sodium carbonate
- Formula: CNa2O3
- Molecular weight: 105.9884
- CAS Registry Number: 497-19-8
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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.
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔfH°liquid | -1108.51 | kJ/mol | Review | Chase, 1998 | Data last reviewed in March, 1966 |
| Quantity | Value | Units | Method | Reference | Comment |
| S°liquid,1 bar | 156.41 | J/mol*K | Review | Chase, 1998 | Data last reviewed in March, 1966 |
| Quantity | Value | Units | Method | Reference | Comment |
| ΔfH°solid | -1130.77 | kJ/mol | Review | Chase, 1998 | Data last reviewed in March, 1966 |
| Quantity | Value | Units | Method | Reference | Comment |
| S°solid | 138.79 | J/mol*K | Review | Chase, 1998 | Data last reviewed in March, 1966 |
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) | 1123.15 to 2500. |
|---|---|
| A | 189.5350 |
| B | -0.000007 |
| C | 0.000002 |
| D | -5.205100×10-9 |
| E | -0.000003 |
| F | -1183.060 |
| G | 342.9690 |
| H | -1108.510 |
| Reference | Chase, 1998 |
| Comment | Data last reviewed in March, 1966 |
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.
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| Temperature (K) | 298. to 723. | 723. to 1123. |
|---|---|---|
| A | 175.2010 | -1067.000 |
| B | -348.0580 | 2469.340 |
| C | 743.0720 | -1829.060 |
| D | -305.5510 | 505.7480 |
| E | -1.634221 | 100.1820 |
| F | -1178.980 | -607.1240 |
| G | 415.0610 | -1356.440 |
| H | -1130.770 | -1130.770 |
| Reference | Chase, 1998 | Chase, 1998 |
| Comment | Data last reviewed in March, 1966 | Data last reviewed in March, 1966 |
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
3 +
= CNa2O3 +
+
+
By formula: 3HNaO + C3H5ClO2 = CNa2O3 + C2H6O + ClNa + H2O
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔrH° | -323.3 ± 1.7 | kJ/mol | Cm | Davies, Finch, et al., 1980 | liquid phase; Heat of hydrolysis |
IR Spectrum
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Data compiled by: Coblentz Society, Inc.
- Not specified, most likely a prism, grating, or hybrid spectrometer.; (NO SPECTRUM, ONLY SCANNED IMAGE IS AVAILABLE)
- SOLID (NUJOL MULL); Not specified, most likely a prism, grating, or hybrid spectrometer.; DIGITIZED BY NIST FROM HARD COPY; 4 cm-1 resolution
Data compiled by: Timothy J. Johnson, Tanya L. Myers, Yin-Fong Su, Russell G. Tonkyn, Molly Rose K. Kelly-Gorham, and Tyler O. Danby
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.
Chase, 1998
Chase, M.W., Jr.,
NIST-JANAF Themochemical Tables, Fourth Edition,
J. Phys. Chem. Ref. Data, Monograph 9, 1998, 1-1951. [all data]
Davies, Finch, et al., 1980
Davies, R.H.; Finch, A.; Gardner, P.J.,
The standard enthalpy of formation of liquid and gaseous ethylchloroformate (C3H5O2Cl),
J. Chem. Thermodyn., 1980, 12, 291-296. [all data]
Notes
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- Symbols used in this document:
S°liquid,1 bar Entropy of liquid at standard conditions (1 bar) S°solid Entropy of solid at standard conditions ΔfH°liquid Enthalpy of formation of liquid at standard conditions ΔfH°solid Enthalpy of formation of solid at standard conditions ΔrH° Enthalpy of reaction at standard conditions - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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