sodium formate
- Formula: CHNaO2
- Molecular weight: 68.0072
- IUPAC Standard InChI: InChI=1S/CH2O2.Na/c2-1-3;/h1H,(H,2,3);/q;+1/p-1
- IUPAC Standard InChIKey: HLBBKKJFGFRGMU-UHFFFAOYSA-M
- CAS Registry Number: 141-53-7
- 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. - Species with the same structure:
- Other names: Sodium methanoate
- Information on this page:
- Other data available:
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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
DH - Eugene S. Domalski and Elizabeth D. Hearing
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| Ttriple | 530.46 | K | N/A | Franzosini, Plautz, et al., 1983 | Crystal phase 1 phase; Uncertainty assigned by TRC = 0.02 K; TRC |
Enthalpy of phase transition
| ΔHtrs (kJ/mol) | Temperature (K) | Initial Phase | Final Phase | Reference | Comment |
|---|---|---|---|---|---|
| 1.214 | 491.5 | crystaline, II | crystaline, I | Franzosini, Plautz, et al., 1983, 2 | DH |
| 17.710 | 530.46 | crystaline, I | liquid | Franzosini, Plautz, et al., 1983, 2 | DH |
Entropy of phase transition
| ΔStrs (J/mol*K) | Temperature (K) | Initial Phase | Final Phase | Reference | Comment |
|---|---|---|---|---|---|
| 2.47 | 491.5 | crystaline, II | crystaline, I | Franzosini, Plautz, et al., 1983, 2 | DH |
| 33.39 | 530.46 | crystaline, I | liquid | Franzosini, Plautz, et al., 1983, 2 | DH |
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: Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
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
2 +
=
+ 2
+ 2
By formula: 2HNaO + C2H6O4 = H2 + 2CHNaO2 + 2H2O
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔrH° | -293.3 ± 5.0 | kJ/mol | Cm | Jenkins and Style, 1953 | solid phase; Reanalyzed by Cox and Pilcher, 1970, Original value = -292. kJ/mol |
+
=
+
By formula: C2HBr3O + HNaO = CHNaO2 + CHBr3
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔrH° | -93.72 | kJ/mol | Cm | Pritchard and Skinner, 1950 | liquid phase; Heat of hydrolysis |
+
=
+
By formula: HNaO + C2HCl3O = CHNaO2 + CHCl3
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔrH° | -102.8 | kJ/mol | Cm | Pritchard and Skinner, 1950 | liquid phase; Heat of hydrolysis |
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.
Franzosini, Plautz, et al., 1983
Franzosini, P.; Plautz, W.A.; Westrum, E.F.,
Thermophysics of metal alkanoates. I. Heat capacities and thermodynamic properties of sodium methanoate and ethanoate,
J. Chem. Thermodyn., 1983, 15, 445. [all data]
Franzosini, Plautz, et al., 1983, 2
Franzosini, P.; Plautz, W.A.; Westrum, E.F., Jr.,
Thermophysics of metal alkanoates. I. Heat capacities and thermodynamic properties of sodium methanoate and ethanoate,
J. Chem. Thermodynam., 1983, 15, 445-456. [all data]
Jenkins and Style, 1953
Jenkins, A.D.; Style, D.W.G.,
The thermochemistry and pyrolysis of bishydroxymethyl,
J. Chem. Soc., 1953, 2337-23. [all data]
Cox and Pilcher, 1970
Cox, J.D.; Pilcher, G.,
Thermochemistry of Organic and Organometallic Compounds, Academic Press, New York, 1970, 1-636. [all data]
Pritchard and Skinner, 1950
Pritchard, H.O.; Skinner, H.A.,
The heats of hydrolysis of chloral and bromal, and the C-C bond dissociation energies in chloral and bromal,
J. Am. Chem. Soc., 1950, 1928-1931. [all data]
Notes
Go To: Top, Phase change data, Reaction thermochemistry data, References
- Symbols used in this document:
Ttriple Triple point temperature ΔHtrs Enthalpy of phase transition ΔStrs Entropy of phase transition ΔrH° Enthalpy of reaction at standard conditions - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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