Tetraethyllead
- Formula: C8H20Pb
- Molecular weight: 323.4
- IUPAC Standard InChIKey: MRMOZBOQVYRSEM-UHFFFAOYSA-N
- CAS Registry Number: 78-00-2
- 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: Plumbane, tetraethyl-; Lead tetraethyl; Tetraethylplumbane; TEL; (C2H5)4Pb; Czteroetylek olowiu; NCI-C54988; Tel-tml, reacted; Tetra(methylethyl)lead; Piombo tetra-etile; Rcra waste number P110; Tetraethylolovo; NSC 22314
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Phase change 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.
Data compiled as indicated in comments:
TRC - Thermodynamics Research Center, NIST Boulder Laboratories, Chris Muzny director
MS - José A. Martinho Simões
AC - William E. Acree, Jr., James S. Chickos
DH - Eugene S. Domalski and Elizabeth D. Hearing
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
Tboil | 455.7 | K | N/A | Dibrivnyi, Dolbneva, et al., 1986 | Uncertainty assigned by TRC = 1.5 K; TRC |
Quantity | Value | Units | Method | Reference | Comment |
Tfus | 142.94 | K | N/A | Staveley, Warren, et al., 1954 | Uncertainty assigned by TRC = 0.2 K; TRC |
Quantity | Value | Units | Method | Reference | Comment |
Ttriple | 141.49 | K | N/A | Rabinovich, Nistratov, et al., 1989 | Crystal phase 1 phase; Uncertainty assigned by TRC = 0.02 K; TRC |
Ttriple | 139.41 | K | N/A | Rabinovich, Nistratov, et al., 1989 | Metastable crystal phase; Uncertainty assigned by TRC = 0.02 K; TRC |
Quantity | Value | Units | Method | Reference | Comment |
ΔvapH° | 13.5 ± 0.24 | kcal/mol | CC-RB | Abraham and Irving, 1980 | Other values for the enthalpy of vaporization have been reported: 13.6 ± 0.60 kcal/mol Buckler and Norrish, 1936 and 13.4 ± 0.50 kcal/mol Scott, 1972.; MS |
ΔvapH° | 13.5 ± 0.24 | kcal/mol | C | Abraham and Irving, 1980, 2 | AC |
Enthalpy of vaporization
ΔvapH (kcal/mol) | Temperature (K) | Reference | Comment |
---|---|---|---|
13.7 | 326. | Stull, 1947 | Based on data from 311. to 456. K.; AC |
13.5 | 308. | Buckler and Norrish, 1936, 2 | Based on data from 273. to 343. K.; AC |
13.6 | 387. | Jones, Evans, et al., 1935 | Based on data from 351. to 423. K.; AC |
Antoine Equation Parameters
log10(P) = A − (B / (T + C))
P = vapor pressure (atm)
T = temperature (K)
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Temperature (K) | A | B | C | Reference | Comment |
---|---|---|---|---|---|
311.6 to 456. | 5.01734 | 1984.384 | -60.506 | Stull, 1947 | Coefficents calculated by NIST from author's data. |
Enthalpy of fusion
ΔfusH (kcal/mol) | Temperature (K) | Reference | Comment |
---|---|---|---|
2.101 | 142.94 | Staveley, Warren, et al., 1954, 2 | DH |
2.18 | 141.4 | Domalski and Hearing, 1996 | AC |
Entropy of fusion
ΔfusS (cal/mol*K) | Temperature (K) | Reference | Comment |
---|---|---|---|
14.70 | 142.94 | Staveley, Warren, et al., 1954, 2 | DH |
Temperature of phase transition
Ttrs (K) | Initial Phase | Final Phase | Reference | Comment |
---|---|---|---|---|
90.8 | crystaline, III | liquid | Rabinovich, Nistratov, et al., 1989, 2 | Glass/supercooled liquid transition.; DH |
Enthalpy of phase transition
ΔHtrs (kcal/mol) | Temperature (K) | Initial Phase | Final Phase | Reference | Comment |
---|---|---|---|---|---|
2.177 | 141.4 | crystaline, II | liquid | Rabinovich, Nistratov, et al., 1989, 2 | DH |
2.173 | 139.41 | crystaline, I | liquid | Rabinovich, Nistratov, et al., 1989, 2 | DH |
Entropy of phase transition
ΔStrs (cal/mol*K) | Temperature (K) | Initial Phase | Final Phase | Reference | Comment |
---|---|---|---|---|---|
15.40 | 141.4 | crystaline, II | liquid | Rabinovich, Nistratov, et al., 1989, 2 | DH |
15.59 | 139.41 | crystaline, I | liquid | Rabinovich, Nistratov, et al., 1989, 2 | DH |
Gas phase ion energetics 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.
Data compiled by: Henry M. Rosenstock, Keith Draxl, Bruce W. Steiner, and John T. Herron
Ionization energy determinations
IE (eV) | Method | Reference |
---|---|---|
11.1 | EI | deRidder and Dijkstra, 1967 |
Appearance energy determinations
Ion | AE (eV) | Other Products | Method | Reference | Comment |
---|---|---|---|---|---|
C2H5Pb+ | 12.2 | ? | EI | deRidder and Dijkstra, 1967 | |
C4H10Pb+ | 12.2 | ? | EI | deRidder and Dijkstra, 1967 | |
C6H15Pb+ | 10.8 | C2H5 | EI | deRidder and Dijkstra, 1967 | |
PbH+ | 14.4 | ? | EI | deRidder and Dijkstra, 1967 | |
Pb+ | 11.6 | ? | EI | deRidder and Dijkstra, 1967 |
References
Go To: Top, Phase change 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.
Dibrivnyi, Dolbneva, et al., 1986
Dibrivnyi, V.N.; Dolbneva, T.N.; Dikii, M.A.,
Saturated vapor pressure and vaporization enthalpies of aromatic peroxides
in Vses. Konf. po Kalorimetrii i Khim. Termodinamike, 11th, Novosibirsk, Nr 2, p 115, 1986. [all data]
Staveley, Warren, et al., 1954
Staveley, L.A.K.; Warren, J.B.; Paget, H.P.; Dowrick, D.J.,
Some Thermodynamic Properties of Compounds of the Formula MX4 II. Tetraalkyl Compounds,
J. Chem. Soc., 1954, 1954, 1992. [all data]
Rabinovich, Nistratov, et al., 1989
Rabinovich, I.B.; Nistratov, V.P.; Sheiman, M.S.; Karataev, E.N.; Kamelova, G.P.; Feshchenko, I.A.,
Heat capacity, phase transitions, and thermodynamic functions of tetraethyllead,
Zh. Fiz. Khim., 1989, 63, 2520-4. [all data]
Abraham and Irving, 1980
Abraham, M.H.; Irving, R.J.,
J. Chem. Thermodyn., 1980, 12, 539. [all data]
Buckler and Norrish, 1936
Buckler, E.J.; Norrish, R.G.W.,
J. Chem. Soc., 1936, 1567.. [all data]
Scott, 1972
Scott, D.W.,
J. Chem. Thermodyn., 1972, 4, 99. [all data]
Abraham and Irving, 1980, 2
Abraham, M.H.; Irving, R.J.,
Enthalpies of vaporization of tetramethyltin, tetraethyltin, tetra-n-propyltin, and tetraethyl-lead, and a survey of the Group IV tetramethyl and tetraethyl compounds,
The Journal of Chemical Thermodynamics, 1980, 12, 6, 539-544, https://doi.org/10.1016/0021-9614(80)90183-4
. [all data]
Stull, 1947
Stull, Daniel R.,
Vapor Pressure of Pure Substances. Organic and Inorganic Compounds,
Ind. Eng. Chem., 1947, 39, 4, 517-540, https://doi.org/10.1021/ie50448a022
. [all data]
Buckler and Norrish, 1936, 2
Buckler, E.J.; Norrish, R.G.,
346. The vapour-pressure curve of tetraethyl-lead from 0«65533» to 70«65533»,
J. Chem. Soc., 1936, 1567, https://doi.org/10.1039/jr9360001567
. [all data]
Jones, Evans, et al., 1935
Jones, W.J.; Evans, D.P.; Gulwell, T.; Griffiths, D.C.,
10. Some physical properties of the alkyl compounds of mercury, tin, and lead,
J. Chem. Soc., 1935, 39, https://doi.org/10.1039/jr9350000039
. [all data]
Staveley, Warren, et al., 1954, 2
Staveley, L.A.K.; Warren, J.B.; Paget, H.P.; Dowrick, D.J.,
Some thermodynamic properties of compounds of the formula MX4. Part II. Tetra-alkyl compounds, 1954, J. [all data]
Domalski and Hearing, 1996
Domalski, Eugene S.; Hearing, Elizabeth D.,
Heat Capacities and Entropies of Organic Compounds in the Condensed Phase. Volume III,
J. Phys. Chem. Ref. Data, 1996, 25, 1, 1, https://doi.org/10.1063/1.555985
. [all data]
Rabinovich, Nistratov, et al., 1989, 2
Rabinovich, I.B.; Nistratov, V.P.; Sheiman, M.S.; Karataev, E.N.; Kamelova, G.P.; Feshchenko, I.A.,
Heat capacity, phase transitions, and thermodynamic function of tetraethyllead,
Zhur. Fiz. Khim., 1989, 63, 2520-2524. [all data]
deRidder and Dijkstra, 1967
deRidder, J.J.; Dijkstra, G.,
Mass spectra of the tetramethyl and tetraethyl compounds of carbon, silicon, germanium, tin and lead,
Rec. Trav. Chim., 1967, 86, 737. [all data]
Notes
Go To: Top, Phase change data, Gas phase ion energetics data, References
- Symbols used in this document:
AE Appearance energy Tboil Boiling point Tfus Fusion (melting) point Ttriple Triple point temperature Ttrs Temperature of phase transition ΔHtrs Enthalpy of phase transition ΔStrs Entropy of phase transition ΔfusH Enthalpy of fusion ΔfusS Entropy of fusion ΔvapH Enthalpy of vaporization ΔvapH° Enthalpy of vaporization at standard conditions - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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