Sodium hydroxide

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Condensed phase thermochemistry data

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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-99.637kcal/molReviewChase, 1998Data last reviewed in December, 1970
Quantity Value Units Method Reference Comment
liquid,1 bar18.14cal/mol*KReviewChase, 1998Data last reviewed in December, 1970
Quantity Value Units Method Reference Comment
Δfsolid-101.80kcal/molReviewChase, 1998Data last reviewed in December, 1970
Quantity Value Units Method Reference Comment
solid15.41cal/mol*KReviewChase, 1998Data last reviewed in December, 1970

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 (cal/mol*K)
    H° = standard enthalpy (kcal/mol)
    S° = standard entropy (cal/mol*K)
    t = temperature (K) / 1000.

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Temperature (K) 596. to 2500.
A 21.11550
B -0.596344
C -0.720131
D 0.206168
E 0.010090
F -105.8640
G 43.96080
H -99.63631
ReferenceChase, 1998
Comment Data last reviewed in December, 1970

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 (cal/mol*K)
    H° = standard enthalpy (kcal/mol)
    S° = standard entropy (cal/mol*K)
    t = temperature (K) / 1000.

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Temperature (K) 298. to 572.572. to 596.
A 100.259020.56000
B -410.55310.000000
C 705.92090.000000
D -381.74500.000000
E -1.4452400.000000
F -123.7730-107.2780
G 223.010040.54209
H -101.8000-101.8000
ReferenceChase, 1998Chase, 1998
Comment Data last reviewed in December, 1970 Data last reviewed in December, 1970

References

Go To: Top, Condensed phase thermochemistry 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]


Notes

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