tungsten tetrachloride oxide

Data at NIST subscription sites:

NIST subscription sites provide data under the NIST Standard Reference Data Program, but require an annual fee to access. The purpose of the fee is to recover costs associated with the development of data collections included in such sites. Your institution may already be a subscriber. Follow the links above to find out more about the data in these sites and their terms of usage.


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
Δfgas-573.49kJ/molReviewChase, 1998Data last reviewed in March, 1967
Quantity Value Units Method Reference Comment
gas,1 bar376.88J/mol*KReviewChase, 1998Data last reviewed in March, 1967

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.

View plot Requires a JavaScript / HTML 5 canvas capable browser.

View table.

Temperature (K) 1000. to 6000.
A 126.1539
B 5.718398
C -1.526930
D 0.129112
E -1.997999
F -618.0437
G 516.6654
H -573.4925
ReferenceChase, 1998
Comment Data last reviewed in March, 1967

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
Δfliquid-630.57kJ/molReviewChase, 1998Data last reviewed in March, 1967
Quantity Value Units Method Reference Comment
liquid,1 bar253.57J/mol*KReviewChase, 1998Data last reviewed in March, 1967
Quantity Value Units Method Reference Comment
Δfsolid-671.11kJ/molReviewChase, 1998Data last reviewed in March, 1967
Quantity Value Units Method Reference Comment
solid172.95J/mol*KReviewChase, 1998Data last reviewed in March, 1967

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.

View plot Requires a JavaScript / HTML 5 canvas capable browser.

View table.

Temperature (K) 484. to 1000.
A 182.0040
B 2.726818×10-7
C -3.409250×10-7
D 1.433848×10-7
E 1.966381×10-9
F -684.8371
G 473.8213
H -630.5748
ReferenceChase, 1998
Comment Data last reviewed in March, 1967

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.

View plot Requires a JavaScript / HTML 5 canvas capable browser.

View table.

Temperature (K) 298. to 484.
A 30.47496
B 392.2462
C -311.0340
D 82.19886
E 2.166380
F -687.7283
G 118.1654
H -671.1136
ReferenceChase, 1998
Comment Data last reviewed in March, 1967

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 by: William E. Acree, Jr., James S. Chickos

Enthalpy of sublimation

ΔsubH (kJ/mol) Temperature (K) Method Reference Comment
63.7 ± 1.7421.DSMLuna, Ponzi, et al., 1983Based on data from 396. to 447. K.

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.

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

Luna, Ponzi, et al., 1983
Luna, Adolfo E. Castro; Ponzi, Marta I.; Rivarola, Juan B., Vapor pressure of tungsten chloride oxide (WOCl4), J. Chem. Eng. Data, 1983, 28, 4, 349-350, https://doi.org/10.1021/je00034a001 . [all data]


Notes

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