Lead(II) undecanoate
- Formula: C22H42O4Pb
- Molecular weight: 577.8
- IUPAC Standard InChI: InChI=1S/2C11H22O2.Pb/c2*1-2-3-4-5-6-7-8-9-10-11(12)13;/h2*2-10H2,1H3,(H,12,13);/q;;+2/p-2
- IUPAC Standard InChIKey: RMVXOTLALVBONM-UHFFFAOYSA-L
- CAS Registry Number: 63400-07-7
- Chemical structure:
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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
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| Tfus | 383.7 | K | N/A | Adeosun and Sime, 1978 | Crystal phase 1 phase; Uncertainty assigned by TRC = 0.1 K; TRC |
Enthalpy of phase transition
| ΔHtrs (kJ/mol) | Temperature (K) | Initial Phase | Final Phase | Reference | Comment |
|---|---|---|---|---|---|
| 50.700 | 360.9 | crystaline, III | crystaline, II | Adeosun and Sime, 1978, 2 | c,II and c,I, are mesophases.; DH |
| 27.500 | 377.0 | crystaline, II | crystaline, I | Adeosun and Sime, 1978, 2 | DH |
| 1.100 | 383.7 | crystaline, I | liquid | Adeosun and Sime, 1978, 2 | DH |
Entropy of phase transition
| ΔStrs (J/mol*K) | Temperature (K) | Initial Phase | Final Phase | Reference | Comment |
|---|---|---|---|---|---|
| 140. | 360.9 | crystaline, III | crystaline, II | Adeosun and Sime, 1978, 2 | c,II; DH |
| 73. | 377.0 | crystaline, II | crystaline, I | Adeosun and Sime, 1978, 2 | DH |
| 2.9 | 383.7 | crystaline, I | liquid | Adeosun and Sime, 1978, 2 | DH |
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.
Adeosun and Sime, 1978
Adeosun, S.O.; Sime, S.J.,
The properties of molten carboxylates: Part 7. Odd-even variations in melting and mesophase formation in the lead(II) carboxylates,
Thermochim. Acta, 1978, 27, 319-27. [all data]
Adeosun and Sime, 1978, 2
Adeosun, S.O.; Sime, S.J.,
The properties of molten carboxylates: Part 7. Odd-even variations in melting and mesophase formation in the lead(II) carboxylates,
J. Thermal Anal., 1978, 27, 319-327. [all data]
Notes
Go To: Top, Phase change data, References
- Symbols used in this document:
Tfus Fusion (melting) point ΔHtrs Enthalpy of phase transition ΔStrs Entropy of phase transition - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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