sodium fluoride
- Formula: FNa
- Molecular weight: 41.9881725
- IUPAC Standard InChI: InChI=1S/FH.Na/h1H;/q;+1/p-1
- IUPAC Standard InChIKey: PUZPDOWCWNUUKD-UHFFFAOYSA-M
- CAS Registry Number: 7681-49-4
- Chemical structure:
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Gas phase thermochemistry data
Go To: Top, Condensed 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.
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔfH°gas | -290.45 | kJ/mol | Review | Chase, 1998 | Data last reviewed in December, 1968 |
| Quantity | Value | Units | Method | Reference | Comment |
| S°gas,1 bar | 217.59 | J/mol*K | Review | Chase, 1998 | Data last reviewed in December, 1968 |
Gas 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 (J/mol*K)
H° = standard enthalpy (kJ/mol)
S° = standard entropy (J/mol*K)
t = temperature (K) / 1000.
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| Temperature (K) | 3500. to 6000. |
|---|---|
| A | 36.95560 |
| B | 1.073858 |
| C | -0.105601 |
| D | 0.009001 |
| E | -0.277921 |
| F | -302.4505 |
| G | 260.4368 |
| H | -290.4533 |
| Reference | Chase, 1998 |
| Comment | Data last reviewed in December, 1968 |
Condensed phase thermochemistry 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.
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔfH°liquid | -546.20 | kJ/mol | Review | Chase, 1998 | Data last reviewed in December, 1968 |
| Quantity | Value | Units | Method | Reference | Comment |
| S°liquid,1 bar | 73.46 | J/mol*K | Review | Chase, 1998 | Data last reviewed in December, 1968 |
| Quantity | Value | Units | Method | Reference | Comment |
| ΔfH°solid | -575.38 | kJ/mol | Review | Chase, 1998 | Data last reviewed in December, 1968 |
| Quantity | Value | Units | Method | Reference | Comment |
| S°solid | 51.21 | J/mol*K | Review | Chase, 1998 | Data last reviewed in December, 1968 |
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 (J/mol*K)
H° = standard enthalpy (kJ/mol)
S° = standard entropy (J/mol*K)
t = temperature (K) / 1000.
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| Temperature (K) | 1269. to 3500. |
|---|---|
| A | 66.43350 |
| B | -2.270481 |
| C | 0.701306 |
| D | -0.074194 |
| E | 9.035070 |
| F | -563.4560 |
| G | 145.0370 |
| H | -546.2040 |
| Reference | Chase, 1998 |
| Comment | Data last reviewed in December, 1968 |
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 (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.
| Temperature (K) | 298. to 1269. |
|---|---|
| A | 53.00220 |
| B | -5.952150 |
| C | 12.56350 |
| D | 0.378227 |
| E | -0.489113 |
| F | -592.6740 |
| G | 113.8140 |
| H | -575.3840 |
| Reference | Chase, 1998 |
| Comment | Data last reviewed in December, 1968 |
Gas phase ion energetics data
Go To: Top, Gas phase thermochemistry data, 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 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
| EA (eV) | Method | Reference | Comment |
|---|---|---|---|
| 0.520 ± 0.010 | LPES | Miller, Leopold, et al., 1986 | B |
| 1.10 ± 0.20 | LPES | Miller and Lineberger, 1990 | Vertical Detachment Energy: 1.5±0.1 eV; B |
| 0.41998 | NBAE | De Vreugd, Wijnaendts van Resandt, et al., 1979 | B |
| 1.12 ± 0.21 | EIAE | Shevchenko, Iljin, et al., 1976 | From Na2BO2F; B |
| >1.34997 | EIAE | Ebinghaus, 1964 | From (NaF)2; B |
Appearance energy determinations
| Ion | AE (eV) | Other Products | Method | Reference | Comment |
|---|---|---|---|---|---|
| Na+ | 9.98 ± 0.15 | F | EI | Shevchenko, Iljin, et al., 1976 | LLK |
| Na+ | 9.9 ± 0.2 | F | EI | Hastie, Zmbov, et al., 1968 | RDSH |
| Na+ | ~12. | F | EI | Porter and Schoonmaker, 1958 | RDSH |
References
Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, Gas phase ion energetics 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]
Notes
Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, Gas phase ion energetics 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) S°liquid,1 bar Entropy of liquid at standard conditions (1 bar) S°solid Entropy of solid at standard conditions ΔfH°gas Enthalpy of formation of gas at standard conditions ΔfH°liquid Enthalpy of formation of liquid at standard conditions ΔfH°solid Enthalpy of formation of solid at standard conditions - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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