Disulfide, bis(2-methylpropyl)
- Formula: C8H18S2
- Molecular weight: 178.359
- IUPAC Standard InChIKey: ONJROLGQWMBXAP-UHFFFAOYSA-N
- CAS Registry Number: 1518-72-5
- 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: Isobutyl disulfide; Diisobutyl disulfide; Bis(2-methylpropyl) disulphide; 2,7-Dimethyl-4,5-dithiaoctane; Di(2-methylpropyl) disulfide; diisobutyl disulphide
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Gas phase thermochemistry data
Go To: Top, Condensed phase thermochemistry data, 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: Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔfH°gas | -170.9 ± 2.2 | kJ/mol | Ccb | Mackle and McClean, 1964 | Reanalyzed by Cox and Pilcher, 1970, Original value = -169.9 ± 2.1 kJ/mol |
Condensed 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.
Data compiled by: Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔfH°liquid | -232.8 ± 1.4 | kJ/mol | Ccb | Mackle and McClean, 1964 | Reanalyzed by Cox and Pilcher, 1970, Original value = -231.8 ± 1.2 kJ/mol |
Quantity | Value | Units | Method | Reference | Comment |
ΔcH°liquid | -6692.4 ± 1.2 | kJ/mol | Ccb | Mackle and McClean, 1964 | Reanalyzed by Cox and Pilcher, 1970, Original value = -6685.1 ± 1.2 kJ/mol |
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:
TRC - Thermodynamics Research Center, NIST Boulder Laboratories, Chris Muzny director
AC - William E. Acree, Jr., James S. Chickos
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
DRB - Donald R. Burgess, Jr.
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
Tboil | 493. | K | N/A | Birch and Norris, 1925 | Uncertainty assigned by TRC = 15. K; TRC |
Quantity | Value | Units | Method | Reference | Comment |
ΔvapH° | 57.2 ± 0.1 | kJ/mol | C | Kusano, 1985 | AC |
ΔvapH° | 57.2 | kJ/mol | N/A | Shimizu, Saito, et al., 1981 | AC |
ΔvapH° | 62. ± 2. | kJ/mol | E | Mackle and McClean, 1964 | ALS |
ΔvapH° | 61.9 | kJ/mol | N/A | Mackle and McClean, 1964 | DRB |
Gas Chromatography
Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, Phase change 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 | Apiezon M | 130. | 1208. | Garbuzov, Misharina, et al., 1985 | He or N2, Chromosorb W, AW-DMCS; Column length: 2.1 m |
Normal alkane RI, non-polar column, temperature ramp
Column type | Active phase | I | Reference | Comment |
---|---|---|---|---|
Capillary | OV-101 | 1178. | Tamura, Nakamoto, et al., 1995 | N2, 2. K/min; Column length: 50. m; Column diameter: 0.25 mm; Tstart: 80. C; Tend: 200. C |
Capillary | OV-101 | 1182. | Tamura, Nakamoto, et al., 1995 | N2, 2. K/min; Column length: 50. m; Column diameter: 0.25 mm; Tstart: 80. C; Tend: 200. C |
Normal alkane RI, non-polar column, custom temperature program
Column type | Active phase | I | Reference | Comment |
---|---|---|---|---|
Capillary | SE-30 | 1205. | Vinogradov, 2004 | Program: not specified |
Packed | Apiezon M | 1208. | Golovnya, Misharina, et al., 1983 | N2, Chromosorb W AW/DMCS; Column length: 5.6 m; Program: 60C(7min), 100C(7min), 150C isothermal |
Normal alkane RI, polar column, custom temperature program
Column type | Active phase | I | Reference | Comment |
---|---|---|---|---|
Capillary | Carbowax 20M | 1435. | Vinogradov, 2004 | Program: not specified |
Capillary | DB-Wax | 1428. | Peng, Yang, et al., 1991 | Program: not specified |
References
Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, Phase change data, Gas Chromatography, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Mackle and McClean, 1964
Mackle, H.; McClean, R.T.B.,
Studies in the thermochemistry of organic sulphides. Part 5.-Dithia-alkanes,
Trans. Faraday Soc., 1964, 60, 669-672. [all data]
Cox and Pilcher, 1970
Cox, J.D.; Pilcher, G.,
Thermochemistry of Organic and Organometallic Compounds, Academic Press, New York, 1970, 1-636. [all data]
Birch and Norris, 1925
Birch, S.F.; Norris, W.S.G.P.,
The Chemistry of Petroleum Part I. The Occurence of Compounds of Sulphur in the Liqht Distillate from the Crude Oil of Maindan-i-Naftun,
J. Chem. Soc., 1925, 127, 898. [all data]
Kusano, 1985
Kusano, Kazuhito,
Micro conduction calorimeters to measure enthalpies of vaporization,
Thermochimica Acta, 1985, 88, 1, 109-120, https://doi.org/10.1016/0040-6031(85)85418-6
. [all data]
Shimizu, Saito, et al., 1981
Shimizu, M.; Saito, Y.; Kusano, K.,
, Preprints 17th Conf. Chem. Thermodyn. Thermal Anal., Japan, 1981, 50. [all data]
Garbuzov, Misharina, et al., 1985
Garbuzov, V.G.; Misharina, T.A.; Aerov, A.F.; Golovnya, R.V.,
Gas chromatographic retention indices for sulphur(II)-containing organic substances,
J. Anal. Chem. USSR (Engl. Transl.), 1985, 40, 4, 576-586. [all data]
Tamura, Nakamoto, et al., 1995
Tamura, H.; Nakamoto, H.; Yang, R.-H.; Sugisawa, H.,
Characteristic aroma compounds in green algae (Ulva pertusa) volatiles,
Nippon Shokuhin Kagaku Kogaku Kaishi, 1995, 42, 11, 887-891, https://doi.org/10.3136/nskkk.42.887
. [all data]
Vinogradov, 2004
Vinogradov, B.A.,
Production, composition, properties and application of essential oils, 2004, retrieved from http://viness.narod.ru. [all data]
Golovnya, Misharina, et al., 1983
Golovnya, R.V.; Misharina, T.A.; Garbuzov, V.G.; Medvedyev, F.A.,
Volatile sulfur containing compounds in simulated meat flavour and their comparison with the constituents of natural aroma,
Nahrung, 1983, 27, 3, 237-249, https://doi.org/10.1002/food.19830270314
. [all data]
Peng, Yang, et al., 1991
Peng, C.T.; Yang, Z.C.; Ding, S.F.,
Prediction of rentention idexes. II. Structure-retention index relationship on polar columns,
J. Chromatogr., 1991, 586, 1, 85-112, https://doi.org/10.1016/0021-9673(91)80028-F
. [all data]
Notes
Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, Phase change data, Gas Chromatography, References
- Symbols used in this document:
Tboil Boiling point ΔcH°liquid Enthalpy of combustion of liquid at standard conditions ΔfH°gas Enthalpy of formation of gas at standard conditions ΔfH°liquid Enthalpy of formation of liquid at standard conditions ΔvapH° Enthalpy of vaporization at standard conditions - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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