Acetic acid, sodium salt

• Formula: C₂H₃NaO₂
• Molecular weight: 82.0338
• IUPAC Standard InChI: InChI=1S/C2H4O2.Na/c1-2(3)4;/h1H3,(H,3,4);/q;+1/p-1 Copy

  
• IUPAC Standard InChIKey: VMHLLURERBWHNL-UHFFFAOYSA-M Copy
• CAS Registry Number: 127-09-3
• 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:
  • Sodium acetate
  • Acetic acid, sodium salt
  • Acetic acid, sodium salt
• Other names: Sodium acetate; Sodium ethanoate
• Information on this page:
  • Condensed phase thermochemistry data
  • Phase change data
  • Reaction thermochemistry data
  • References
  • Notes
• Other data available:
  • Mass spectrum (electron ionization)
• Data at other public NIST sites:
  • X-ray Photoelectron Spectroscopy Database, version 5.0
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Condensed phase 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: Eugene S. Domalski and Elizabeth D. Hearing

Constant pressure heat capacity of solid

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

Temperature of phase transition

Enthalpy of phase transition

Entropy of phase transition

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 +  =  +  + 

By formula: 2HNaO + C₂H₃FO = C₂H₃NaO₂ + FNa + H₂O

 +  =

By formula: HNaO + C₂H₂O = C₂H₃NaO₂

 +  =  + 

By formula: HNaO + C₂H₅NO = C₂H₃NaO₂ + H₃N

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.

Franzosini, Plautz, et al., 1983
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]

Strelkev, 1955
Strelkev, I.I., Specific heat and entropy of sodium acetate, Ukr. Khim. Zh. (Russ. Ed.), 1955, 21, 551-553. [all data]

Ferloni, Sanesi, et al., 1975
Ferloni, P.; Sanesi, M.; Franzosini, P.; C4 alkanoates, Phase transitions in the alkali C1-n., Z. Naturforsch. 30a, 1975, 1447-1454. [all data]

Ferloni, Sanesi, et al., 1975, 2
Ferloni, P.; Sanesi, M.; Franzosini, P., Phase transitions in the alkali C1-n.C4 alkanoates, Z. Naturforsch., A: Phys., Phys. Chem., Kosmophys., 1975, 30, 1447-57. [all data]

Pritchard and Skinner, 1950
Pritchard, H.O.; Skinner, H.A., The heat of hydrolysis of acetyl fluoride, J. Chem. Soc., 1950, 1099. [all data]

Carson and Skinner, 1949
Carson, A.S.; Skinner, H.A., 201. Carbon-halogen bond energies in the acetyl halides, J. Chem. Soc., 1949, 936-939. [all data]

Nuttall, Laufer, et al., 1971
Nuttall, R.L.; Laufer, A.H.; Kilday, M.V., The enthalpy of formation of ketene, J. Chem. Thermodyn., 1971, 3, 167-174. [all data]

Rice and Greenberg, 1934
Rice, F.O.; Greenberg, J., Ketene. III. Heat of formation and heat of reaction with alcohols, J. Am. Chem. Soc., 1934, 38, 2268-2270. [all data]

Calvet, 1933
Calvet, E., Mesures thermochimiques directes en chimie organique vitesses et chaleurs de saponification des amides. II.-Mesures effectuees et resultats obtenus, J. Chim. Phys., 1933, 30, 140-146. [all data]

Notes

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• Symbols used in this document:
  

  Cp,solid	Constant pressure heat capacity of solid
  S°solid,1 bar	Entropy of solid at standard conditions (1 bar)
  Tfus	Fusion (melting) point
  Ttrs	Temperature of phase transition
  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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