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CAS Number: 86849-52-7
SMILES : CCCCCSS
CHEM :
MOL FOR: C5 H12 S2
MOL WT : 136.27
------------------------------ EPI SUMMARY (v4.10) --------------------------
Physical Property Inputs:
Log Kow (octanol-water): ------
Boiling Point (deg C) : ------
Melting Point (deg C) : ------
Vapor Pressure (mm Hg) : ------
Water Solubility (mg/L): ------
Henry LC (atm-m3/mole) : ------
Log Octanol-Water Partition Coef (SRC):
Log Kow (KOWWIN v1.68 estimate) = 3.29
Boiling Pt, Melting Pt, Vapor Pressure Estimations (MPBPVP v1.43):
Boiling Pt (deg C): 192.39 (Adapted Stein & Brown method)
Melting Pt (deg C): -28.76 (Mean or Weighted MP)
VP(mm Hg,25 deg C): 0.526 (Mean VP of Antoine & Grain methods)
VP (Pa, 25 deg C) : 70.2 (Mean VP of Antoine & Grain methods)
Water Solubility Estimate from Log Kow (WSKOW v1.42):
Water Solubility at 25 deg C (mg/L): 134.4
log Kow used: 3.29 (estimated)
no-melting pt equation used
Water Sol Estimate from Fragments:
Wat Sol (v1.01 est) = 61.818 mg/L
ECOSAR Class Program (ECOSAR v1.00):
Class(es) found:
Neutral Organics
Henrys Law Constant (25 deg C) [HENRYWIN v3.20]:
Bond Method : 1.25E-002 atm-m3/mole (1.27E+003 Pa-m3/mole)
Group Method: Incomplete
For Henry LC Comparison Purposes:
User-Entered Henry LC: not entered
Henrys LC [via VP/WSol estimate using User-Entered or Estimated values]:
HLC: 7.017E-004 atm-m3/mole (7.110E+001 Pa-m3/mole)
VP: 0.526 mm Hg (source: MPBPVP)
WS: 134 mg/L (source: WSKOWWIN)
Log Octanol-Air Partition Coefficient (25 deg C) [KOAWIN v1.10]:
Log Kow used: 3.29 (KowWin est)
Log Kaw used: -0.292 (HenryWin est)
Log Koa (KOAWIN v1.10 estimate): 3.582
Log Koa (experimental database): None
Probability of Rapid Biodegradation (BIOWIN v4.10):
Biowin1 (Linear Model) : 0.7911
Biowin2 (Non-Linear Model) : 0.9487
Expert Survey Biodegradation Results:
Biowin3 (Ultimate Survey Model): 3.1964 (weeks )
Biowin4 (Primary Survey Model) : 3.9202 (days )
MITI Biodegradation Probability:
Biowin5 (MITI Linear Model) : 0.5048
Biowin6 (MITI Non-Linear Model): 0.5815
Anaerobic Biodegradation Probability:
Biowin7 (Anaerobic Linear Model): 0.5427
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): 64 Pa (0.48 mm Hg)
Log Koa (Koawin est ): 3.582
Kp (particle/gas partition coef. (m3/ug)):
Mackay model : 4.69E-008
Octanol/air (Koa) model: 9.38E-010
Fraction sorbed to airborne particulates (phi):
Junge-Pankow model : 1.69E-006
Mackay model : 3.75E-006
Octanol/air (Koa) model: 7.5E-008
Atmospheric Oxidation (25 deg C) [AopWin v1.92]:
Hydroxyl Radicals Reaction:
OVERALL OH Rate Constant = 238.1030 E-12 cm3/molecule-sec
Half-Life = 0.045 Days (12-hr day; 1.5E6 OH/cm3)
Half-Life = 0.539 Hrs
Ozone Reaction:
No Ozone Reaction Estimation
Fraction sorbed to airborne particulates (phi):
2.72E-006 (Junge-Pankow, Mackay avg)
7.5E-008 (Koa method)
Note: the sorbed fraction may be resistant to atmospheric oxidation
Soil Adsorption Coefficient (KOCWIN v2.00):
Koc : 239.7 L/kg (MCI method)
Log Koc: 2.380 (MCI method)
Koc : 716.1 L/kg (Kow method)
Log Koc: 2.855 (Kow method)
Aqueous Base/Acid-Catalyzed Hydrolysis (25 deg C) [HYDROWIN v2.00]:
Rate constants can NOT be estimated for this structure!
Bioaccumulation Estimates (BCFBAF v3.01):
Log BCF from regression-based method = 1.838 (BCF = 68.87 L/kg wet-wt)
Log Biotransformation Half-life (HL) = -0.4993 days (HL = 0.3168 days)
Log BCF Arnot-Gobas method (upper trophic) = 1.905 (BCF = 80.39)
Log BAF Arnot-Gobas method (upper trophic) = 1.905 (BAF = 80.39)
log Kow used: 3.29 (estimated)
Volatilization from Water:
Henry LC: 0.0125 atm-m3/mole (estimated by Bond SAR Method)
Half-Life from Model River: 1.246 hours
Half-Life from Model Lake : 111.5 hours (4.645 days)
Removal In Wastewater Treatment:
Total removal: 83.65 percent
Total biodegradation: 0.05 percent
Total sludge adsorption: 5.30 percent
Total to Air: 78.31 percent
(using 10000 hr Bio P,A,S)
Level III Fugacity Model:
Mass Amount Half-Life Emissions
(percent) (hr) (kg/hr)
Air 1.2 1.08 1000
Water 62.2 360 1000
Soil 35.9 720 1000
Sediment 0.681 3.24e+003 0
Persistence Time: 100 hr