Iodine

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Condensed phase thermochemistry data

Go To: Top, Henry's Law 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
Δfliquid3.231kcal/molReviewChase, 1998Data last reviewed in June, 1982
Quantity Value Units Method Reference Comment
liquid,1 bar35.937cal/mol*KReviewChase, 1998Data last reviewed in June, 1982
Quantity Value Units Method Reference Comment
solid,1 bar27.758 ± 0.072cal/mol*KReviewCox, Wagman, et al., 1984CODATA Review value
Quantity Value Units Method Reference Comment
solid27.758cal/mol*KReviewChase, 1998Data last reviewed in June, 1982

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) 386.75 to 457.666
A 19.28040
B 1.638540×10-8
C -2.085170×10-8
D 8.898500×10-9
E 1.131891×10-10
F -2.516210
G 59.26860
H 3.232080
ReferenceChase, 1998
Comment Data last reviewed in June, 1982

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 386.75
A -46.78860
B 219.6220
C -257.9450
D 127.7060
E 1.232410
F 10.34880
G -77.07409
H 0.000000
ReferenceChase, 1998
Comment Data last reviewed in June, 1982

Henry's Law data

Go To: Top, 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: Rolf Sander

Henry's Law constant (water solution)

kH(T) = H exp(d(ln(kH))/d(1/T) ((1/T) - 1/(298.15 K)))
H = Henry's law constant for solubility in water at 298.15 K (mol/(kg*bar))
d(ln(kH))/d(1/T) = Temperature dependence constant (K)

H (mol/(kg*bar)) d(ln(kH))/d(1/T) (K) Method Reference Comment
3.04400.RN/A 
1.1 CN/A missing citation quote a paper as the source that gives only the solubility but not the Henry's law constant.
3.34800.TN/A 
3.14600.RN/A 

References

Go To: Top, Condensed phase thermochemistry data, Henry's Law 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]

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]


Notes

Go To: Top, Condensed phase thermochemistry data, Henry's Law data, References