phosphorus

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Gas phase thermochemistry data

Go To: Top, Condensed phase thermochemistry data, Phase change data, References, Notes

Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.

Quantity Value Units Method Reference Comment
Δfgas316.5 ± 1.0kJ/molReviewCox, Wagman, et al., 1984CODATA Review value
Δfgas316.39kJ/molReviewChase, 1998Data last reviewed in June, 1961
Quantity Value Units Method Reference Comment
gas,1 bar163.199 ± 0.003J/mol*KReviewCox, Wagman, et al., 1984CODATA Review value
gas,1 bar163.20J/mol*KReviewChase, 1998Data last reviewed in June, 1961

Gas Phase Heat Capacity (Shomate Equation)

Cp° = A + B*t + C*t2 + D*t3 + E/t2
H° − H°298.15= A*t + B*t2/2 + C*t3/3 + D*t4/4 − E/t + F − H
S° = A*ln(t) + B*t + C*t2/2 + D*t3/3 − E/(2*t2) + G
    Cp = heat capacity (J/mol*K)
    H° = standard enthalpy (kJ/mol)
    S° = standard entropy (J/mol*K)
    t = temperature (K) / 1000.

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Temperature (K) 1180.008 to 2200.2200. to 6000.
A 20.44403-2.107549
B 1.0517459.311953
C -1.098514-0.557522
D 0.377924-0.020498
E 0.01064529.30064
F 310.2930353.6459
G 187.7302190.4707
H 316.3903316.3903
ReferenceChase, 1998Chase, 1998
Comment Data last reviewed in June, 1961 Data last reviewed in June, 1961

Condensed phase thermochemistry data

Go To: Top, Gas phase thermochemistry data, Phase change data, References, Notes

Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.

Quantity Value Units Method Reference Comment
Δfliquid0.62kJ/molReviewChase, 1998Data last reviewed in June, 1961
Quantity Value Units Method Reference Comment
liquid,1 bar43.01J/mol*KReviewChase, 1998Data last reviewed in June, 1961
Quantity Value Units Method Reference Comment
Δfsolid-17.46kJ/molReviewChase, 1998red, v phase; Data last reviewed in June, 1961
Quantity Value Units Method Reference Comment
solid,1 bar41.09 ± 0.25J/mol*KReviewCox, Wagman, et al., 1984white phase; CODATA Review value

Liquid Phase Heat Capacity (Shomate Equation)

Cp° = A + B*t + C*t2 + D*t3 + E/t2
H° − H°298.15= A*t + B*t2/2 + C*t3/3 + D*t4/4 − E/t + F − H
S° = A*ln(t) + B*t + C*t2/2 + D*t3/3 − E/(2*t2) + G
    Cp = heat capacity (J/mol*K)
    H° = standard enthalpy (kJ/mol)
    S° = standard entropy (J/mol*K)
    t = temperature (K) / 1000.

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Temperature (K) 317.3 to 1180.008
A 26.32602
B 1.041373×10-10
C -6.121360×10-11
D 1.094033×10-11
E 2.995196×10-12
F -7.234262
G 74.86891
H 0.615002
ReferenceChase, 1998
Comment Data last reviewed in June, 1961

Solid Phase Heat Capacity (Shomate Equation)

Cp° = A + B*t + C*t2 + D*t3 + E/t2
H° − H°298.15= A*t + B*t2/2 + C*t3/3 + D*t4/4 − E/t + F − H
S° = A*ln(t) + B*t + C*t2/2 + D*t3/3 − E/(2*t2) + G
    Cp = heat capacity (J/mol*K)
    H° = standard enthalpy (kJ/mol)
    S° = standard entropy (J/mol*K)
    t = temperature (K) / 1000.

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Temperature (K) 298. to 317.3298. to 317.3298. to 317.3298. to 317.3
A 24.3221416.4557628.0422628.38677
B -1.80980743.28892-18.96093-19.14360
C 7.486431-58.7387636.6120936.82476
D 3.14795025.60646-13.81611-13.89983
E -0.296815-0.086728-0.357001-0.358810
F -25.70876-6.657121-21.45191-21.96617
G 50.7799549.9716059.2684559.11030
H -17.460040.000000-12.43903-12.85103
ReferenceChase, 1998Chase, 1998Chase, 1998Chase, 1998
Comment red, v phase; Data last reviewed in June, 1961 white phase; Data last reviewed in June, 1961 red, iv phase; Data last reviewed in June, 1961 black phase; Data last reviewed in June, 1961

Phase change data

Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, References, Notes

Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.

Data compiled as indicated in comments:
TRC - Thermodynamics Research Center, NIST Boulder Laboratories, Chris Muzny director

Quantity Value Units Method Reference Comment
Tboil550.KN/AHonig and Kramer, 1969Uncertainty assigned by TRC = 3. K; TRC
Quantity Value Units Method Reference Comment
Ttriple870.KN/AHonig and Kramer, 1969Uncertainty assigned by TRC = 0.6 K; TRC
Ttriple317.3KN/AHonig and Kramer, 1969Metastable crystal phase; Uncertainty assigned by TRC = 0.06 K; TRC

Antoine Equation Parameters

log10(P) = A − (B / (T + C))
    P = vapor pressure (bar)
    T = temperature (K)

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Temperature (K) A B C Reference Comment
349.8 to 553.5.041622819.2396.399Stull, 1947Coefficents calculated by NIST from author's data.

In addition to the Thermodynamics Research Center (TRC) data available from this site, much more physical and chemical property data is available from the following TRC products:


References

Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, Phase change data, Notes

Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.

Cox, Wagman, et al., 1984
Cox, J.D.; Wagman, D.D.; Medvedev, V.A., CODATA Key Values for Thermodynamics, Hemisphere Publishing Corp., New York, 1984, 1. [all data]

Chase, 1998
Chase, M.W., Jr., NIST-JANAF Themochemical Tables, Fourth Edition, J. Phys. Chem. Ref. Data, Monograph 9, 1998, 1-1951. [all data]

Honig and Kramer, 1969
Honig, R.E.; Kramer, D.A., Vapor pressure data for the solid and liquid elements, RCA Rev., 1969, 1969, 285. [all data]

Stull, 1947
Stull, Daniel R., Vapor Pressure of Pure Substances. Organic and Inorganic Compounds, Ind. Eng. Chem., 1947, 39, 4, 517-540, https://doi.org/10.1021/ie50448a022 . [all data]


Notes

Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, Phase change data, References