Silane, tetraethyl-
- Formula: C8H20Si
- Molecular weight: 144.3299
- IUPAC Standard InChIKey: VCZQFJFZMMALHB-UHFFFAOYSA-N
- CAS Registry Number: 631-36-7
- 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: Tetraethylsilane; Tetraethylsilicon; (C2H5)4Si
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Phase change data
Go To: Top, Mass spectrum (electron ionization), Gas Chromatography, 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
AC - William E. Acree, Jr., James S. Chickos
DH - Eugene S. Domalski and Elizabeth D. Hearing
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
Tboil | 426. | K | N/A | Sommer, Goldberg, et al., 1946 | Uncertainty assigned by TRC = 5. K; TRC |
Quantity | Value | Units | Method | Reference | Comment |
Tfus | 189.36 | K | N/A | Staveley, Warren, et al., 1954 | Uncertainty assigned by TRC = 0.2 K; TRC |
Quantity | Value | Units | Method | Reference | Comment |
Ttriple | 190.6 | K | N/A | Maslova, Rabinovich, et al., 1972 | Uncertainty assigned by TRC = 0.2 K; TRC |
Quantity | Value | Units | Method | Reference | Comment |
Tc | 606. | K | N/A | Steele, Chirico, et al., 1991 | Uncertainty assigned by TRC = 0.4 K; TRC |
Quantity | Value | Units | Method | Reference | Comment |
Pc | 23.69 | atm | N/A | Steele, Chirico, et al., 1991 | Uncertainty assigned by TRC = 0.20 atm; TRC |
Quantity | Value | Units | Method | Reference | Comment |
ρc | 1.70 | mol/l | N/A | Steele, Chirico, et al., 1991 | Uncertainty assigned by TRC = 0.02 mol/l; TRC |
Quantity | Value | Units | Method | Reference | Comment |
ΔvapH° | 9.3 ± 0.2 | kcal/mol | C | Voronkov, Baryshok, et al., 1988 | AC |
Enthalpy of vaporization
ΔvapH (kcal/mol) | Temperature (K) | Reference | Comment |
---|---|---|---|
10.3 | 287. | Stull, 1947 | Based on data from 272. to 426. 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 |
---|---|---|---|---|---|
272. to 426. | 4.34518 | 1682.102 | -39.324 | Stull, 1947 | Coefficents calculated by NIST from author's data. |
Enthalpy of fusion
ΔfusH (kcal/mol) | Temperature (K) | Reference | Comment |
---|---|---|---|
3.2051 | 190.6 | Maslova, Rabinovich, et al., 1972, 2 | DH |
3.1099 | 189.36 | Staveley, Warren, et al., 1954, 2 | DH |
3.109 | 189.4 | Domalski and Hearing, 1990 | AC |
Entropy of fusion
ΔfusS (cal/mol*K) | Temperature (K) | Reference | Comment |
---|---|---|---|
16.8 | 190.6 | Maslova, Rabinovich, et al., 1972, 2 | DH |
16.42 | 189.36 | Staveley, Warren, et al., 1954, 2 | DH |
Mass spectrum (electron ionization)
Go To: Top, Phase change data, Gas Chromatography, 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: NIST Mass Spectrometry Data Center, William E. Wallace, director
Spectrum
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Additional Data
View image of digitized spectrum (can be printed in landscape orientation).
Due to licensing restrictions, this spectrum cannot be downloaded.
Owner | NIST Mass Spectrometry Data Center Collection (C) 2014 copyright by the U.S. Secretary of Commerce on behalf of the United States of America. All rights reserved. |
---|---|
Origin | Japan AIST/NIMC Database- Spectrum MS-IW-7605 |
NIST MS number | 227699 |
Gas Chromatography
Go To: Top, Phase change data, Mass spectrum (electron ionization), 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: NIST Mass Spectrometry Data Center, William E. Wallace, director
Kovats' RI, non-polar column, isothermal
Column type | Active phase | Temperature (C) | I | Reference | Comment |
---|---|---|---|---|---|
Capillary | Apiezon L | 160. | 922. | Peetre and Smith, 1974 | |
Packed | Polymethylsiloxane, (PMS-20000) | 50. | 923.5 | Ainshtein and Shulyatieva, 1972 | He, Chromosorb W; Column length: 2. m |
Normal alkane RI, non-polar column, isothermal
Column type | Active phase | Temperature (C) | I | Reference | Comment |
---|---|---|---|---|---|
Packed | Apieson M | 160. | 922. | Ellren, Peetre, et al., 1974 | Chromosorb G AW DMCS (80-100 mesh) |
References
Go To: Top, Phase change data, Mass spectrum (electron ionization), Gas Chromatography, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Sommer, Goldberg, et al., 1946
Sommer, L.H.; Goldberg, G.M.; Derfman, E.; Whitmore, F.C.,
Organisilicaon Compounds V. β-Elimination Involving Silicon,
J. Am. Chem. Soc., 1946, 68, 1083. [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]
Maslova, Rabinovich, et al., 1972
Maslova, V.A.; Rabinovich, I.B.; Nistoalov, V.P.; Faminskaya, L.A.,
Specific heat and phase transition of some alkyl compounds of silicon, germanium, and tin,
Tr. Khim. Khim. Tekhnol., 1972, 1972, 44. [all data]
Steele, Chirico, et al., 1991
Steele, W.V.; Chirico, R.D.; Nguyen, A.; Hossenlopp, I.A.; Smith, N.K.,
DIPPR Project 871: determination of ideal-gas enthalpies of formation for key compounds: the 1989 project results
in DIPPR Data Ser. 1, 1991. [all data]
Voronkov, Baryshok, et al., 1988
Voronkov, M.G.; Baryshok, V.P.; Klyuchnikov, V.A.; Danilova, T.F.; Pepekin, V.I.; Korchagina, A.N.; Khudobin, Yu.I.,
Thermochemistry of organosilicon compounds,
Journal of Organometallic Chemistry, 1988, 345, 1-2, 27-38, https://doi.org/10.1016/0022-328X(88)80231-6
. [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]
Maslova, Rabinovich, et al., 1972, 2
Maslova, V.A.; Rabinovich, I.B.; Nistoalov, V.P.; Faminskaya, L.A.,
Specific heat and phase transitions of some alkyl compounds of silicon, germanium, and tin,
Tr. Khim. Khim. Tekhnol., 1972, (2), 44-50. [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, 1990
Domalski, Eugene S.; Hearing, Elizabeth D.,
Heat Capacities and Entropies of Organic Compounds in the Condensed Phase Volume II,
J. Phys. Chem. Ref. Data, 1990, 19, 4, 881, https://doi.org/10.1063/1.555876
. [all data]
Peetre and Smith, 1974
Peetre, I.-B.; Smith, B.E.F.,
Gas chromatographic investigation of organometallic compounds and their carbon analogues. IV. determination, calculation and correlation of Kováts retention indices for tetraalkylsilanes,
J. Chromatogr., 1974, 90, 1, 41-55, https://doi.org/10.1016/S0021-9673(01)94772-7
. [all data]
Ainshtein and Shulyatieva, 1972
Ainshtein, A.A.; Shulyatieva, T.I.,
Retention indices of alkyl- and arylchlorosilanes,
Zh. Anal. Khim., 1972, 27, 816-821. [all data]
Ellren, Peetre, et al., 1974
Ellren, O.; Peetre, I.B.; Smith, B.E.F.,
Gas chromatographic investigation of organometallic compounds and their carbon analogues. V. Use of refractive index in conjunction with Kovats retention index for the identification of organosilicon compounds,
J. Chromatogr., 1974, 93, 2, 383-392, https://doi.org/10.1016/S0021-9673(01)85402-9
. [all data]
Notes
Go To: Top, Phase change data, Mass spectrum (electron ionization), Gas Chromatography, References
- Symbols used in this document:
Pc Critical pressure Tboil Boiling point Tc Critical temperature Tfus Fusion (melting) point Ttriple Triple point temperature ΔfusH Enthalpy of fusion ΔfusS Entropy of fusion ΔvapH Enthalpy of vaporization ΔvapH° Enthalpy of vaporization at standard conditions ρc Critical density - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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