Sulfur dioxide
- Formula: O2S
- Molecular weight: 64.064
- IUPAC Standard InChIKey: RAHZWNYVWXNFOC-UHFFFAOYSA-N
- CAS Registry Number: 7446-09-5
- 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: Sulfurous acid anhydride; Fermenicide powder; Fermenticide liquid; Sulfur oxide (SO2); Sulfurous anhydride; Sulfurous oxide; SO2; Sulphur dioxide; Fermenicide liquid; Schwefeldioxyd; Siarki dwutlenek; Sulfur oxide; UN 1079; Sulfur dioxide (SO2); Sulfur superoxide
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Henry's Law data
Go To: Top, IR Spectrum, 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 by: Rolf Sander
Henry's Law constant (water solution)
kH(T) = k°H exp(d(ln(kH))/d(1/T) ((1/T) - 1/(298.15 K)))
k°H = Henry's law constant for solubility in water at 298.15 K (mol/(kg*bar))
d(ln(kH))/d(1/T) = Temperature dependence constant (K)
k°H (mol/(kg*bar)) | d(ln(kH))/d(1/T) (K) | Method | Reference | Comment |
---|---|---|---|---|
1.4 | 2900. | L | N/A | |
1.5 | 3200. | Q | N/A | Only the tabulated data between T = 273. K and T = 303. K from missing citation was used to derive kH and -Δ kH/R. Above T = 303. K the tabulated data could not be parameterized by equation (reference missing) very well. The partial pressure of water vapor (needed to convert some Henry's law constants) was calculated using the formula given by missing citation. The quantities A and α from missing citation were assumed to be identical. |
1.2 | 3100. | C | N/A | |
1.2 | 3200. | C | N/A | |
1.2 | 3100. | T | N/A | |
1.2 | 3100. | Q | N/A | missing citation refer to several references in their list of Henry's law constants but they don't assign them to specific species. |
1.3 | 3100. | N/A | N/A | |
1.2 | 3200. | X | N/A | The value is taken from the compilation of solubilities by W. Asman (unpublished). |
1.2 | X | N/A | Value given here as quoted by missing citation. | |
1.2 | C | N/A | ||
1.3 | 2800. | X | N/A | |
1.2 | 3000. | L | N/A | |
1.4 | 2800. | L | N/A | |
1.2 | 3100. | X | N/A | The value is taken from the compilation of solubilities by W. Asman (unpublished). |
1.1 | c | N/A | ||
1.2 | 3100. | c | N/A | |
1.2 | 3200. | X | N/A | The value is taken from the compilation of solubilities by W. Asman (unpublished). |
IR Spectrum
Go To: Top, Henry's Law data, Mass spectrum (electron ionization), Gas Chromatography, References, Notes
Data compiled by: Coblentz Society, Inc.
- GAS (100 mmHg DILUTED TO A TOTAL PRESSURE OF 600 mmHg WITH N2); PERKIN-ELMER 180; DIGITIZED BY NIST FROM HARD COPY (FROM TWO SEGMENTS); 4 cm-1 resolution
- GAS (100 mmHg, N2 ADDED, TOTAL PRESSURE 600 mmHg); PERKIN-ELMER 180; DIGITIZED BY NIST FROM HARD COPY (FROM TWO SEGMENTS); 1 CM-1 AT 4000 cm-1 resolution
Data compiled by: Pamela M. Chu, Franklin R. Guenther, George C. Rhoderick, and Walter J. Lafferty
- gas; IFS66V (Bruker); 3-Term B-H Apodization
0.1250, 0.2410, 0.4820, 0.9640, 1.9290 cm-1 resolution - gas; IFS66V (Bruker); Boxcar Apodization
0.1250, 0.2410, 0.4820, 0.9640, 1.9290 cm-1 resolution - gas; IFS66V (Bruker); Happ Genzel Apodization
0.1250, 0.2410, 0.4820, 0.9640, 1.9290 cm-1 resolution - gas; IFS66V (Bruker); NB Strong Apodization
0.1250, 0.2410, 0.4820, 0.9640, 1.9290 cm-1 resolution - gas; IFS66V (Bruker); Triangular Apodization
0.1250, 0.2410, 0.4820, 0.9640, 1.9290 cm-1 resolution
Mass spectrum (electron ionization)
Go To: Top, Henry's Law data, IR Spectrum, 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
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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. |
---|---|
NIST MS number | 191 |
Gas Chromatography
Go To: Top, Henry's Law data, IR Spectrum, 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
Van Den Dool and Kratz RI, polar column, temperature ramp
Column type | Active phase | I | Reference | Comment |
---|---|---|---|---|
Capillary | CP-Wax 52CB | 856. | Mahadevan and Farmer, 2006 | 60. C @ 5. min, 4. K/min, 220. C @ 30. min; Column length: 50. m; Column diameter: 0.32 mm |
Normal alkane RI, polar column, temperature ramp
Column type | Active phase | I | Reference | Comment |
---|---|---|---|---|
Capillary | DB-Wax | 882. | Chyau and Mau, 1999 | 60. m/0.25 mm/0.25 μm, N2, 3. K/min; Tstart: 40. C; Tend: 210. C |
References
Go To: Top, Henry's Law data, IR Spectrum, 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.
Mahadevan and Farmer, 2006
Mahadevan, K.; Farmer, L.,
Key Odor Impact Compounds in Three Yeast Extract Pastes,
J. Agric. Food Chem., 2006, 54, 19, 7242-7250, https://doi.org/10.1021/jf061102x
. [all data]
Chyau and Mau, 1999
Chyau, C.-C.; Mau, J.-L.,
Release of volatile compounds from microwave heating of garlic juice with 2,4-decadienals,
Food Chem., 1999, 64, 4, 531-535, https://doi.org/10.1016/S0308-8146(98)00162-9
. [all data]
Notes
Go To: Top, Henry's Law data, IR Spectrum, Mass spectrum (electron ionization), Gas Chromatography, References
- Symbols used in this document:
d(ln(kH))/d(1/T) Temperature dependence parameter for Henry's Law constant k°H Henry's Law constant at 298.15K - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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