1,3,6,8-Tetrachlorodibenzo-p-dioxin
- Formula: C12H4Cl4O2
- Molecular weight: 321.971
- IUPAC Standard InChI: InChI=1S/C12H4Cl4O2/c13-5-1-7(15)11-9(3-5)18-12-8(16)2-6(14)4-10(12)17-11/h1-4H
- IUPAC Standard InChIKey: OTQFXRBLGNEOGH-UHFFFAOYSA-N
- CAS Registry Number: 33423-92-6
- Chemical structure:
This structure is also available as a 2d Mol file or as a computed 3d SD file
View 3d structure (requires JavaScript / HTML 5) - Other names: Dibenzo-p-dioxin, 1,3,6,8-tetrachloro-; Dibenzo(b,e)(1,4)dioxin, 1,3,6,8-tetrachloro-; 1,3,6,8-TCDD; 1,3,6,8-Tetrachlorodibenzodioxin; 1,3,6,8-Tetrachlorodibenzo-para-dioxin; 1,3,6,8-Tetrachlorobenzo-p-dioxin; 1,3,6,8-Tetrachlorodibenzo[1,4]dioxin; 1,3,6,8-Tetrachlorooxanthrene; 1,3,6,8-Tetrachlorodibenzo[b,e] [1,4]dioxin
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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 by: William E. Acree, Jr., James S. Chickos
Enthalpy of sublimation
| ΔsubH (kcal/mol) | Temperature (K) | Method | Reference | Comment |
|---|---|---|---|---|
| 28.35 ± 0.76 | 393. | ME | Li, Shibata, et al., 2004 | Based on data from 378. to 408. K. |
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. 10626 |
| Date | 1965/12/17 |
| Name(s) | 1,3,6,8-tetrachlorooxanthrene |
| State | SOLID (OIL MULL) |
| Instrument | PERKIN-ELMER 521 (GRATING) |
| Instrument parameters | GRATING CHANGES AT 2000, 630, FILTERS AT 3150, 2500, 2000, 1150, 700, 410 CM-1 |
| Path length | SPECTRAL CONTAMINATION DUE TO OIL AROUND 2927, 1475, 1375, AND PROBABLE IMPURITY (2,4-DICHLOROPHENOL) AROUND 1163, 940, 783 CM-1 |
| Resolution | 4 |
| Sampling procedure | TRANSMISSION |
| Data processing | DIGITIZED BY NIST FROM HARD COPY (FROM TWO SEGMENTS) |
References
Go To: Top, Phase change data, IR Spectrum, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Li, Shibata, et al., 2004
Li, Xian-Wei; Shibata, Etsuro; Kasai, Eiki; Nakamura, Takashi,
VAPOR PRESSURES AND ENTHALPIES OF SUBLIMATION OF 17 POLYCHLORINATED DIBENZO-p-DIOXINS AND FIVE POLYCHLORINATED DIBENZOFURANS,
Environ Toxicol Chem, 2004, 23, 2, 348-808, https://doi.org/10.1897/03-193
. [all data]
Notes
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- Symbols used in this document:
ΔsubH Enthalpy of sublimation - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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