Trichlorosilane
- Formula: Cl3HSi
- Molecular weight: 135.452
- IUPAC Standard InChIKey: ZDHXKXAHOVTTAH-UHFFFAOYSA-N
- CAS Registry Number: 10025-78-2
- 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: Silane, trichloro
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Gas phase thermochemistry 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.
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔfH°gas | -496.22 | kJ/mol | Review | Chase, 1998 | Data last reviewed in December, 1976 |
Quantity | Value | Units | Method | Reference | Comment |
S°gas,1 bar | 313.71 | J/mol*K | Review | Chase, 1998 | Data last reviewed in December, 1976 |
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) | 298. to 1000. | 1000. to 6000. |
---|---|---|
A | 64.28214 | 104.3544 |
B | 85.31427 | 2.102059 |
C | -72.09409 | -0.428952 |
D | 23.43032 | 0.029935 |
E | -0.754664 | -5.968392 |
F | -521.1214 | -542.8447 |
G | 364.8201 | 417.3879 |
H | -496.2224 | -496.2224 |
Reference | Chase, 1998 | Chase, 1998 |
Comment | Data last reviewed in December, 1976 | Data last reviewed in December, 1976 |
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:
BS - Robert L. Brown and Stephen E. Stein
TRC - Thermodynamics Research Center, NIST Boulder Laboratories, Chris Muzny director
AC - William E. Acree, Jr., James S. Chickos
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
Tboil | 304. to 305. | K | N/A | PCR Inc., 1990 | BS |
Tboil | 305.0 | K | N/A | Taylor and Walten, 1944 | Uncertainty assigned by TRC = 0.5 K; TRC |
Enthalpy of vaporization
ΔvapH (kJ/mol) | Temperature (K) | Method | Reference | Comment |
---|---|---|---|---|
24.9 | 314. | N/A | Lapidus, Nisel'son, et al., 1967 | Based on data from 303. to 325. K.; AC |
27.2 | 290. | I | Jenkins and Chambers, 1954 | Based on data from 275. to 305. K.; AC |
Antoine Equation Parameters
log10(P) = A − (B / (T + C))
P = vapor pressure (bar)
T = temperature (K)
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Temperature (K) | A | B | C | Reference |
---|---|---|---|---|
275.3 to 304.8 | 4.21609 | 1170. | -27. | Jenkins and Chambers, 1954 |
Reaction thermochemistry 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 by: John E. Bartmess
Note: Please consider using the reaction search for this species. This page allows searching of all reactions involving this species. A general reaction search form is also available. Future versions of this site may rely on reaction search pages in place of the enumerated reaction displays seen below.
Individual Reactions
Cl3Si- + =
By formula: Cl3Si- + H+ = HCl3Si
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | <1510. ± 10. | kJ/mol | D-EA | Pabst, Margrave, et al., 1977 | gas phase; From SiCl4. G3MP2B3 calculations indicate an EA of ca. 3.0 eV. |
Quantity | Value | Units | Method | Reference | Comment |
ΔrG° | <1478. ± 10. | kJ/mol | H-TS | Pabst, Margrave, et al., 1977 | gas phase; From SiCl4. G3MP2B3 calculations indicate an EA of ca. 3.0 eV. |
Gas Chromatography
Go To: Top, Gas phase thermochemistry data, Phase change data, Reaction 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 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 |
---|---|---|---|---|---|
Packed | Polymethylsiloxane, (PMS-20000) | 50. | 496.3 | Ainshtein and Shulyatieva, 1972 | He, Chromosorb W; Column length: 2. m |
Packed | SE-30 | 40. | 491. | Garzó, Fekete, et al., 1967 | N2, Chromosorb W; Column length: 2. m |
References
Go To: Top, Gas phase thermochemistry data, Phase change data, Reaction thermochemistry data, Gas Chromatography, 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]
PCR Inc., 1990
PCR Inc.,
Research Chemicals Catalog 1990-1991, PCR Inc., Gainesville, FL, 1990, 1. [all data]
Taylor and Walten, 1944
Taylor, A.G.; Walten, B.V.D.G.,
Trimethyl silane and trimethyl silicon chloride,
J. Am. Chem. Soc., 1944, 66, 842-843. [all data]
Lapidus, Nisel'son, et al., 1967
Lapidus, I.I.; Nisel'son, L.A.; Karateeva, A.A.,
Russ. J. Phys. Chem., 1967, 41, 2, 241. [all data]
Jenkins and Chambers, 1954
Jenkins, Arthur C.; Chambers, George F.,
Vapor Pressures of Silicon Compounds,
Ind. Eng. Chem., 1954, 46, 11, 2367-2369, https://doi.org/10.1021/ie50539a043
. [all data]
Pabst, Margrave, et al., 1977
Pabst, R.E.; Margrave, J.L.; Franklin, J.L.,
Electron impact studies of the tetrachlorides and tetrabromides of silicon and germanium,
Int. J. Mass Spectrom. Ion Phys., 1977, 25, 361. [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]
Garzó, Fekete, et al., 1967
Garzó, G.; Fekete, J.; Blazsó, M.,
Determination of the gas chromatographic retention indices of various organometallic compounds,
Acta Chim. Acad. Sci. Hung., 1967, 51, 4, 359-369. [all data]
Notes
Go To: Top, Gas phase thermochemistry data, Phase change data, Reaction thermochemistry data, Gas Chromatography, References
- Symbols used in this document:
S°gas,1 bar Entropy of gas at standard conditions (1 bar) Tboil Boiling point ΔfH°gas Enthalpy of formation of gas at standard conditions ΔrG° Free energy of reaction at standard conditions ΔrH° Enthalpy of reaction at standard conditions ΔvapH Enthalpy of vaporization - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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