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CAS Num: 003658-80-8


CHEM : Trisulfide, dimethyl


MOL WT : 126.25

------------------------------ 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) = 1.87

Boiling Pt, Melting Pt, Vapor Pressure Estimations (MPBPWIN v1.43):

Boiling Pt (deg C): 177.28 (Adapted Stein & Brown method)

Melting Pt (deg C): -33.90 (Mean or Weighted MP)

VP(mm Hg,25 deg C): 1.1 (Mean VP of Antoine & Grain methods)

VP (Pa, 25 deg C) : 147 (Mean VP of Antoine & Grain methods)

Water Solubility Estimate from Log Kow (WSKOW v1.41):

Water Solubility at 25 deg C (mg/L): 2390

log Kow used: 1.87 (estimated)

no-melting pt equation used

Water Sol Estimate from Fragments:

Wat Sol (v1.01 est) = 3058.3 mg/L

ECOSAR Class Program (ECOSAR v1.00):

Class(es) found:

Neutral Organics

Henrys Law Constant (25 deg C) [HENRYWIN v3.20]:

Bond Method : 1.87E-003 atm-m3/mole (1.90E+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: 7.646E-005 atm-m3/mole (7.747E+000 Pa-m3/mole)

VP: 1.1 mm Hg (source: MPBPVP)

WS: 2.39E+003 mg/L (source: WSKOWWIN)

Log Octanol-Air Partition Coefficient (25 deg C) [KOAWIN v1.10]:

Log Kow used: 1.87 (KowWin est)

Log Kaw used: -1.117 (HenryWin est)

Log Koa (KOAWIN v1.10 estimate): 2.987

Log Koa (experimental database): None

Probability of Rapid Biodegradation (BIOWIN v4.10):

Biowin1 (Linear Model) : 0.6874

Biowin2 (Non-Linear Model) : 0.7713

Expert Survey Biodegradation Results:

Biowin3 (Ultimate Survey Model): 2.9202 (weeks )

Biowin4 (Primary Survey Model) : 3.6656 (days-weeks )

MITI Biodegradation Probability:

Biowin5 (MITI Linear Model) : 0.3374

Biowin6 (MITI Non-Linear Model): 0.2535

Anaerobic Biodegradation Probability:

Biowin7 (Anaerobic Linear Model): 0.6769

Ready Biodegradability Prediction: NO

Hydrocarbon Biodegradation (BioHCwin v1.01):

LOG BioHC Half-Life (days) : 0.4952

BioHC Half-Life (days) : 3.1275

Sorption to aerosols (25 Dec C)[AEROWIN v1.00]:

Vapor pressure (liquid/subcooled): 133 Pa (1 mm Hg)

Log Koa (Koawin est ): 2.987

Kp (particle/gas partition coef. (m3/ug)):

Mackay model : 2.25E-008

Octanol/air (Koa) model: 2.38E-010

Fraction sorbed to airborne particulates (phi):

Junge-Pankow model : 8.13E-007

Mackay model : 1.8E-006

Octanol/air (Koa) model: 1.91E-008

Atmospheric Oxidation (25 deg C) [AopWin v1.92]:

Hydroxyl Radicals Reaction:

OVERALL OH Rate Constant = 452.1216 E-12 cm3/molecule-sec

Half-Life = 0.024 Days (12-hr day; 1.5E6 OH/cm3)

Half-Life = 17.033 Min

Ozone Reaction:

No Ozone Reaction Estimation

Fraction sorbed to airborne particulates (phi):

1.31E-006 (Junge-Pankow, Mackay avg)

1.91E-008 (Koa method)

Note: the sorbed fraction may be resistant to atmospheric oxidation

Soil Adsorption Coefficient (KOCWIN v2.00):

Koc : 72.17 L/kg (MCI method)

Log Koc: 1.858 (MCI method)

Koc : 41.93 L/kg (Kow method)

Log Koc: 1.623 (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 = -0.437 (BCF = 0.3653 L/kg wet-wt)

Log Biotransformation Half-life (HL) = -0.7949 days (HL = 0.1604 days)

Log BCF Arnot-Gobas method (upper trophic) = 0.856 (BCF = 7.172)

Log BAF Arnot-Gobas method (upper trophic) = 0.856 (BAF = 7.172)

log Kow used: 1.87 (estimated)

Volatilization from Water:

Henry LC: 0.00187 atm-m3/mole (estimated by Bond SAR Method)

Half-Life from Model River: 1.498 hours

Half-Life from Model Lake : 110.6 hours (4.607 days)

Removal In Wastewater Treatment:

Total removal: 44.07 percent

Total biodegradation: 0.06 percent

Total sludge adsorption: 1.35 percent

Total to Air: 42.66 percent

(using 10000 hr Bio P,A,S)

Level III Fugacity Model:

Mass Amount Half-Life Emissions

(percent) (hr) (kg/hr)

Air 0.44 0.568 1000

Water 48.8 360 1000

Soil 50.6 720 1000

Sediment 0.233 3.24e+003 0

Persistence Time: 136 hr

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