ethyl methyl disulfide C3H8S2 structure

Flashcard maker : Isabella Parker

C3H8S2 structure
Molecular Formula C3H8S2
Average mass 108.226 Da
Density 1.0±0.1 g/cm3
Boiling Point 121.0±9.0 °C at 760 mmHg
Flash Point 32.5±7.7 °C
Molar Refractivity 31.9±0.3 cm3
Polarizability 12.7±0.5 10-24cm3
Surface Tension 32.4±3.0 dyne/cm
Molar Volume 106.0±3.0 cm3
  • Experimental data
  • Predicted – ACD/Labs
  • Predicted – EPISuite
  • Predicted – ChemAxon
  • Experimental Physico-chemical Properties
    • Experimental Boiling Point:

      136-138 °C Food and Agriculture Organization of the United Nations Ethyl methyl disulfide
      57 °C / 58 mmHg (138.5071 °C / 760 mmHg)
      FooDB FDB010895
    • Experimental Refraction Index:

      1.41-1.418 Food and Agriculture Organization of the United Nations Ethyl methyl disulfide
      20 FooDB FDB010895
  • Miscellaneous
    • Appearance:

      Clear, colourless or pale yellow liquid; Sulfureous aroma Food and Agriculture Organization of the United Nations Ethyl methyl disulfide
  • Gas Chromatography
    • Retention Index (Kovats):

      821 (estimated with error: 46) NIST Spectra mainlib_75496, replib_98924
      833 (Program type: Isothermal; Col… (show more) umn class: Standard non-polar; Column diameter: 0.32 mm; Column length: 50 m; Column type: Capillary; Start T: 130 C; CAS no: 20333395; Active phase: OV-101; Carrier gas: He; Data type: Kovats RI; Authors: Misharina, T.A.; Golovnya, R.V., Regularities of retention of a pseudohomologous series of dialkylpolysulfides in capillary gas chromatography, Zh. Anal. Khim., 44, 1989, 514-519.) NIST Spectra nist ri
      853 (Program type: Isothermal; Col… (show more) umn class: Semi-standard non-polar; Column length: 2.1 m; Column type: Packed; Start T: 130 C; CAS no: 20333395; Active phase: Apiezon M; Carrier gas: He or N2; Substrate: Chromosorb W, AW-DMCS; Data type: Kovats RI; Authors: 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.), 40(4), 1985, 576-586, In original 709-720.) NIST Spectra nist ri
      830 (Program type: Isothermal; Col… (show more) umn class: Semi-standard non-polar; Column length: 2.1 m; Column type: Packed; Start T: 60 C; CAS no: 20333395; Active phase: Apiezon M; Substrate: Chromosorb WAW; Data type: Kovats RI; Authors: Mikhailova, T.V.; Gren, A.I.; Vysotskaja, L.E.; Misharina, T.A.; Vitt, S.V.; Golovnya, R.V., Identification of sulphur-organic compounds obtained by thermal treatment of the meat broths in the presence of alkyl-mercaptopropanol, Nahrung, 29(7), 1985, 671-680.) NIST Spectra nist ri
      1156 (Program type: Ramp; Column cl… (show more) ass: Standard polar; Column length: 5.5 m; Column type: Packed; Heat rate: 10 K/min; Start T: 70 C; End T: 175 C; Start time: 9 min; CAS no: 20333395; Active phase: PEG-20M; Carrier gas: N2; Substrate: Celite; Data type: Kovats RI; Authors: Galt, A.M.; MacLeod, G., Headspace sampling of cooked beef aroma using Tenax GC, J. Agric. Food Chem., 32(1), 1984, 59-64.) NIST Spectra nist ri
      1178 (Program type: Isothermal; Col… (show more) umn class: Standard polar; Column length: 6 m; Column type: Packed; Start T: 110 C; CAS no: 20333395; Active phase: Carbowax 20M; Carrier gas: He; Substrate: Chromosorb W AW (80-100 mesh); Data type: Kovats RI; Authors: Mockel, H.J.; Zolg, M., Retentionsindices n-aliphatischer Schwefelverbindungen, Z. Anal. Chem., 285, 1977, 45-46.) NIST Spectra nist ri
    • Retention Index (Normal Alkane):

      821 (Program type: Ramp; Column cl… (show more) ass: Standard non-polar; Column diameter: 0.25 mm; Column length: 60 m; Column type: Capillary; Heat rate: 2 K/min; Start T: 40 C; End T: 260 C; End time: 60 min; Start time: 5 min; CAS no: 20333395; Active phase: DB-1; Carrier gas: He; Phase thickness: 1 um; Data type: Normal alkane RI; Authors: Yu, T.-H.; Wu, C.-M.; Rosen, R.T.; Hartman, T.G.; Ho, C.-T., Volatile compounds in generated from thermal degradation of alliin and deoxyalliin in an aqueous solution, J. Agric. Food Chem., 42, 1994, 146-153.) NIST Spectra nist ri
      838 (Program type: Ramp; Column cl… (show more) ass: Semi-standard non-polar; Column diameter: 0.25 mm; Column length: 30 m; Column type: Capillary; Heat rate: 4 K/min; Start T: 40 C; End T: 240 C; End time: 10 min; Start time: 3 min; CAS no: 20333395; Active phase: HP-5; Carrier gas: N2; Phase thickness: 0.25 um; Data type: Normal alkane RI; Authors: Kubec, R.; Drhova, V.; Velisek, J., Thermal degradation of S-methylcysteine and its sulfoxide-important flavor precursors of Bassica and Allium vegetables, J. Agric. Food Chem., 46, 1998, 4334-4340., Program type: Ramp; Column cl… (show more) ass: Semi-standard non-polar; Column diameter: 0.32 mm; Column length: 60 m; Column type: Capillary; CAS no: 20333395; Active phase: SPB-5; Phase thickness: 1 um; Data type: Normal alkane RI; Authors: Begnaud, F.; Peres, C.; Berdague, J.-L., Characterization of volatile effluents of livestock buildings by solid-phase microextraction, Int. J. Environ. Anal. Chem., 83(10), 2003, 837-849.) NIST Spectra nist ri
      845 (Program type: Ramp; Column cl… (show more) ass: Semi-standard non-polar; Column diameter: 0.2 mm; Column length: 30 m; Column type: Capillary; Heat rate: 2 K/min; Start T: 30 C; End T: 200 C; CAS no: 20333395; Active phase: DB-5; Carrier gas: He; Data type: Normal alkane RI; Authors: Sinha, N.K.; Guyer, D.E.; Gage, D.A.; Lira, C.T., Supercritical carbon dioxide extraction of onion flavors and their analysis by gas chromatography-mass spectrometry, J. Agric. Food Chem., 40, 1992, 842-845.) NIST Spectra nist ri
      872 (Program type: Ramp; Column cl… (show more) ass: Semi-standard non-polar; Column diameter: 0.50 mm; Column length: 100 m; Column type: Capillary; CAS no: 20333395; Active phase: SE-52; Data type: Normal alkane RI; Authors: van Langenhove, H.; Schamp, N., Identification of Volatiles in the Head Space of Acid-Treated Phosphate Rock by Gas Chromatography-Mass Spectromety, J. Chromatogr., 351, 1986, 65-75.) NIST Spectra nist ri
      854 (Program type: Complex; Column… (show more) class: Semi-standard non-polar; Column length: 5.6 m; Column type: Packed; Description: 60C(7min), 100C(7min), 150C isothermal; CAS no: 20333395; Active phase: Apiezon M; Carrier gas: N2; Substrate: Chromosorb W AW/DMCS; Data type: Normal alkane RI; Authors: 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, 27(3), 1983, 237-249.) NIST Spectra nist ri
      1141 (Program type: Complex; Column… (show more) class: Standard polar; Column diameter: 0.25 mm; Column length: 60 m; Column type: Capillary; Description: 60 0C (3 min) ^ 2 0C/min -> 150 0C ^ 4 0C/min -> 200 0C; CAS no: 20333395; Active phase: DB-Wax; Carrier gas: Helium; Phase thickness: 0.25 um; Data type: Normal alkane RI; Authors: Kim. J.H.; Ahn, H.J.; Yook, H.S.; Kim, K.S.; Rhee, M.S.; Ryu, G.H.; Byun, M.W., Color, flavor, and sensory characteristics of gamma-irradiated salted and fermented anchovy sauce, Radiation Phys. Chem., 69, 2004, 179-187.) NIST Spectra nist ri
      1155 (Program type: Ramp; Column cl… (show more) ass: Standard polar; Column diameter: 0.25 mm; Column length: 60 m; Column type: Capillary; Heat rate: 4 K/min; Start T: 35 C; End T: 200 C; Start time: 10 min; CAS no: 20333395; Active phase: Supelcowax-10; Carrier gas: He; Phase thickness: 0.25 um; Data type: Normal alkane RI; Authors: Girard, B.; Durance, T., Headspace volatiles of sockeye and pink salmon as affected by retort process, Food Chem. Toxicol., 65(1), 2000, 34-39.) NIST Spectra nist ri
      1151 (Program type: Ramp; Column cl… (show more) ass: Standard polar; Column diameter: 0.25 mm; Column length: 30 m; Column type: Capillary; Heat rate: 4 K/min; Start T: 40 C; End T: 190 C; End time: 10 min; Start time: 3 min; CAS no: 20333395; Active phase: HP-Innowax; Carrier gas: N2; Phase thickness: 0.25 um; Data type: Normal alkane RI; Authors: Kubec, R.; Drhova, V.; Velisek, J., Thermal degradation of S-methylcysteine and its sulfoxide-important flavor precursors of Bassica and Allium vegetables, J. Agric. Food Chem., 46, 1998, 4334-4340.) NIST Spectra nist ri
      1152.1 (Program type: Ramp; Column cl… (show more) ass: Standard polar; Column diameter: 0.03 in; Column length: 200 ft; Column type: Capillary; Heat rate: 2 K/min; Start T: 75 C; End T: 225 C; End time: 5 min; CAS no: 20333395; Active phase: Carbowax 20M; Carrier gas: He; Data type: Normal alkane RI; Authors: Mussinan, C.J.; Katz, I., Isolation and identification of some sulfur chemicals present in two model systems approximating cooked meat, J. Agric. Food Chem., 21(1), 1973, 43-45.) NIST Spectra nist ri
      1159.2 (Program type: Ramp; Column cl… (show more) ass: Standard polar; Column diameter: 0.03 in; Column length: 200 ft; Column type: Capillary; Heat rate: 2 K/min; Start T: 75 C; End T: 225 C; End time: 5 min; CAS no: 20333395; Active phase: Carbowax 20M; Carrier gas: He; Data type: Normal alkane RI; Authors: Mussinan, C.J.; Katz, I., Isolation and identification of some sulfur chemicals present in two model systems approximating cooked meat, J. Agric. Food Chem., 21(1), 1973, 43-45.) NIST Spectra nist ri
    • Retention Index (Linear):

      815 (Program type: Ramp; Column cl… (show more) ass: Standard non-polar; Column diameter: 0.32 mm; Column length: 50 m; Column type: Capillary; Heat rate: 4 K/min; Start T: 50 C; End T: 250 C; CAS no: 20333395; Active phase: OV-101; Carrier gas: He; Data type: Linear RI; Authors: Misharina, T.A.; Golovnya, R.V., Regularities of retention of a pseudohomologous series of dialkylpolysulfides in capillary gas chromatography, Zh. Anal. Khim., 44, 1989, 514-519., Program type: Ramp; Column cl… (show more) ass: Standard non-polar; Column diameter: 0.32 mm; Column length: 60 m; Column type: Capillary; Heat rate: 2 K/min; Start T: 40 C; End T: 220 C; Start time: 5 min; CAS no: 20333395; Active phase: DB-1; Carrier gas: He; Phase thickness: 1 um; Data type: Linear RI; Authors: Kim, J.S., Einfluss der Temperatur beim Rosten von Sesam auf Aroma und antioxidative Eigenschaften des Ols, PhD Thesis, Technischen Universitat Berlin zur Erlangung des akademischen Grades, Berlin, 2001, 151.) NIST Spectra nist ri
      821 (Program type: Ramp; Column cl… (show more) ass: Standard non-polar; Column diameter: 0.32 mm; Column length: 30 m; Column type: Capillary; Heat rate: 4 K/min; Start T: 60 C; End T: 250 C; Start time: 4 min; CAS no: 20333395; Active phase: DB-1; Carrier gas: He; Data type: Linear RI; Authors: Pino, J.A.; Fuentes, V.; Correa, M.T., Volatile constituents of Chinese chive (Allium tuberosum Rottl. ex Sprengel) and Rakkyo (Allium chinense G. Don), J. Agric. Food Chem., 49, 2001, 1328-1330.) NIST Spectra nist ri
      861 (Program type: Ramp; Column cl… (show more) ass: Semi-standard non-polar; Column diameter: 0.2 mm; Column length: 25 m; Column type: Capillary; Heat rate: 5 K/min; Start T: 40 C; End T: 280 C; End time: 5 min; CAS no: 20333395; Active phase: HP-5; Carrier gas: He; Phase thickness: 1 um; Data type: Linear RI; Authors: Solina, M.; Baumgartner, P.; Johnson, R.L.; Whitfield, F.B., Volatile aroma components of soy protein isolate and acid-hydrolysed vegetable protein, Food Chem., 90, 2005, 861-873.) NIST Spectra nist ri
      839 (Program type: Complex; Column… (show more) class: Semi-standard non-polar; Column diameter: 0.25 mm; Column length: 60 m; Column type: Capillary; Description: 0C(5min) => 40C/min =>40C (2min) => 4C/min =>280C; CAS no: 20333395; Active phase: CP-Sil 8CB-MS; Carrier gas: He; Phase thickness: 0.25 um; Data type: Linear RI; Authors: Elmore, J.S.; Mottram, D.S.; Enser, M.; Wood, J.D., The effects of diet and breed on the volatile compounds of cooked lamb, Meat Sci., 55, 2000, 149-159.) NIST Spectra nist ri
      846 (Program type: Complex; Column… (show more) class: Semi-standard non-polar; Column diameter: 0.32 mm; Column length: 50 m; Column type: Capillary; Description: 0C(5min) => 40C/min =>40C(2min) => 4C/min => 280C; CAS no: 20333395; Active phase: BPX-5; Carrier gas: He; Phase thickness: 0.5 um; Data type: Linear RI; Authors: Elmore, J.S.; Mottram, D.S.; Enser, M.; Wood, J.D., Effect of the polyunsaturated fatty acid composition of beef muscle on the profile of aroma volatiles, J. Agric. Food Chem., 47, 1999, 1619-1625.) NIST Spectra nist ri
      1148 (Program type: Ramp; Column cl… (show more) ass: Standard polar; Column diameter: 0.32 mm; Column length: 30 m; Column type: Capillary; Heat rate: 6 K/min; Start T: 40 C; End T: 200 C; End time: 30 min; Start time: 5 min; CAS no: 20333395; Active phase: DB-Wax; Phase thickness: 0.25 um; Data type: Linear RI; Authors: Cha, Y.J.; Cadwallader, K.R., Aroma-active compounds in skipjack tuna sauce, J. Agric. Food Chem., 46(3), 1998, 1123-1128.) NIST Spectra nist ri
      1178.3 (Program type: Complex; Column… (show more) class: Standard polar; Column diameter: 0.32 mm; Column length: 50 m; Column type: Capillary; Description: 50C=>2.5C/min => 150C =>1.5C/min=>210C; CAS no: 20333395; Active phase: DB-Wax; Carrier gas: He; Data type: Linear RI; Authors: Yang, M.-S.; Chyau, C.-C.; Horng, D.-T.; Yang, J.-S., Effects of Irradiation and Drying on Volatile Components of Fresh Shiitake edodes (Lentinus Sing), J. Sci. Food Agric., 76, 1998, 72-76.) NIST Spectra nist ri

Predicted data is generated using the ACD/Labs Percepta Platform – PhysChem Module

Density: 1.0±0.1 g/cm3
Boiling Point: 121.0±9.0 °C at 760 mmHg
Vapour Pressure: 17.9±0.2 mmHg at 25°C
Enthalpy of Vaporization: 34.4±3.0 kJ/mol
Flash Point: 32.5±7.7 °C
Index of Refraction: 1.515
Molar Refractivity: 31.9±0.3 cm3
#H bond acceptors: 0
#H bond donors: 0
#Freely Rotating Bonds: 2
#Rule of 5 Violations: 0
ACD/LogP: 2.30
ACD/LogD (pH 5.5): 2.28
ACD/BCF (pH 5.5): 31.77
ACD/KOC (pH 5.5): 413.82
ACD/LogD (pH 7.4): 2.28
ACD/BCF (pH 7.4): 31.77
ACD/KOC (pH 7.4): 413.82
Polar Surface Area: 51 Å2
Polarizability: 12.7±0.5 10-24cm3
Surface Tension: 32.4±3.0 dyne/cm
Molar Volume: 106.0±3.0 cm3

Predicted data is generated using the US Environmental Protection Agency’s EPISuite™

 
 Log Octanol-Water Partition Coef (SRC):
 Log Kow (KOWWIN v1.67 estimate) = 2.36

 Boiling Pt, Melting Pt, Vapor Pressure Estimations (MPBPWIN v1.42):
 Boiling Pt (deg C): 136.67 (Adapted Stein & Brown method)
 Melting Pt (deg C): -57.32 (Mean or Weighted MP)
 VP(mm Hg,25 deg C): 7.4 (Mean VP of Antoine & Grain methods)

 Water Solubility Estimate from Log Kow (WSKOW v1.41):
 Water Solubility at 25 deg C (mg/L): 1055
 log Kow used: 2.36 (estimated)
 no-melting pt equation used

 Water Sol Estimate from Fragments:
 Wat Sol (v1.01 est) = 956.73 mg/L

 ECOSAR Class Program (ECOSAR v0.99h):
 Class(es) found:
 Neutral Organics

 Henrys Law Constant (25 deg C) [HENRYWIN v3.10]:
 Bond Method : 1.61E-003 atm-m3/mole
 Group Method: Incomplete
 Henrys LC [VP/WSol estimate using EPI values]: 9.988E-004 atm-m3/mole

 Log Octanol-Air Partition Coefficient (25 deg C) [KOAWIN v1.10]:
 Log Kow used: 2.36 (KowWin est)
 Log Kaw used: -1.182 (HenryWin est)
 Log Koa (KOAWIN v1.10 estimate): 3.542
 Log Koa (experimental database): None

 Probability of Rapid Biodegradation (BIOWIN v4.10):
 Biowin1 (Linear Model) : 0.6960
 Biowin2 (Non-Linear Model) : 0.8134
 Expert Survey Biodegradation Results:
 Biowin3 (Ultimate Survey Model): 2.9600 (weeks )
 Biowin4 (Primary Survey Model) : 3.6916 (days-weeks )
 MITI Biodegradation Probability:
 Biowin5 (MITI Linear Model) : 0.4404
 Biowin6 (MITI Non-Linear Model): 0.4675
 Anaerobic Biodegradation Probability:
 Biowin7 (Anaerobic Linear Model): 0.7029
 Ready Biodegradability Prediction: NO

 Hydrocarbon Biodegradation (BioHCwin v1.01):
 LOG BioHC Half-Life (days) : 0.4952
 BioHC Half-Life (days) : 3.1275

 Sorption to aerosols (25 Dec C)[AEROWIN v1.00]:
 Vapor pressure (liquid/subcooled): 909 Pa (6.82 mm Hg)
 Log Koa (Koawin est ): 3.542
 Kp (particle/gas partition coef. (m3/ug)):
 Mackay model : 3.3E-009 
 Octanol/air (Koa) model: 8.55E-010 
 Fraction sorbed to airborne particulates (phi):
 Junge-Pankow model : 1.19E-007 
 Mackay model : 2.64E-007 
 Octanol/air (Koa) model: 6.84E-008 

 Atmospheric Oxidation (25 deg C) [AopWin v1.92]:
 Hydroxyl Radicals Reaction:
 OVERALL OH Rate Constant = 233.5133 E-12 cm3/molecule-sec
 Half-Life = 0.046 Days (12-hr day; 1.5E6 OH/cm3)
 Half-Life = 0.550 Hrs
 Ozone Reaction:
 No Ozone Reaction Estimation
 Fraction sorbed to airborne particulates (phi): 1.92E-007 (Junge,Mackay)
 Note: the sorbed fraction may be resistant to atmospheric oxidation

 Soil Adsorption Coefficient (PCKOCWIN v1.66):
 Koc : 80.77
 Log Koc: 1.907 

 Aqueous Base/Acid-Catalyzed Hydrolysis (25 deg C) [HYDROWIN v1.67]:
 Rate constants can NOT be estimated for this structure!

 Bioaccumulation Estimates from Log Kow (BCFWIN v2.17):
 Log BCF from regression-based method = 1.121 (BCF = 13.2)
 log Kow used: 2.36 (estimated)

 Volatilization from Water:
 Henry LC: 0.00161 atm-m3/mole (estimated by Bond SAR Method)
 Half-Life from Model River: 1.44 hours
 Half-Life from Model Lake : 102.9 hours (4.289 days)

 Removal In Wastewater Treatment:
 Total removal: 40.98 percent
 Total biodegradation: 0.07 percent
 Total sludge adsorption: 1.91 percent
 Total to Air: 39.00 percent
 (using 10000 hr Bio P,A,S)

 Level III Fugacity Model:
 Mass Amount Half-Life Emissions
 (percent) (hr) (kg/hr)
 Air 0.696 1.1 1000 
 Water 41.9 360 1000 
 Soil 57.2 720 1000 
 Sediment 0.235 3.24e+003 0 
 Persistence Time: 160 hr




 

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