "He/orcutt_1967__A_this_work_He.csv",
  "table": "tbl_f6b30fa838e4",
  "quantity": "molar_refractivity",
  "unit": "cm3/mol",
  "abscissa_unit": "angstrom",
  "wavelength_medium": "vacuum",
  "use": "primary",
  "uncertainty": {
    "column": true,
    "level": "not stated"
  }
}

Table II, A_eps ‘This work’ (cm^3/mol), the static dielectric first virial coefficient 4 pi N_0 alpha/3 at 49 degrees C (row id 322.15 K), from the low-pressure runs (Table I) corrected by +0.0017 for the pressure dependence of the cells’ geometric capacitance; uncertainty from the precision at each pressure and calibration errors (level not stated). Static: capacitance-bridge measurement.

orcutt_1967/A_newell_baird_He#

{
  "id": "A_newell_baird_He",
  "material": "He",
  "file": "He/orcutt_1967__A_newell_baird_He.csv",
  "table": "tbl_f6b30fa838e4",
  "quantity": "molar_refractivity",
  "unit": "cm3/mol",
  "abscissa_unit": "angstrom",
  "wavelength_medium": "vacuum",
  "use": "reproduced",
  "reproduced_from": [
    "newell_1965"
  ],
  "uncertainty": {
    "column": true,
    "level": "not stated"
  }
}

Table II, ‘Newell and Baird’ (Ref. 7): newell_1965’s 47.7 GHz refractivity at 0 degrees C, 760 Torr converted by Orcutt and Cole to a molar polarization (the conversion is not described; He 0.5160 corresponds to a real-gas density). Stored as static.

orcutt_1967/A_nbs_He#

{
  "id": "A_nbs_He",
  "material": "He",
  "file": "He/orcutt_1967__A_nbs_He.csv",
  "table": "tbl_f6b30fa838e4",
  "quantity": "molar_refractivity",
  "unit": "cm3/mol",
  "abscissa_unit": "angstrom",
  "wavelength_medium": "vacuum",
  "use": "reproduced",
  "reproduced_from": [
    "A. A. Maryott and F. Buckley, Natl. Bur. Std. (U.S.) Circ. No. 537 (1953)"
  ],
  "uncertainty": {
    "column": true,
    "level": "not stated"
  }
}

Table II, ‘NBS’ (Ref. 6): ‘calculated from reference gas data compiled by Maryott and Buckley ... with the exception of Ne and Kr the uncertainties are based on agreement of values from six or more sources’ (p. 699). Static (dielectric).

orcutt_1967/B_this_work_He#

{
  "id": "B_this_work_He",
  "material": "He",
  "file": "He/orcutt_1967__B_this_work_He.csv",
  "table": "tbl_f6b30fa838e4",
  "quantity": "refractivity_virial_coefficient",
  "unit": "cm6/mol2",
  "abscissa_unit": "angstrom",
  "wavelength_medium": "vacuum",
  "use": "primary",
  "uncertainty": {
    "column": true,
    "level": "not stated"
  },
  "parameters": {
    "temperature_k": 322.15
  }
}

Table II, B_eps ‘This work’ ‘(corr)’ (cm^6/mol^2), static dielectric second virial coefficient at 49 degrees C from the cyclic-expansion runs (Eq. 5, Table I), corrected for the pressure dependence of the geometric capacitance (+0.019 for He to -0.094 for Kr, p. 699); precision estimates from the slopes of Delta f_3 vs f^2 (level not stated).

orcutt_1967/B_johnston_1960_He#

{
  "id": "B_johnston_1960_He",
  "material": "He",
  "file": "He/orcutt_1967__B_johnston_1960_He.csv",
  "table": "tbl_f6b30fa838e4",
  "quantity": "refractivity_virial_coefficient",
  "unit": "cm6/mol2",
  "abscissa_unit": "angstrom",
  "wavelength_medium": "vacuum",
  "use": "reproduced",
  "reproduced_from": [
    "D. R. Johnston, G. J. Oudemanns and R. H. Cole, J. Chem. Phys. 33, 1310 (1960)"
  ],
  "uncertainty": {
    "column": true,
    "level": "not stated"
  }
}

Table II, B literature, mark c (Ref. 1): Johnston, Oudemanns and Cole (1960), same laboratory, ‘within the considerably larger uncertainties of the earlier work’ (p. 700); temperature not given here.

orcutt_1967/B_fluctuation_He#

{
  "id": "B_fluctuation_He",
  "material": "He",
  "file": "He/orcutt_1967__B_fluctuation_He.csv",
  "table": "tbl_f6b30fa838e4",
  "quantity": "refractivity_virial_coefficient",
  "unit": "cm6/mol2",
  "abscissa_unit": "angstrom",
  "wavelength_medium": "vacuum",
  "use": "check",
  "parameters": {
    "temperature_k": 322.15
  }
}

Table II, ‘Fluctuation induced’: the authors’ classical translational-fluctuation (Kirkwood, dipole-induced-dipole) B_tf with Lennard-Jones 12-6 parameters from Hirschfelder, Curtiss and Bird (p. 700), at 49 degrees C; one contribution of a model, ‘in all cases significantly larger than the experimental values’. The H2 value is the ‘theoretical value for H2 from Orcutt and Cole’ that achtermann_1991 reproduces.

orcutt_1967/A_this_work_Ne#

{
  "id": "A_this_work_Ne",
  "material": "Ne",
  "file": "Ne/orcutt_1967__A_this_work_Ne.csv",
  "table": "tbl_f6b30fa838e4",
  "quantity": "molar_refractivity",
  "unit": "cm3/mol",
  "abscissa_unit": "angstrom",
  "wavelength_medium": "vacuum",
  "use": "primary",
  "uncertainty": {
    "column": true,
    "level": "not stated"
  }
}

orcutt_1967/A_nbs_Ne#

{
  "id": "A_nbs_Ne",
  "material": "Ne",
  "file": "Ne/orcutt_1967__A_nbs_Ne.csv",
  "table": "tbl_f6b30fa838e4",
  "quantity": "molar_refractivity",
  "unit": "cm3/mol",
  "abscissa_unit": "angstrom",
  "wavelength_medium": "vacuum",
  "use": "reproduced",
  "reproduced_from": [
    "A. A. Maryott and F. Buckley, Natl. Bur. Std. (U.S.) Circ. No. 537 (1953)"
  ],
  "uncertainty": {
    "column": true,
    "level": "not stated"
  }
}

orcutt_1967/B_this_work_Ne#

{
  "id": "B_this_work_Ne",
  "material": "Ne",
  "file": "Ne/orcutt_1967__B_this_work_Ne.csv",
  "table": "tbl_f6b30fa838e4",
  "quantity": "refractivity_virial_coefficient",
  "unit": "cm6/mol2",
  "abscissa_unit": "angstrom",
  "wavelength_medium": "vacuum",
  "use": "primary",
  "uncertainty": {
    "column": true,
    "level": "not stated"
  },
  "parameters": {
    "temperature_k": 322.15
  }
}

orcutt_1967/B_fluctuation_Ne#

{
  "id": "B_fluctuation_Ne",
  "material": "Ne",
  "file": "Ne/orcutt_1967__B_fluctuation_Ne.csv",
  "table": "tbl_f6b30fa838e4",
  "quantity": "refractivity_virial_coefficient",
  "unit": "cm6/mol2",
  "abscissa_unit": "angstrom",
  "wavelength_medium": "vacuum",
  "use": "check",
  "parameters": {
    "temperature_k": 322.15
  }
}

orcutt_1967/A_this_work_Ar#

{
  "id": "A_this_work_Ar",
  "material": "Ar",
  "file": "Ar/orcutt_1967__A_this_work_Ar.csv",
  "table": "tbl_f6b30fa838e4",
  "quantity": "molar_refractivity",
  "unit": "cm3/mol",
  "abscissa_unit": "angstrom",
  "wavelength_medium": "vacuum",
  "use": "primary",
  "uncertainty": {
    "column": true,
    "level": "not stated"
  }
}

orcutt_1967/A_newell_baird_Ar#

{
  "id": "A_newell_baird_Ar",
  "material": "Ar",
  "file": "Ar/orcutt_1967__A_newell_baird_Ar.csv",
  "table": "tbl_f6b30fa838e4",
  "quantity": "molar_refractivity",
  "unit": "cm3/mol",
  "abscissa_unit": "angstrom",
  "wavelength_medium": "vacuum",
  "use": "reproduced",
  "reproduced_from": [
    "newell_1965"
  ],
  "uncertainty": {
    "column": true,
    "level": "not stated"
  }
}

orcutt_1967/A_nbs_Ar#

{
  "id": "A_nbs_Ar",
  "material": "Ar",
  "file": "Ar/orcutt_1967__A_nbs_Ar.csv",
  "table": "tbl_f6b30fa838e4",
  "quantity": "molar_refractivity",
  "unit": "cm3/mol",
  "abscissa_unit": "angstrom",
  "wavelength_medium": "vacuum",
  "use": "reproduced",
  "reproduced_from": [
    "A. A. Maryott and F. Buckley, Natl. Bur. Std. (U.S.) Circ. No. 537 (1953)"
  ],
  "uncertainty": {
    "column": true,
    "level": "not stated"
  }
}

orcutt_1967/B_this_work_Ar#

{
  "id": "B_this_work_Ar",
  "material": "Ar",
  "file": "Ar/orcutt_1967__B_this_work_Ar.csv",
  "table": "tbl_f6b30fa838e4",
  "quantity": "refractivity_virial_coefficient",
  "unit": "cm6/mol2",
  "abscissa_unit": "angstrom",
  "wavelength_medium": "vacuum",
  "use": "primary",
  "uncertainty": {
    "column": true,
    "level": "not stated"
  },
  "parameters": {
    "temperature_k": 322.15
  }
}

orcutt_1967/B_johnston_1960_Ar#

{
  "id": "B_johnston_1960_Ar",
  "material": "Ar",
  "file": "Ar/orcutt_1967__B_johnston_1960_Ar.csv",
  "table": "tbl_f6b30fa838e4",
  "quantity": "refractivity_virial_coefficient",
  "unit": "cm6/mol2",
  "abscissa_unit": "angstrom",
  "wavelength_medium": "vacuum",
  "use": "reproduced",
  "reproduced_from": [
    "D. R. Johnston, G. J. Oudemanns and R. H. Cole, J. Chem. Phys. 33, 1310 (1960)"
  ],
  "uncertainty": {
    "column": true,
    "level": "not stated"
  }
}

orcutt_1967/B_orcutt_cole_1965_Ar#

{
  "id": "B_orcutt_cole_1965_Ar",
  "material": "Ar",
  "file": "Ar/orcutt_1967__B_orcutt_cole_1965_Ar.csv",
  "table": "tbl_f6b30fa838e4",
  "quantity": "refractivity_virial_coefficient",
  "unit": "cm6/mol2",
  "abscissa_unit": "angstrom",
  "wavelength_medium": "vacuum",
  "use": "reproduced",
  "reproduced_from": [
    "R. H. Orcutt and R. H. Cole, Physica 31, 1779 (1965)"
  ],
  "uncertainty": {
    "column": true,
    "level": "not stated"
  }
}

Table II, B literature, mark d (Ref. 5): Orcutt and Cole (1965); temperature not given here. The cell prints it on a second line under Ref. 1’s value.

orcutt_1967/B_fluctuation_Ar#

{
  "id": "B_fluctuation_Ar",
  "material": "Ar",
  "file": "Ar/orcutt_1967__B_fluctuation_Ar.csv",
  "table": "tbl_f6b30fa838e4",
  "quantity": "refractivity_virial_coefficient",
  "unit": "cm6/mol2",
  "abscissa_unit": "angstrom",
  "wavelength_medium": "vacuum",
  "use": "check",
  "parameters": {
    "temperature_k": 322.15
  }
}

orcutt_1967/A_this_work_Kr#

{
  "id": "A_this_work_Kr",
  "material": "Kr",
  "file": "Kr/orcutt_1967__A_this_work_Kr.csv",
  "table": "tbl_f6b30fa838e4",
  "quantity": "molar_refractivity",
  "unit": "cm3/mol",
  "abscissa_unit": "angstrom",
  "wavelength_medium": "vacuum",
  "use": "primary",
  "uncertainty": {
    "column": true,
    "level": "not stated"
  }
}

orcutt_1967/A_nbs_Kr#

{
  "id": "A_nbs_Kr",
  "material": "Kr",
  "file": "Kr/orcutt_1967__A_nbs_Kr.csv",
  "table": "tbl_f6b30fa838e4",
  "quantity": "molar_refractivity",
  "unit": "cm3/mol",
  "abscissa_unit": "angstrom",
  "wavelength_medium": "vacuum",
  "use": "reproduced",
  "reproduced_from": [
    "A. A. Maryott and F. Buckley, Natl. Bur. Std. (U.S.) Circ. No. 537 (1953)"
  ],
  "uncertainty": {
    "column": true,
    "level": "not stated"
  }
}

orcutt_1967/B_this_work_Kr#

{
  "id": "B_this_work_Kr",
  "material": "Kr",
  "file": "Kr/orcutt_1967__B_this_work_Kr.csv",
  "table": "tbl_f6b30fa838e4",
  "quantity": "refractivity_virial_coefficient",
  "unit": "cm6/mol2",
  "abscissa_unit": "angstrom",
  "wavelength_medium": "vacuum",
  "use": "primary",
  "uncertainty": {
    "column": true,
    "level": "not stated"
  },
  "parameters": {
    "temperature_k": 322.15
  }
}

orcutt_1967/B_fluctuation_Kr#

{
  "id": "B_fluctuation_Kr",
  "material": "Kr",
  "file": "Kr/orcutt_1967__B_fluctuation_Kr.csv",
  "table": "tbl_f6b30fa838e4",
  "quantity": "refractivity_virial_coefficient",
  "unit": "cm6/mol2",
  "abscissa_unit": "angstrom",
  "wavelength_medium": "vacuum",
  "use": "check",
  "parameters": {
    "temperature_k": 322.15
  }
}

orcutt_1967/A_this_work_H2#

{
  "id": "A_this_work_H2",
  "material": "H2",
  "file": "H2/orcutt_1967__A_this_work_H2.csv",
  "table": "tbl_f6b30fa838e4",
  "quantity": "molar_refractivity",
  "unit": "cm3/mol",
  "abscissa_unit": "angstrom",
  "wavelength_medium": "vacuum",
  "use": "primary",
  "uncertainty": {
    "column": true,
    "level": "not stated"
  }
}

orcutt_1967/A_newell_baird_H2#

{
  "id": "A_newell_baird_H2",
  "material": "H2",
  "file": "H2/orcutt_1967__A_newell_baird_H2.csv",
  "table": "tbl_f6b30fa838e4",
  "quantity": "molar_refractivity",
  "unit": "cm3/mol",
  "abscissa_unit": "angstrom",
  "wavelength_medium": "vacuum",
  "use": "reproduced",
  "reproduced_from": [
    "newell_1965"
  ],
  "uncertainty": {
    "column": true,
    "level": "not stated"
  }
}

orcutt_1967/A_nbs_H2#

{
  "id": "A_nbs_H2",
  "material": "H2",
  "file": "H2/orcutt_1967__A_nbs_H2.csv",
  "table": "tbl_f6b30fa838e4",
  "quantity": "molar_refractivity",
  "unit": "cm3/mol",
  "abscissa_unit": "angstrom",
  "wavelength_medium": "vacuum",
  "use": "reproduced",
  "reproduced_from": [
    "A. A. Maryott and F. Buckley, Natl. Bur. Std. (U.S.) Circ. No. 537 (1953)"
  ],
  "uncertainty": {
    "column": true,
    "level": "not stated"
  }
}

orcutt_1967/B_this_work_H2#

{
  "id": "B_this_work_H2",
  "material": "H2",
  "file": "H2/orcutt_1967__B_this_work_H2.csv",
  "table": "tbl_f6b30fa838e4",
  "quantity": "refractivity_virial_coefficient",
  "unit": "cm6/mol2",
  "abscissa_unit": "angstrom",
  "wavelength_medium": "vacuum",
  "use": "primary",
  "uncertainty": {
    "column": true,
    "level": "not stated"
  },
  "parameters": {
    "temperature_k": 322.15
  }
}

orcutt_1967/B_fluctuation_H2#

{
  "id": "B_fluctuation_H2",
  "material": "H2",
  "file": "H2/orcutt_1967__B_fluctuation_H2.csv",
  "table": "tbl_f6b30fa838e4",
  "quantity": "refractivity_virial_coefficient",
  "unit": "cm6/mol2",
  "abscissa_unit": "angstrom",
  "wavelength_medium": "vacuum",
  "use": "check",
  "parameters": {
    "temperature_k": 322.15
  }
}

orcutt_1967/A_this_work_N2#

{
  "id": "A_this_work_N2",
  "material": "N2",
  "file": "N2/orcutt_1967__A_this_work_N2.csv",
  "table": "tbl_f6b30fa838e4",
  "quantity": "molar_refractivity",
  "unit": "cm3/mol",
  "abscissa_unit": "angstrom",
  "wavelength_medium": "vacuum",
  "use": "primary",
  "uncertainty": {
    "column": true,
    "level": "not stated"
  }
}

orcutt_1967/A_newell_baird_N2#

{
  "id": "A_newell_baird_N2",
  "material": "N2",
  "file": "N2/orcutt_1967__A_newell_baird_N2.csv",
  "table": "tbl_f6b30fa838e4",
  "quantity": "molar_refractivity",
  "unit": "cm3/mol",
  "abscissa_unit": "angstrom",
  "wavelength_medium": "vacuum",
  "use": "reproduced",
  "reproduced_from": [
    "newell_1965"
  ],
  "uncertainty": {
    "column": true,
    "level": "not stated"
  }
}

orcutt_1967/A_nbs_N2#

{
  "id": "A_nbs_N2",
  "material": "N2",
  "file": "N2/orcutt_1967__A_nbs_N2.csv",
  "table": "tbl_f6b30fa838e4",
  "quantity": "molar_refractivity",
  "unit": "cm3/mol",
  "abscissa_unit": "angstrom",
  "wavelength_medium": "vacuum",
  "use": "reproduced",
  "reproduced_from": [
    "A. A. Maryott and F. Buckley, Natl. Bur. Std. (U.S.) Circ. No. 537 (1953)"
  ],
  "uncertainty": {
    "column": true,
    "level": "not stated"
  }
}

orcutt_1967/B_this_work_N2#

{
  "id": "B_this_work_N2",
  "material": "N2",
  "file": "N2/orcutt_1967__B_this_work_N2.csv",
  "table": "tbl_f6b30fa838e4",
  "quantity": "refractivity_virial_coefficient",
  "unit": "cm6/mol2",
  "abscissa_unit": "angstrom",
  "wavelength_medium": "vacuum",
  "use": "primary",
  "uncertainty": {
    "column": true,
    "level": "not stated"
  },
  "parameters": {
    "temperature_k": 322.15
  }
}

orcutt_1967/B_unidentified_e_N2#

{
  "id": "B_unidentified_e_N2",
  "material": "N2",
  "file": "N2/orcutt_1967__B_unidentified_e_N2.csv",
  "table": "tbl_f6b30fa838e4",
  "quantity": "refractivity_virial_coefficient",
  "unit": "cm6/mol2",
  "abscissa_unit": "angstrom",
  "wavelength_medium": "vacuum",
  "use": "reproduced",
  "reproduced_from": [
    "unidentified (Orcutt and Cole 1967, Table II note e, missing)"
  ],
  "uncertainty": {
    "column": true,
    "level": "not stated"
  }
}

Table II, B literature, mark e: the table note defines only a-d, so the source of this nitrogen value is not identified in the paper (image and pdf checked); temperature not given.

orcutt_1967/B_fluctuation_N2#

{
  "id": "B_fluctuation_N2",
  "material": "N2",
  "file": "N2/orcutt_1967__B_fluctuation_N2.csv",
  "table": "tbl_f6b30fa838e4",
  "quantity": "refractivity_virial_coefficient",
  "unit": "cm6/mol2",
  "abscissa_unit": "angstrom",
  "wavelength_medium": "vacuum",
  "use": "check",
  "parameters": {
    "temperature_k": 322.15
  }
}

orcutt_1967/A_n_phillips_1920_CO2#

{
  "id": "A_n_phillips_1920_CO2",
  "material": "CO2",
  "file": "CO2/orcutt_1967__A_n_phillips_1920_CO2.csv",
  "table": "tbl_3e1a5c368033",
  "quantity": "molar_refractivity",
  "unit": "cm3/mol",
  "abscissa_unit": "angstrom",
  "wavelength_medium": "standard_air",
  "use": "reproduced",
  "reproduced_from": [
    "D. Phillips, Proc. Roy. Soc. (London) A97, 225 (1920)"
  ],
  "uncertainty": {
    "column": true,
    "level": "not stated"
  }
}

Table III, ‘CO2, 34 degrees C’, 5461 A: A_n = 6.686 +- 0.0015 cm^3/mol, the Lorentz-Lorenz first coefficient of the authors’ least-squares fit of Phillips’s refractive-index data (Table III note c, printed ‘6’ in the library’s footnote). 5461 A is the Hg green line, taken as an air wavelength.

orcutt_1967/B_n_phillips_1920_CO2#

{
  "id": "B_n_phillips_1920_CO2",
  "material": "CO2",
  "file": "CO2/orcutt_1967__B_n_phillips_1920_CO2.csv",
  "table": "tbl_3e1a5c368033",
  "quantity": "refractivity_virial_coefficient",
  "unit": "cm6/mol2",
  "abscissa_unit": "angstrom",
  "wavelength_medium": "standard_air",
  "use": "reproduced",
  "reproduced_from": [
    "D. Phillips, Proc. Roy. Soc. (London) A97, 225 (1920)"
  ],
  "uncertainty": {
    "column": true,
    "level": "not stated"
  },
  "parameters": {
    "temperature_k": 307.15
  }
}

Table III, ‘CO2, 34 degrees C’, 5461 A: B_n = 0.40 +- 0.36, printed in ‘cm3/mole2’ (a misprint for cm^6/mole^2), from the authors’ fit of Phillips’s data (Lorentz-Lorenz function, p. 701).

Formulas#

No formulas are recorded.

Corrections#

No dataset errata are recorded in this source record.

Formula corrections, where recorded, appear with their formulas above. Curation notes may also discuss corrections or unresolved interpretation. Consult the review register for the checks and decisions.