sodium fluoride

• Formula: FNa
• Molecular weight: 41.9881725
• IUPAC Standard InChI: InChI=1S/FH.Na/h1H;/q;+1/p-1 Copy

  
• IUPAC Standard InChIKey: PUZPDOWCWNUUKD-UHFFFAOYSA-M Copy
• CAS Registry Number: 7681-49-4
• Chemical structure:
  This structure is also available as a 2d Mol file or as a computed 3d SD file
  The 3d structure may be viewed using Java or Javascript.
• Permanent link for this species. Use this link for bookmarking this species for future reference.
• Information on this page:
  • Gas phase thermochemistry data
  • Gas phase ion energetics data
  • Ion clustering data
  • References
  • Notes
• Other data available:
  • Condensed phase thermochemistry data
  • Reaction thermochemistry data
  • Constants of diatomic molecules
• Data at other public NIST sites:
  • Microwave spectra (on physics lab web site)
  • Computational Chemistry Comparison and Benchmark Database
  • Gas Phase Kinetics Database
  • X-ray Photoelectron Spectroscopy Database, version 5.0
• Options:
  • Switch to calorie-based units

Gas phase thermochemistry data

Go To: Top, Gas phase ion energetics data, Ion clustering data, References, Notes

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.

View plot Requires a JavaScript / HTML 5 canvas capable browser.

View table.

Gas phase ion energetics data

Go To: Top, Gas phase thermochemistry data, Ion clustering 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 as indicated in comments:
LLK - Sharon G. Lias, Rhoda D. Levin, and Sherif A. Kafafi
RDSH - Henry M. Rosenstock, Keith Draxl, Bruce W. Steiner, and John T. Herron
B - John E. Bartmess

Electron affinity determinations

Appearance energy determinations

Ion clustering data

Go To: Top, Gas phase thermochemistry data, Gas phase ion energetics 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 as indicated in comments:
B - John E. Bartmess
M - 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. Searches may be limited to ion clustering reactions. A general reaction search form is also available.

Clustering reactions

Be₂F₅^- +  = (Be₂F₅^- • )

By formula: Be₂F₅^- + FNa = (Be₂F₅^- • FNa)

(F₂Sc⁺ • ) +  = (F₂Sc⁺ • 2)

By formula: (F₂Sc⁺ • FNa) + FNa = (F₂Sc⁺ • 2FNa)

(F₂Sc⁺ • 2) +  = (F₂Sc⁺ • 3)

By formula: (F₂Sc⁺ • 2FNa) + FNa = (F₂Sc⁺ • 3FNa)

(F₂Sc⁺ • 3) +  = (F₂Sc⁺ • 4)

By formula: (F₂Sc⁺ • 3FNa) + FNa = (F₂Sc⁺ • 4FNa)

 +  = ( • )

By formula: Na⁺ + FNa = (Na⁺ • FNa)

( • ) +  = ( • 2)

By formula: (Na⁺ • FNa) + FNa = (Na⁺ • 2FNa)

References

Go To: Top, Gas phase thermochemistry data, Gas phase ion energetics data, Ion clustering 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]

Miller, Leopold, et al., 1986
Miller, T.M.; Leopold, D.G.; Murray, K.K.; Lineberger, W.C., Electron Affinities of the Alkali Halides and the Structure of their Negative Ions, J. Chem. Phys., 1986, 85, 5, 2368, https://doi.org/10.1063/1.451091 . [all data]

Miller and Lineberger, 1990
Miller, T.M.; Lineberger, W.C., Mass Spectra and Photodetachment of Sodium Fluoride Negative Ion Clusters, Int. J. Mass Spectrom. Ion Proc., 1990, 102, 239, https://doi.org/10.1016/0168-1176(90)80063-9 . [all data]

De Vreugd, Wijnaendts van Resandt, et al., 1979
De Vreugd, C.; Wijnaendts van Resandt, R.W.; Los, J.; Smith, B., Differential Cross Sections for Collisions of Negative Halogen Ions and Alkali Atoms, Chem. Phys., 1979, 42, 3, 305, https://doi.org/10.1016/0301-0104(79)80078-6 . [all data]

Shevchenko, Iljin, et al., 1976
Shevchenko, V.E.; Iljin, M.K.; Nikitin, O.T.; Sidorov, L.N., Mass-spectrometric study of mixed dimers M₂BO₂F, Int. J. Mass Spectrom. Ion Phys., 1976, 21, 279. [all data]

Ebinghaus, 1964
Ebinghaus, H.Z., Negative Ionen aus Alkalihalogeniden und Electronenaffinitaten der Alkalimetalle und Alkalihalogenide, Z. Naturfor., 1964, 19A, 727. [all data]

Hastie, Zmbov, et al., 1968
Hastie, J.W.; Zmbov, K.F.; Margrave, J.L., Mass spectrometric studies at high temperatures. XXIII. Vapor equilibria over molten NaSnF₃ and KSnF₃, J. Inorg. Nucl. Chem., 1968, 30, 729. [all data]

Porter and Schoonmaker, 1958
Porter, R.F.; Schoonmaker, R.C., Mass spectrometric study of the vaporization of LiF, NaF, and LiF-NaF mixtures, J. Chem. Phys., 1958, 29, 1070. [all data]

Nikitin, Sorokin, et al., 1980
Nikitin, M.I.; Sorokin, I.D.; Skokan, E.V.; Sidorov, L.N., Negative Ions in the Saturated Vapors of the Potassium Fluoride - Hafnium Tetrafluoride and Potassium Fluoride - Beryllium Difluoride Systems, Russ. J. Phys. Chem., 1980, 54, page]. [all data]

Tsirlina, Gusarov, et al., 1986
Tsirlina, E.A.; Gusarov, A.V.; Gorokhov, L.N., High Temp., 1986, 14, 1064. [all data]

Notes

Go To: Top, Gas phase thermochemistry data, Gas phase ion energetics data, Ion clustering data, References

• Symbols used in this document:
  

  AE	Appearance energy
  EA	Electron affinity
  S°gas,1 bar	Entropy of gas at standard conditions (1 bar)
  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
• The National Institute of Standards and Technology (NIST) uses its best efforts to deliver a high quality copy of the Database and to verify that the data contained therein have been selected on the basis of sound scientific judgment. However, NIST makes no warranties to that effect, and NIST shall not be liable for any damage that may result from errors or omissions in the Database.
• Customer support for NIST Standard Reference Data products.