carbonyl sulfide COS structure

COS structure
Molecular Formula COS
Average mass 60.075 Da
Density 1.1±0.1 g/cm3
Boiling Point -50.0±9.0 °C at 760 mmHg
Flash Point -76.4±18.7 °C
Molar Refractivity 14.2±0.3 cm3
Polarizability 5.6±0.5 10-24cm3
Surface Tension 14.4±3.0 dyne/cm
Molar Volume 52.6±3.0 cm3
  • Experimental Physico-chemical Properties
  • Gas Chromatography
    • Retention Index (Kovats):

      301 (Program type: Isothermal; Col… (show more) umn class: Semi-standard non-polar; Column diameter: 0.25 mm; Column length: 50 ft; Column type: Packed; Start T: 27 C; CAS no: 463581; Active phase: Squalane; Carrier gas: He; Substrate: Chromosorb P; Data type: Kovats RI; Authors: Hively, R.A.; Hinton, R.E., Variation of the retention index with temperature on squalane substrates, J. Gas Chromatogr., 6, 1968, 203-217.) NIST Spectra nist ri
      303 (Program type: Isothermal; Col… (show more) umn class: Semi-standard non-polar; Column diameter: 0.25 mm; Column length: 50 ft; Column type: Packed; Start T: 49 C; CAS no: 463581; Active phase: Squalane; Carrier gas: He; Substrate: Chromosorb P; Data type: Kovats RI; Authors: Hively, R.A.; Hinton, R.E., Variation of the retention index with temperature on squalane substrates, J. Gas Chromatogr., 6, 1968, 203-217.) NIST Spectra nist ri
      304 (Program type: Isothermal; Col… (show more) umn class: Semi-standard non-polar; Column diameter: 0.25 mm; Column length: 50 ft; Column type: Packed; Start T: 67 C; CAS no: 463581; Active phase: Squalane; Carrier gas: He; Substrate: Chromosorb P; Data type: Kovats RI; Authors: Hively, R.A.; Hinton, R.E., Variation of the retention index with temperature on squalane substrates, J. Gas Chromatogr., 6, 1968, 203-217.) NIST Spectra nist ri
      305 (Program type: Isothermal; Col… (show more) umn class: Semi-standard non-polar; Column diameter: 0.25 mm; Column length: 50 ft; Column type: Packed; Start T: 86 C; CAS no: 463581; Active phase: Squalane; Carrier gas: He; Substrate: Chromosorb P; Data type: Kovats RI; Authors: Hively, R.A.; Hinton, R.E., Variation of the retention index with temperature on squalane substrates, J. Gas Chromatogr., 6, 1968, 203-217.) NIST Spectra nist ri
    • Retention Index (Normal Alkane):

      277 (Program type: Ramp; Column cl… (show more) ass: Standard non-polar; Column diameter: 0.20 mm; Column length: 25 m; Column type: Capillary; Heat rate: 6 K/min; Start T: 50 C; End T: 250 C; CAS no: 463581; Active phase: OV-101; Carrier gas: N2/He; Phase thickness: 0.10 um; Data type: Normal alkane RI; Authors: Zenkevich, I.G., Experimentally measured retention indices., 2005.) NIST Spectra nist ri
    • Retention Index (Linear):

      680 (Program type: Complex; Column… (show more) class: Standard polar; Column diameter: 0.25 mm; Column length: 60 m; Column type: Capillary; Description: 45C(5min) =>10C/min =>80C =>2C/min =>240C; CAS no: 463581; Active phase: CP-Wax 52CB; Carrier gas: He; Phase thickness: 0.25 um; Data type: Linear RI; Authors: Condurso, C.; Verzera, A.; Romeo, V.; Ziino, M.; Trozzi, A.; Ragusa, S., The leaf volatile constituents of Isatis tinctoria by solid-phase microextraction and gas chromatography/mass spectrometry, Planta Medica, 72, 2006, 924-928.) NIST Spectra nist ri

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

Density: 1.1±0.1 g/cm3
Boiling Point: -50.0±9.0 °C at 760 mmHg
Vapour Pressure: 9092.4±0.1 mmHg at 25°C
Enthalpy of Vaporization: 19.9±3.0 kJ/mol
Flash Point: -76.4±18.7 °C
Index of Refraction: 1.454
Molar Refractivity: 14.2±0.3 cm3
#H bond acceptors: 1
#H bond donors: 0
#Freely Rotating Bonds: 0
#Rule of 5 Violations: 0
ACD/LogP: 0.84
ACD/LogD (pH 5.5): 0.52
ACD/BCF (pH 5.5): 1.46
ACD/KOC (pH 5.5): 45.60
ACD/LogD (pH 7.4): 0.52
ACD/BCF (pH 7.4): 1.46
ACD/KOC (pH 7.4): 45.60
Polar Surface Area: 49 Å2
Polarizability: 5.6±0.5 10-24cm3
Surface Tension: 14.4±3.0 dyne/cm
Molar Volume: 52.6±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) = -1.33
Boiling Pt, Melting Pt, Vapor Pressure Estimations (MPBPWIN v1.42):
Boiling Pt (deg C): -3.92 (Adapted Stein & Brown method)
Melting Pt (deg C): -102.71 (Mean or Weighted MP)
VP(mm Hg,25 deg C): 8.24E+003 (Mean VP of Antoine & Grain methods)
MP (exp database): -138.8 deg C
BP (exp database): -50 deg C
VP (exp database): 9.41E+03 mm Hg at 25 deg C
Water Solubility Estimate from Log Kow (WSKOW v1.41):
Water Solubility at 25 deg C (mg/L): 1e+006
log Kow used: -1.33 (estimated)
no-melting pt equation used
Water Sol (Exper. database match) = 1220 mg/L (25 deg C)
Exper. Ref: MACALUSO,P (1969)
Water Sol Estimate from Fragments:
Wat Sol (v1.01 est) = 1e+006 mg/L
Wat Sol (Exper. database match) = 1220.00
Exper. Ref: MACALUSO,P (1969)
ECOSAR Class Program (ECOSAR v0.99h):
Class(es) found:
Neutral Organics
Henrys Law Constant (25 deg C) [HENRYWIN v3.10]:
Bond Method : 4.92E-002 atm-m3/mole
Group Method: Incomplete
Exper Database: 4.81E-02 atm-m3/mole
Henrys LC [VP/WSol estimate using EPI values]: 6.007E-005 atm-m3/mole
Log Octanol-Air Partition Coefficient (25 deg C) [KOAWIN v1.10]:
Log Kow used: -1.33 (KowWin est)
Log Kaw used: 0.294 (exp database)
Log Koa (KOAWIN v1.10 estimate): -1.624
Log Koa (experimental database): None
Probability of Rapid Biodegradation (BIOWIN v4.10):
Biowin1 (Linear Model) : 0.7189
Biowin2 (Non-Linear Model) : 0.8962
Expert Survey Biodegradation Results:
Biowin3 (Ultimate Survey Model): 3.0664 (weeks )
Biowin4 (Primary Survey Model) : 3.7611 (days )
MITI Biodegradation Probability:
Biowin5 (MITI Linear Model) : 0.5334
Biowin6 (MITI Non-Linear Model): 0.6882
Anaerobic Biodegradation Probability:
Biowin7 (Anaerobic Linear Model): 0.8361
Ready Biodegradability Prediction: YES
Hydrocarbon Biodegradation (BioHCwin v1.01):
Structure incompatible with current estimation method!
Sorption to aerosols (25 Dec C)[AEROWIN v1.00]:
Vapor pressure (liquid/subcooled): 1.25E+006 Pa (9.41E+003 mm Hg)
Log Koa (Koawin est ): -1.624
Kp (particle/gas partition coef. (m3/ug)):
Mackay model : 2.39E-012 
Octanol/air (Koa) model: 5.83E-015 
Fraction sorbed to airborne particulates (phi):
Junge-Pankow model : 8.64E-011 
Mackay model : 1.91E-010 
Octanol/air (Koa) model: 4.67E-013 
Atmospheric Oxidation (25 deg C) [AopWin v1.92]:
Hydroxyl Radicals Reaction:
OVERALL OH Rate Constant = 0.0000 E-12 cm3/molecule-sec
Half-Life = -------
Ozone Reaction:
No Ozone Reaction Estimation
Fraction sorbed to airborne particulates (phi): 1.39E-010 (Junge,Mackay)
Note: the sorbed fraction may be resistant to atmospheric oxidation
Soil Adsorption Coefficient (PCKOCWIN v1.66):
Koc : 1.498
Log Koc: 0.176 
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 = 0.500 (BCF = 3.162)
log Kow used: -1.33 (estimated)
Volatilization from Water:
Henry LC: 0.0481 atm-m3/mole (Henry experimental database)
Half-Life from Model River: 0.8003 hours (48.02 min)
Half-Life from Model Lake : 73.72 hours (3.072 days)
Removal In Wastewater Treatment:
Total removal: 94.91 percent
Total biodegradation: 0.02 percent
Total sludge adsorption: 0.32 percent
Total to Air: 94.57 percent
(using 10000 hr Bio P,A,S)
Level III Fugacity Model:
Mass Amount Half-Life Emissions
(percent) (hr) (kg/hr)
Air 56.5 1e+005 1000 
Water 42.6 360 1000 
Soil 0.815 720 1000 
Sediment 0.078 3.24e+003 0 
Persistence Time: 145 hr

Click to predict properties on the Chemicalize site

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