dihydrogen selenide

• Formula: H₂Se
• Molecular weight: 80.98
• IUPAC Standard InChI: InChI=1S/H2Se/h1H2 Copy

  
• IUPAC Standard InChIKey: SPVXKVOXSXTJOY-UHFFFAOYSA-N Copy
• CAS Registry Number: 7783-07-5
• Chemical structure:
  This structure is also available as a 2d Mol file or as a computed 3d SD file
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• Other names: Hydrogen selenide
• Permanent link for this species. Use this link for bookmarking this species for future reference.
• Information on this page:
  • Phase change data
  • Henry's Law data
  • Ion clustering data
  • References
  • Notes
• Other data available:
  • Reaction thermochemistry data
  • Gas phase ion energetics data
  • Vibrational and/or electronic energy levels
• Data at other public NIST sites:
  • Microwave spectra (on physics lab web site)
  • Gas Phase Kinetics Database
• Options:
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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.

Antoine Equation Parameters

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

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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)

Ion clustering 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. Searches may be limited to ion clustering reactions. A general reaction search form is also available.

Clustering reactions

 +  = ( • )

By formula: NO₂^- + H₂Se = (NO₂^- • H₂Se)

( • ) +  = ( • 2)

By formula: (NO₂^- • H₂Se) + H₂Se = (NO₂^- • 2H₂Se)

( • 2) +  = ( • 3)

By formula: (NO₂^- • 2H₂Se) + H₂Se = (NO₂^- • 3H₂Se)

 +  = ( • )

By formula: NO₃^- + H₂Se = (NO₃^- • H₂Se)

( • ) +  = ( • 2)

By formula: (NO₃^- • H₂Se) + H₂Se = (NO₃^- • 2H₂Se)

References

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

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]

Wlodek, Luczynski, et al., 1983
Wlodek, S.; Luczynski, Z.; Wincel, H., Gas - Phase Solvation of NO2- and NO3- by Ethyl Nitrate, Int. J. Mass Spectrom. Ion Phys., 1983, 52, 2-3, 149, https://doi.org/10.1016/0020-7381(83)85036-0 . [all data]

Notes

Go To: Top, Phase change data, Henry's Law data, Ion clustering data, References

• Symbols used in this document:
  

  d(ln(kH))/d(1/T)	Temperature dependence parameter for Henry's Law constant
  k°H	Henry's Law constant at 298.15K
  ΔrG°	Free energy of reaction at standard conditions
  ΔrH°	Enthalpy of reaction at standard conditions

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