This page contains the EPI System Summary only.
For complete control of this information -
Download the free EPI SuiteTM v4.0 program : here
To Datasheet
CAS Number: 90195-83-8
SMILES : CSSSSCC=C
CHEM : 3-methyldisulfanyldisulfanylprop-1-ene
MOL FOR: C4 H8 S4
MOL WT : 184.35
------------------------------ EPI SUMMARY (v4.00) --------------------------
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 v1.67 estimate) = 2.72
Boiling Pt, Melting Pt, Vapor Pressure Estimations (MPBPVP v1.43):
Boiling Pt (deg C): 267.13 (Adapted Stein & Brown method)
Melting Pt (deg C): 19.92 (Mean or Weighted MP)
VP(mm Hg,25 deg C): 0.0108 (Mean VP of Antoine & Grain methods)
VP (Pa, 25 deg C) : 1.44 (Mean VP of Antoine & Grain methods)
Water Solubility Estimate from Log Kow (WSKOW v1.41):
Water Solubility at 25 deg C (mg/L): 249.7
log Kow used: 2.72 (estimated)
no-melting pt equation used
Water Sol Estimate from Fragments:
Wat Sol (v1.01 est) = 310.03 mg/L
ECOSAR Class Program (ECOSAR v1.00):
Class(es) found:
Neutral Organics
Henrys Law Constant (25 deg C) [HENRYWIN v3.20]:
Bond Method : 3.80E-003 atm-m3/mole (3.85E+002 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: 1.049E-005 atm-m3/mole (1.063E+000 Pa-m3/mole)
VP: 0.0108 mm Hg (source: MPBPVP)
WS: 250 mg/L (source: WSKOWWIN)
Log Octanol-Air Partition Coefficient (25 deg C) [KOAWIN v1.10]:
Log Kow used: 2.72 (KowWin est)
Log Kaw used: -0.809 (HenryWin est)
Log Koa (KOAWIN v1.10 estimate): 3.529
Log Koa (experimental database): None
Probability of Rapid Biodegradation (BIOWIN v4.10):
Biowin1 (Linear Model) : 0.6598
Biowin2 (Non-Linear Model) : 0.5965
Expert Survey Biodegradation Results:
Biowin3 (Ultimate Survey Model): 2.7918 (weeks )
Biowin4 (Primary Survey Model) : 3.5818 (days-weeks )
MITI Biodegradation Probability:
Biowin5 (MITI Linear Model) : 0.2321
Biowin6 (MITI Non-Linear Model): 0.0943
Anaerobic Biodegradation Probability:
Biowin7 (Anaerobic Linear Model): 0.5619
Ready Biodegradability Prediction: NO
Hydrocarbon Biodegradation (BioHCwin v1.01):
LOG BioHC Half-Life (days) : 0.7050
BioHC Half-Life (days) : 5.0695
Sorption to aerosols (25 Dec C)[AEROWIN v1.00]:
Vapor pressure (liquid/subcooled): 1.47 Pa (0.011 mm Hg)
Log Koa (Koawin est ): 3.529
Kp (particle/gas partition coef. (m3/ug)):
Mackay model : 2.05E-006
Octanol/air (Koa) model: 8.3E-010
Fraction sorbed to airborne particulates (phi):
Junge-Pankow model : 7.39E-005
Mackay model : 0.000164
Octanol/air (Koa) model: 6.64E-008
Atmospheric Oxidation (25 deg C) [AopWin v1.92]:
Hydroxyl Radicals Reaction:
OVERALL OH Rate Constant = 484.6460 E-12 cm3/molecule-sec
Half-Life = 0.022 Days (12-hr day; 1.5E6 OH/cm3)
Half-Life = 15.890 Min
Ozone Reaction:
OVERALL Ozone Rate Constant = 1.200000 E-17 cm3/molecule-sec
Half-Life = 0.955 Days (at 7E11 mol/cm3)
Half-Life = 22.920 Hrs
Fraction sorbed to airborne particulates (phi):
0.000119 (Junge-Pankow, Mackay avg)
6.64E-008 (Koa method)
Note: the sorbed fraction may be resistant to atmospheric oxidation
Soil Adsorption Coefficient (KOCWIN v2.00):
Koc : 436.8 L/kg (MCI method)
Log Koc: 2.640 (MCI method)
Koc : 229.2 L/kg (Kow method)
Log Koc: 2.360 (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 = 0.121 (BCF = 1.32 L/kg wet-wt)
Log Biotransformation Half-life (HL) = -0.6083 days (HL = 0.2465 days)
Log BCF Arnot-Gobas method (upper trophic) = 1.546 (BCF = 35.17)
Log BAF Arnot-Gobas method (upper trophic) = 1.546 (BAF = 35.17)
log Kow used: 2.72 (estimated)
Volatilization from Water:
Henry LC: 0.0038 atm-m3/mole (estimated by Bond SAR Method)
Half-Life from Model River: 1.595 hours
Half-Life from Model Lake : 131.2 hours (5.469 days)
Removal In Wastewater Treatment:
Total removal: 61.01 percent
Total biodegradation: 0.06 percent
Total sludge adsorption: 2.40 percent
Total to Air: 58.56 percent
(using 10000 hr Bio P,A,S)
Level III Fugacity Model:
Mass Amount Half-Life Emissions
(percent) (hr) (kg/hr)
Air 0.249 0.518 1000
Water 31.4 360 1000
Soil 67.8 720 1000
Sediment 0.553 3.24e+003 0
Persistence Time: 203 hr