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CAS Number: 58384-57-9
SMILES : CC1(CCSS1)C
CHEM : 3,3-dimethyldithiolane
MOL FOR: C5 H10 S2
MOL WT : 134.26
------------------------------ 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) = 3.12
Boiling Pt, Melting Pt, Vapor Pressure Estimations (MPBPVP v1.43):
Boiling Pt (deg C): 171.85 (Adapted Stein & Brown method)
Melting Pt (deg C): 24.67 (Mean or Weighted MP)
VP(mm Hg,25 deg C): 1.43 (Mean VP of Antoine & Grain methods)
VP (Pa, 25 deg C) : 191 (Mean VP of Antoine & Grain methods)
Water Solubility Estimate from Log Kow (WSKOW v1.41):
Water Solubility at 25 deg C (mg/L): 190.3
log Kow used: 3.12 (estimated)
no-melting pt equation used
Water Sol Estimate from Fragments:
Wat Sol (v1.01 est) = 235.73 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-003 atm-m3/mole (1.27E+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: 1.327E-003 atm-m3/mole (1.345E+002 Pa-m3/mole)
VP: 1.43 mm Hg (source: MPBPVP)
WS: 190 mg/L (source: WSKOWWIN)
Log Octanol-Air Partition Coefficient (25 deg C) [KOAWIN v1.10]:
Log Kow used: 3.12 (KowWin est)
Log Kaw used: -1.292 (HenryWin est)
Log Koa (KOAWIN v1.10 estimate): 4.412
Log Koa (experimental database): None
Probability of Rapid Biodegradation (BIOWIN v4.10):
Biowin1 (Linear Model) : 0.4997
Biowin2 (Non-Linear Model) : 0.3496
Expert Survey Biodegradation Results:
Biowin3 (Ultimate Survey Model): 2.6904 (weeks-months)
Biowin4 (Primary Survey Model) : 3.5006 (days-weeks )
MITI Biodegradation Probability:
Biowin5 (MITI Linear Model) : 0.4206
Biowin6 (MITI Non-Linear Model): 0.3919
Anaerobic Biodegradation Probability:
Biowin7 (Anaerobic Linear Model): 0.1027
Ready Biodegradability Prediction: NO
Hydrocarbon Biodegradation (BioHCwin v1.01):
LOG BioHC Half-Life (days) : 1.6681
BioHC Half-Life (days) : 46.5640
Sorption to aerosols (25 Dec C)[AEROWIN v1.00]:
Vapor pressure (liquid/subcooled): 173 Pa (1.3 mm Hg)
Log Koa (Koawin est ): 4.412
Kp (particle/gas partition coef. (m3/ug)):
Mackay model : 1.73E-008
Octanol/air (Koa) model: 6.34E-009
Fraction sorbed to airborne particulates (phi):
Junge-Pankow model : 6.25E-007
Mackay model : 1.38E-006
Octanol/air (Koa) model: 5.07E-007
Atmospheric Oxidation (25 deg C) [AopWin v1.92]:
Hydroxyl Radicals Reaction:
OVERALL OH Rate Constant = 231.9738 E-12 cm3/molecule-sec
Half-Life = 0.046 Days (12-hr day; 1.5E6 OH/cm3)
Half-Life = 0.553 Hrs
Ozone Reaction:
No Ozone Reaction Estimation
Fraction sorbed to airborne particulates (phi):
1E-006 (Junge-Pankow, Mackay avg)
5.07E-007 (Koa method)
Note: the sorbed fraction may be resistant to atmospheric oxidation
Soil Adsorption Coefficient (KOCWIN v2.00):
Koc : 186.9 L/kg (MCI method)
Log Koc: 2.272 (MCI method)
Koc : 509.9 L/kg (Kow method)
Log Koc: 2.707 (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 = 1.728 (BCF = 53.41 L/kg wet-wt)
Log Biotransformation Half-life (HL) = -0.5372 days (HL = 0.2903 days)
Log BCF Arnot-Gobas method (upper trophic) = 1.809 (BCF = 64.46)
Log BAF Arnot-Gobas method (upper trophic) = 1.809 (BAF = 64.46)
log Kow used: 3.12 (estimated)
Volatilization from Water:
Henry LC: 0.00125 atm-m3/mole (estimated by Bond SAR Method)
Half-Life from Model River: 1.725 hours
Half-Life from Model Lake : 116 hours (4.832 days)
Removal In Wastewater Treatment:
Total removal: 37.78 percent
Total biodegradation: 0.10 percent
Total sludge adsorption: 5.53 percent
Total to Air: 32.15 percent
(using 10000 hr Bio P,A,S)
Level III Fugacity Model:
Mass Amount Half-Life Emissions
(percent) (hr) (kg/hr)
Air 0.381 1.11 1000
Water 28.6 900 1000
Soil 70.7 1.8e+003 1000
Sediment 0.317 8.1e+003 0
Persistence Time: 312 hr