lithium
- Formula: Li
- Molecular weight: 6.941
- IUPAC Standard InChI: InChI=1S/Li
- IUPAC Standard InChIKey: WHXSMMKQMYFTQS-UHFFFAOYSA-N
- CAS Registry Number: 7439-93-2
- Chemical structure:
This structure is also available as a 2d Mol file - Permanent link for this species. Use this link for bookmarking this species for future reference.
- Information on this page:
- Other data available:
- Data at other public NIST sites:
- NIST Atomic Spectra Database - Lines Holdings (on physics web site)
- NIST Atomic Spectra Database - Levels Holdings (on physics web site)
- NIST Atomic Spectra Database - Ground states and ionization energies (on physics web site)
- Electron-Impact Ionization Cross Sections (on physics web site)
- Gas Phase Kinetics Database
- X-ray Photoelectron Spectroscopy Database, version 5.0
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Condensed phase thermochemistry data
Go To: Top, Phase change 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 | 2.38 | kJ/mol | Review | Chase, 1998 | Data last reviewed in June, 1962 |
| Quantity | Value | Units | Method | Reference | Comment |
| S°liquid,1 bar | 33.94 | J/mol*K | Review | Chase, 1998 | Data last reviewed in June, 1962 |
| Quantity | Value | Units | Method | Reference | Comment |
| S°solid,1 bar | 29.12 ± 0.20 | J/mol*K | Review | Cox, Wagman, et al., 1984 | CODATA Review value |
| Quantity | Value | Units | Method | Reference | Comment |
| S°solid | 29.09 | J/mol*K | Review | Chase, 1998 | Data last reviewed in June, 1962 |
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) | 453.69 to 700. | 700. to 1620.12 |
|---|---|---|
| A | 32.46972 | 26.00896 |
| B | -2.635975 | 5.632375 |
| C | -6.327128 | -4.013227 |
| D | 4.230359 | 0.873686 |
| E | 0.005686 | 0.344150 |
| F | -7.117319 | -4.199690 |
| G | 74.29361 | 66.36284 |
| H | 2.380002 | 2.380002 |
| Reference | Chase, 1998 | Chase, 1998 |
| Comment | Data last reviewed in June, 1962 | Data last reviewed in June, 1962 |
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 453. |
|---|---|
| A | 169.5520 |
| B | -882.7110 |
| C | 1977.438 |
| D | -1487.312 |
| E | -1.609635 |
| F | -31.24825 |
| G | 413.6466 |
| H | 0.000000 |
| Reference | Chase, 1998 |
| Comment | Data last reviewed in June, 1962 |
Phase change data
Go To: Top, 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.
Antoine Equation Parameters
log10(P) = A − (B / (T + C))
P = vapor pressure (bar)
T = temperature (K)
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| Temperature (K) | A | B | C | Reference | Comment |
|---|---|---|---|---|---|
| 298.14 to 1599.99 | 4.98831 | 7918.984 | -9.52 | Hicks, 1963 | Coefficents calculated by NIST from author's data. |
| 1204. to 1353. | 1.58992 | 1603.966 | -711.088 | Hartmann and Schneider, 1929 | Coefficents calculated by NIST from author's data. |
References
Go To: Top, Condensed phase thermochemistry data, Phase change 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]
Cox, Wagman, et al., 1984
Cox, J.D.; Wagman, D.D.; Medvedev, V.A.,
CODATA Key Values for Thermodynamics, Hemisphere Publishing Corp., New York, 1984, 1. [all data]
Hicks, 1963
Hicks, W.T.,
Evaluation of Vapor-Pressure Data of Mercury, Lithium, Sodium, and Potassium,
J. Chem. Phys., 1963, 38, 8, 1873-1880, https://doi.org/10.1063/1.1733889
. [all data]
Hartmann and Schneider, 1929
Hartmann, H.; Schneider, R.,
Die Siedetemperaturen von Magnesium, Calcium, Strontium, Barium and Lithium,
Z. Anorg. Allg. Chem., 1929, 180, 1, 275-283, https://doi.org/10.1002/zaac.19291800129
. [all data]
Notes
Go To: Top, Condensed phase thermochemistry data, Phase change data, References
- 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 S°solid,1 bar Entropy of solid at standard conditions (1 bar) ΔfH°liquid Enthalpy of formation of liquid at standard conditions - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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