cobalt
- Formula: Co
- Molecular weight: 58.933195
- IUPAC Standard InChI: InChI=1S/Co
- IUPAC Standard InChIKey: GUTLYIVDDKVIGB-UHFFFAOYSA-N
- CAS Registry Number: 7440-48-4
- Chemical structure:
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- 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)
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- Gas Phase Kinetics Database
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Condensed phase thermochemistry data
Go To: Top, 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 | 18.00 | kJ/mol | Review | Chase, 1998 | Data last reviewed in September, 1967 |
| Quantity | Value | Units | Method | Reference | Comment |
| S°liquid,1 bar | 41.00 | J/mol*K | Review | Chase, 1998 | Data last reviewed in September, 1967 |
| Quantity | Value | Units | Method | Reference | Comment |
| S°solid | 30.07 | J/mol*K | Review | Chase, 1998 | Data last reviewed in September, 1967 |
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) | 1768. to 3184.943 |
|---|---|
| A | 45.61355 |
| B | -3.806989 |
| C | 1.031499 |
| D | -0.096701 |
| E | -3.332744 |
| F | -8.135203 |
| G | 78.01905 |
| H | 18.00400 |
| Reference | Chase, 1998 |
| Comment | Data last reviewed in September, 1967 |
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 700. | 700. to 1394. | 1394. to 1768. |
|---|---|---|---|
| A | 10.99430 | -204.5760 | -12418.90 |
| B | 54.37500 | 515.5820 | 15326.40 |
| C | -55.51320 | -421.5500 | -7087.150 |
| D | 25.81700 | 129.5580 | 1167.310 |
| E | 0.164533 | 17.92670 | 3319.770 |
| F | -4.703300 | 94.61550 | 10138.70 |
| G | 30.32580 | -272.8560 | -10472.80 |
| H | 0.000000 | 0.000000 | 0.000000 |
| Reference | Chase, 1998 | Chase, 1998 | Chase, 1998 |
| Comment | Data last reviewed in September, 1967 | Data last reviewed in September, 1967 | Data last reviewed in September, 1967 |
References
Go To: Top, Condensed phase thermochemistry 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]
Notes
Go To: Top, Condensed phase thermochemistry 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 ΔfH°liquid Enthalpy of formation of liquid at standard conditions - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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