mercury

• Formula: Hg
• Molecular weight: 200.59
• IUPAC Standard InChI: InChI=1S/Hg Copy

  
• IUPAC Standard InChIKey: QSHDDOUJBYECFT-UHFFFAOYSA-N Copy
• CAS Registry Number: 7439-97-6
• Chemical structure:
  This structure is also available as a 2d Mol file
• Permanent link for this species. Use this link for bookmarking this species for future reference.
• Information on this page:
  • Gas phase thermochemistry data
  • Condensed phase thermochemistry data
  • Phase change data
  • Reaction thermochemistry data
  • Henry's Law data
  • References
  • Notes
• Other data available:
  • Gas phase ion energetics data
  • Ion clustering data
• Data at other public NIST sites:
  • NIST Atomic Spectra Database - Lines Holdings (on physics web site)
  • NIST Atomic Spectra Database - Levels Holdings (on physics web site)
  • NIST Atomic Spectra Database - Ground states and ionization energies (on physics web site)
  • Gas Phase Kinetics Database
  • X-ray Photoelectron Spectroscopy Database, version 5.0
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Gas 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.

Gas Phase Heat Capacity (Shomate Equation)

C_p° = 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
    C_p = heat capacity (J/mol*K)
    H° = standard enthalpy (kJ/mol)
    S° = standard entropy (J/mol*K)
    t = temperature (K) / 1000.

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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.

Phase change 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.

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

Antoine Equation Parameters

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

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Reaction 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.

Data compiled by: Michael M. Meot-Ner (Mautner) and Sharon G. Lias

Note: Please consider using the reaction search for this species. This page allows searching of all reactions involving this species. A general reaction search form is also available. Future versions of this site may rely on reaction search pages in place of the enumerated reaction displays seen below.

Individual Reactions

(Hg⁺ • 20) +  = (Hg⁺ • 21)

By formula: (Hg⁺ • 20Hg) + Hg = (Hg⁺ • 21Hg)

(Hg⁺ • 21) +  = (Hg⁺ • 22)

By formula: (Hg⁺ • 21Hg) + Hg = (Hg⁺ • 22Hg)

(Hg⁺ • 22) +  = (Hg⁺ • 23)

By formula: (Hg⁺ • 22Hg) + Hg = (Hg⁺ • 23Hg)

(Hg⁺ • 23) +  = (Hg⁺ • 24)

By formula: (Hg⁺ • 23Hg) + Hg = (Hg⁺ • 24Hg)

(Hg⁺ • 10) +  = (Hg⁺ • 11)

By formula: (Hg⁺ • 10Hg) + Hg = (Hg⁺ • 11Hg)

(Hg⁺ • 11) +  = (Hg⁺ • 12)

By formula: (Hg⁺ • 11Hg) + Hg = (Hg⁺ • 12Hg)

(Hg⁺ • 12) +  = (Hg⁺ • 13)

By formula: (Hg⁺ • 12Hg) + Hg = (Hg⁺ • 13Hg)

(Hg⁺ • 13) +  = (Hg⁺ • 14)

By formula: (Hg⁺ • 13Hg) + Hg = (Hg⁺ • 14Hg)

(Hg⁺ • 14) +  = (Hg⁺ • 15)

By formula: (Hg⁺ • 14Hg) + Hg = (Hg⁺ • 15Hg)

(Hg⁺ • 15) +  = (Hg⁺ • 16)

By formula: (Hg⁺ • 15Hg) + Hg = (Hg⁺ • 16Hg)

(Hg⁺ • 16) +  = (Hg⁺ • 17)

By formula: (Hg⁺ • 16Hg) + Hg = (Hg⁺ • 17Hg)

(Hg⁺ • 17) +  = (Hg⁺ • 18)

By formula: (Hg⁺ • 17Hg) + Hg = (Hg⁺ • 18Hg)

(Hg⁺ • 18) +  = (Hg⁺ • 19)

By formula: (Hg⁺ • 18Hg) + Hg = (Hg⁺ • 19Hg)

(Hg⁺ • 19) +  = (Hg⁺ • 20)

By formula: (Hg⁺ • 19Hg) + Hg = (Hg⁺ • 20Hg)

(Hg⁺ • 9) +  = (Hg⁺ • 10)

By formula: (Hg⁺ • 9Hg) + Hg = (Hg⁺ • 10Hg)

(Hg⁺ • 5) +  = (Hg⁺ • 6)

By formula: (Hg⁺ • 5Hg) + Hg = (Hg⁺ • 6Hg)

(Hg⁺ • 6) +  = (Hg⁺ • 7)

By formula: (Hg⁺ • 6Hg) + Hg = (Hg⁺ • 7Hg)

(Hg⁺ • 7) +  = (Hg⁺ • 8)

By formula: (Hg⁺ • 7Hg) + Hg = (Hg⁺ • 8Hg)

(Hg⁺ • 8) +  = (Hg⁺ • 9)

By formula: (Hg⁺ • 8Hg) + Hg = (Hg⁺ • 9Hg)

(Hg⁺ • 4) +  = (Hg⁺ • 5)

By formula: (Hg⁺ • 4Hg) + Hg = (Hg⁺ • 5Hg)

Hg⁺ +  = (Hg⁺ • )

By formula: Hg⁺ + Hg = (Hg⁺ • Hg)

Henry's Law 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.

Data compiled by: Rolf Sander

Henry's Law constant (water solution)

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

References

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

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]

Marsh, 1987
Marsh, K.N., Recommended Reference Materials for the Realization of Physicochemical Properties, Blackwell Sci. Pub., Oxford, 1987. [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]

Anonymous, 1988
Anonymous, X., , NBS Spec. Publ. (U. S.) 260, 1988. [all data]

Timmermans, 1911
Timmermans, J., Researches on the freezing point of organic liquid compounds, Bull. Soc. Chim. Belg., 1911, 25, 300. [all data]

Menzies, 1913
Menzies, A.W.C., The Critical Temperature of Mercury, J. Am. Chem. Soc., 1913, 35, 1065. [all data]

Hicks, 1963
Hicks, W.T., Evaluation of Vapor-Pressure Data of Mercury, Lithium, Sodium, and Potassium, J. Chem. Phys., 1963, 38, 8, 1873-1880, https://doi.org/10.1063/1.1733889 . [all data]

Haberland, Kornmeier, et al., 1990
Haberland, H.; Kornmeier, H.; Langosh, H.; Oschwald, M.; Tanner, G., Experimental Study of the Transition from van der Waals, over Covalent to Metallic Bonding in Mercury Clusters, J. Chem. Soc. Faraday Trans., 1990, 86, 13, 2473, https://doi.org/10.1039/ft9908602473 . [all data]

Notes

Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, Phase change data, Reaction thermochemistry data, Henry's Law data, References

• Symbols used in this document:
  

  S°gas,1 bar	Entropy of gas at standard conditions (1 bar)
  S°liquid	Entropy of liquid at standard conditions
  Tboil	Boiling point
  Tc	Critical temperature
  Tfus	Fusion (melting) point
  Ttriple	Triple point temperature
  d(ln(kH))/d(1/T)	Temperature dependence parameter for Henry's Law constant
  k°H	Henry's Law constant at 298.15K
  ΔfH°gas	Enthalpy of formation of gas at standard conditions
  ΔrH°	Enthalpy of reaction at standard conditions

• Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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