Disiloxane, 1,3-dichloro-1,1,3,3-tetramethyl-
- Formula: C4H12Cl2OSi2
- Molecular weight: 203.214
- IUPAC Standard InChI: InChI=1S/C4H12Cl2OSi2/c1-8(2,5)7-9(3,4)6/h1-4H3
- IUPAC Standard InChIKey: DMEXFOUCEOWRGD-UHFFFAOYSA-N
- CAS Registry Number: 2401-73-2
- 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: 1,3-Dichlorotetramethyldisiloxane; 1,3-Dichloro-1,1,3,3-tetramethyl disiloxane; Sym-dichlorotetramethyldisiloxane
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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:
AC - William E. Acree, Jr., James S. Chickos
Enthalpy of vaporization
| ΔvapH (kJ/mol) | Temperature (K) | Reference | Comment |
|---|---|---|---|
| 40.3 | 318. | Sokolov, Karapet'yants, et al., 1971 | Based on data from 303. to 403. 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 | Comment |
|---|---|---|---|---|---|
| 303. to 403. | 4.10855 | 1417.136 | -64.839 | Sokolov, Karapetiyaits, et al., 1971 | Coefficents calculated by NIST from author's data. |
IR Spectrum
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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: Coblentz Society, Inc.
Condensed Phase Spectrum
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Notice: Except where noted, spectra from this collection were measured on dispersive instruments, often in carefully selected solvents, and hence may differ in detail from measurements on FTIR instruments or in other chemical environments. More information on the manner in which spectra in this collection were collected can be found here.
Notice: Concentration information is not available for this spectrum and, therefore, molar absorptivity values cannot be derived.
Additional Data
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| Owner | COBLENTZ SOCIETY Collection (C) 2018 copyright by the U.S. Secretary of Commerce on behalf of the United States of America. All rights reserved. |
|---|---|
| Origin | DOW CORNING CORP. |
| Source reference | COBLENTZ NO. 5558 |
| Date | 1964/12/15 |
| Name(s) | bis[chloro(dimethyl)silyl] ether 1,3-dichloro-1,1,3,3-tetramethyldisiloxane 1,3-DICHLORO-1,1,3,3-TETRAMETHYLDISILOXANE |
| State | SOLUTION (6% IN CCl4 FOR 3800-1320, 3% IN CS2 FOR 1320-630, AND 6% IN CCl4 FOR 630-220 CM-1) |
| Instrument | PERKIN-ELMER 521 (GRATING) |
| Instrument parameters | FILTERS AT 3150, 2500, 2000, 1150, 700, 410. GRATING CHANGES: 2000, 630 CM-1 |
| Path length | 0.011 CM, 0.011 CM, AND 0.021 CM |
| Resolution | 2 |
| Sampling procedure | TRANSMISSION |
| Data processing | DIGITIZED BY NIST FROM HARD COPY (FROM TWO SEGMENTS) |
| Boiling point | 135 C AT 750 mmHg |
Mass spectrum (electron ionization)
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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: NIST Mass Spectrometry Data Center, William E. Wallace, director
Spectrum
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Additional Data
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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-7543 |
| NIST MS number | 237654 |
References
Go To: Top, Phase change data, IR Spectrum, Mass spectrum (electron ionization), Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Sokolov, Karapet'yants, et al., 1971
Sokolov, V.B.; Karapet'yants, M.K.; Rumyantseva, N.D.; Drozdov, V.A.,
Russ. J. Phys. Chem., 1971, 45, 9, 1332. [all data]
Sokolov, Karapetiyaits, et al., 1971
Sokolov, V.B.; Karapetiyaits, M.H.; Rumiantseva, N.D.; Drozdov, V.A.,
Temperature Dependence of Saturated Vapor Pressure of 1,3-Dichlorotetramethyldisyloxane and 1,3-Dichlorotetraethyldisyloxane,
Zh. Fiz. Khim., 1971, 45, 9, 2353-2354. [all data]
Notes
Go To: Top, Phase change data, IR Spectrum, Mass spectrum (electron ionization), References
- Symbols used in this document:
ΔvapH Enthalpy of vaporization - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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