selenium

• Formula: Se
• Molecular weight: 78.96
• IUPAC Standard InChI: InChI=1S/Se Copy

  
• IUPAC Standard InChIKey: BUGBHKTXTAQXES-UHFFFAOYSA-N Copy
• CAS Registry Number: 7782-49-2
• Chemical structure:
  This structure is also available as a 2d Mol file
• Other names: Selenium atom
• Permanent link for this species. Use this link for bookmarking this species for future reference.
• Information on this page:
  • Phase change data
  • Reaction thermochemistry data
  • References
  • Notes
• Other data available:
  • Gas phase ion energetics data
  • Ion clustering data
• Data at other public NIST sites:
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  • Gas Phase Kinetics Database
  • X-ray Photoelectron Spectroscopy Database, version 5.0
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• NIST / TRC Web Thermo Tables, professional edition (thermophysical and thermochemical data)

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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: John E. Bartmess

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

(CAS Reg. No. 16661-43-1 • 4294967295) +  = CAS Reg. No. 16661-43-1

By formula: (CAS Reg. No. 16661-43-1 • 4294967295Se) + Se = CAS Reg. No. 16661-43-1

(CAS Reg. No. 101021-48-1 • 4294967295) +  = CAS Reg. No. 101021-48-1

By formula: (CAS Reg. No. 101021-48-1 • 4294967295Se) + Se = CAS Reg. No. 101021-48-1

(Se₂^- • 4294967295) +  = Se₂^-

By formula: (Se₂^- • 4294967295Se) + Se = Se₂^-

References

Go To: Top, Phase change data, Reaction thermochemistry data, Notes

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

Rau, 1974
Rau, H., Vapour composition and critical constants of selenium, J. Chem. Thermodyn., 1974, 6, 525. [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]

Stoneman and Larson, 1986
Stoneman, R.C.; Larson, D.J., Photodetachment spectroscopy of SeH^- in a magnetic field, J. Phys. B:, 1986, 19, 405. [all data]

Wagman, Evans, et al., 1982
Wagman, D.D.; Evans, W.H.; Parker, V.B.; Schumm, R.H.; Halow, I.; Bailey, S.M.; Churney, K.L.; Nuttall, R.L., The NBS Tables of Chemical Thermodynamic Properties (NBS Tech Note 270), J. Phys. Chem. Ref. Data, Supl. 1, 1982, 11. [all data]

Coe, Snodgrass, et al., 1986
Coe, J.V.; Snodgrass, J.T.; Freidhoff, C.B.; McHugh, K.M.; Bowen, K.H., Photoelectron spectroscopy of the negative ion SeO^-, J. Chem. Phys., 1986, 84, 618. [all data]

Snodgrass, Coe, et al., 1989
Snodgrass, J.T.; Coe, J.V.; McHugh, K.M.; Freidhoff, C.B.; Bowen, K.H., Photoelectron Spectroscopy of the Selenium and Tellurium Containing Negative Ions: SeO₂^-, Se₂^- and Te₂^-, J. Phys. Chem., 1989, 93, 4, 1249, https://doi.org/10.1021/j100341a016 . [all data]

Notes

Go To: Top, Phase change data, Reaction thermochemistry data, References

• Symbols used in this document:
  

  Pc	Critical pressure
  Tc	Critical temperature
  ΔrH°	Enthalpy of reaction at standard conditions
  ρc	Critical density

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