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CAS Num: 002527-76-6
SMILES : s1c(C)c(S)cc1
CHEM :
MOL FOR: C5 H6 S2
MOL WT : 130.22
------------------------------ EPI SUMMARY (v4.00) --------------------------
Physical Property Inputs:
Water Solubility (mg/L): ------
Vapor Pressure (mm Hg) : ------
Henry LC (atm-m3/mole) : ------
Log Kow (octanol-water): ------
Boiling Point (deg C) : ------
Melting Point (deg C) : ------
Log Octanol-Water Partition Coef (SRC):
Log Kow (KOWWIN v1.67 estimate) = 3.05
Boiling Pt, Melting Pt, Vapor Pressure Estimations (MPBPWIN v1.43):
Boiling Pt (deg C): 206.43 (Adapted Stein & Brown method)
Melting Pt (deg C): 17.72 (Mean or Weighted MP)
VP(mm Hg,25 deg C): 0.261 (Mean VP of Antoine & Grain methods)
VP (Pa, 25 deg C) : 34.8 (Mean VP of Antoine & Grain methods)
Water Solubility Estimate from Log Kow (WSKOW v1.41):
Water Solubility at 25 deg C (mg/L): 226.7
log Kow used: 3.05 (estimated)
no-melting pt equation used
Water Sol Estimate from Fragments:
Wat Sol (v1.01 est) = 197.98 mg/L
ECOSAR Class Program (ECOSAR v1.00):
Class(es) found:
Phenols
Thiophenes
Henrys Law Constant (25 deg C) [HENRYWIN v3.20]:
Bond Method : 3.13E-004 atm-m3/mole (3.17E+001 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: 1.973E-004 atm-m3/mole (1.999E+001 Pa-m3/mole)
VP: 0.261 mm Hg (source: MPBPVP)
WS: 227 mg/L (source: WSKOWWIN)
Log Octanol-Air Partition Coefficient (25 deg C) [KOAWIN v1.10]:
Log Kow used: 3.05 (KowWin est)
Log Kaw used: -1.893 (HenryWin est)
Log Koa (KOAWIN v1.10 estimate): 4.943
Log Koa (experimental database): None
Probability of Rapid Biodegradation (BIOWIN v4.10):
Biowin1 (Linear Model) : 0.7402
Biowin2 (Non-Linear Model) : 0.8503
Expert Survey Biodegradation Results:
Biowin3 (Ultimate Survey Model): 2.8365 (weeks )
Biowin4 (Primary Survey Model) : 3.5913 (days-weeks )
MITI Biodegradation Probability:
Biowin5 (MITI Linear Model) : 0.3826
Biowin6 (MITI Non-Linear Model): 0.3349
Anaerobic Biodegradation Probability:
Biowin7 (Anaerobic Linear Model): 0.2735
Ready Biodegradability Prediction: NO
Hydrocarbon Biodegradation (BioHCwin v1.01):
Structure incompatible with current estimation method!
Sorption to aerosols (25 Dec C)[AEROWIN v1.00]:
Vapor pressure (liquid/subcooled): 32 Pa (0.24 mm Hg)
Log Koa (Koawin est ): 4.943
Kp (particle/gas partition coef. (m3/ug)):
Mackay model : 9.38E-008
Octanol/air (Koa) model: 2.15E-008
Fraction sorbed to airborne particulates (phi):
Junge-Pankow model : 3.39E-006
Mackay model : 7.5E-006
Octanol/air (Koa) model: 1.72E-006
Atmospheric Oxidation (25 deg C) [AopWin v1.92]:
Hydroxyl Radicals Reaction:
OVERALL OH Rate Constant = 67.9521 E-12 cm3/molecule-sec
Half-Life = 0.157 Days (12-hr day; 1.5E6 OH/cm3)
Half-Life = 1.889 Hrs
Ozone Reaction:
No Ozone Reaction Estimation
Fraction sorbed to airborne particulates (phi):
5.44E-006 (Junge-Pankow, Mackay avg)
1.72E-006 (Koa method)
Note: the sorbed fraction may be resistant to atmospheric oxidation
Soil Adsorption Coefficient (KOCWIN v2.00):
Koc : 210.1 L/kg (MCI method)
Log Koc: 2.322 (MCI method)
Koc : 443.3 L/kg (Kow method)
Log Koc: 2.647 (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 v3.00):
Log BCF from regression-based method = 1.681 (BCF = 48.01 L/kg wet-wt)
Log Biotransformation Half-life (HL) = -0.6661 days (HL = 0.2157 days)
Log BCF Arnot-Gobas method (upper trophic) = 1.705 (BCF = 50.65)
Log BAF Arnot-Gobas method (upper trophic) = 1.705 (BAF = 50.65)
log Kow used: 3.05 (estimated)
Volatilization from Water:
Henry LC: 0.000313 atm-m3/mole (estimated by Bond SAR Method)
Half-Life from Model River: 3.299 hours
Half-Life from Model Lake : 131.7 hours (5.486 days)
Removal In Wastewater Treatment:
Total removal: 17.76 percent
Total biodegradation: 0.12 percent
Total sludge adsorption: 5.59 percent
Total to Air: 12.05 percent
(using 10000 hr Bio P,A,S)
Level III Fugacity Model:
Mass Amount Half-Life Emissions
(percent) (hr) (kg/hr)
Air 0.757 3.78 1000
Water 22.9 360 1000
Soil 76.1 720 1000
Sediment 0.227 3.24e+003 0
Persistence Time: 349 hr