lead sulphide
- Formula: PbS
- Molecular weight: 239.3
- IUPAC Standard InChI: InChI=1S/Pb.S
- IUPAC Standard InChIKey: XCAUINMIESBTBL-UHFFFAOYSA-N
- CAS Registry Number: 1314-87-0
- 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. - Other names: Lead monosulfide
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Gas phase thermochemistry data
Go To: Top, Gas phase ion energetics 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°gas | 131.80 | kJ/mol | Review | Chase, 1998 | Data last reviewed in June, 1973 |
| Quantity | Value | Units | Method | Reference | Comment |
| S°gas,1 bar | 251.41 | J/mol*K | Review | Chase, 1998 | Data last reviewed in June, 1973 |
Gas 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) | 2000. to 6000. |
|---|---|
| A | 77.88139 |
| B | -29.77217 |
| C | 7.546932 |
| D | -0.510226 |
| E | -25.06680 |
| F | 68.59375 |
| G | 310.5700 |
| H | 131.7960 |
| Reference | Chase, 1998 |
| Comment | Data last reviewed in June, 1973 |
Gas phase ion energetics data
Go To: Top, Gas 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.
Data evaluated as indicated in comments:
L - Sharon G. Lias
Data compiled as indicated in comments:
RDSH - Henry M. Rosenstock, Keith Draxl, Bruce W. Steiner, and John T. Herron
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| IE (evaluated) | 8.5 ± 0.5 | eV | N/A | N/A | L |
Ionization energy determinations
| IE (eV) | Method | Reference | Comment |
|---|---|---|---|
| 8.4 ± 0.5 | EI | Uy and Drowart, 1969 | RDSH |
| 8.6 ± 0.5 | EI | Colin and Drowart, 1962 | RDSH |
Appearance energy determinations
| Ion | AE (eV) | Other Products | Method | Reference | Comment |
|---|---|---|---|---|---|
| Pb+ | 11.6 ± 0.5 | S | EI | Colin and Drowart, 1962 | RDSH |
| S+ | 16.0 ± 2.0 | Pb | EI | Colin and Drowart, 1962 | RDSH |
References
Go To: Top, Gas phase thermochemistry data, Gas phase ion energetics 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]
Uy and Drowart, 1969
Uy, O.M.; Drowart, J.,
Mass spectrometric determination of the dissociation energies of the molecules BiO, BiS, BiSe and BiTe,
J. Chem. Soc. Faraday Trans., 1969, 65, 3221. [all data]
Colin and Drowart, 1962
Colin, R.; Drowart, J.,
Thermodynamic study of tin sulfide and lead sulfide using a mass spectrometer,
J. Chem. Phys., 1962, 37, 1120. [all data]
Notes
Go To: Top, Gas phase thermochemistry data, Gas phase ion energetics data, References
- Symbols used in this document:
AE Appearance energy IE (evaluated) Recommended ionization energy S°gas,1 bar Entropy of gas at standard conditions (1 bar) ΔfH°gas Enthalpy of formation of gas at standard conditions - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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