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CAS Num: 007774-74-5

SMILES : s(cc1)c(S)c1

CHEM : 2-THIOPHENETHIOL

MOL FOR: C4 H4 S2

MOL WT : 116.20

------------------------------ 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) = 2.51

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

Boiling Pt (deg C): 186.37 (Adapted Stein & Brown method)

Melting Pt (deg C): -0.04 (Mean or Weighted MP)

VP(mm Hg,25 deg C): 0.708 (Mean VP of Antoine & Grain methods)

VP (Pa, 25 deg C) : 94.4 (Mean VP of Antoine & Grain methods)

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

Water Solubility at 25 deg C (mg/L): 750.6

log Kow used: 2.51 (estimated)

no-melting pt equation used

Water Sol Estimate from Fragments:

Wat Sol (v1.01 est) = 592.23 mg/L

ECOSAR Class Program (ECOSAR v1.00):

Class(es) found:

Phenols

Thiophenes

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

Bond Method : 2.84E-004 atm-m3/mole (2.88E+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: 1.442E-004 atm-m3/mole (1.461E+001 Pa-m3/mole)

VP: 0.708 mm Hg (source: MPBPVP)

WS: 751 mg/L (source: WSKOWWIN)

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

Log Kow used: 2.51 (KowWin est)

Log Kaw used: -1.935 (HenryWin est)

Log Koa (KOAWIN v1.10 estimate): 4.445

Log Koa (experimental database): None

Probability of Rapid Biodegradation (BIOWIN v4.10):

Biowin1 (Linear Model) : 0.6922

Biowin2 (Non-Linear Model) : 0.7956

Expert Survey Biodegradation Results:

Biowin3 (Ultimate Survey Model): 2.9424 (weeks )

Biowin4 (Primary Survey Model) : 3.6801 (days-weeks )

MITI Biodegradation Probability:

Biowin5 (MITI Linear Model) : 0.3911

Biowin6 (MITI Non-Linear Model): 0.3850

Anaerobic Biodegradation Probability:

Biowin7 (Anaerobic Linear Model): 0.5498

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): 85.9 Pa (0.644 mm Hg)

Log Koa (Koawin est ): 4.445

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

Mackay model : 3.49E-008

Octanol/air (Koa) model: 6.84E-009

Fraction sorbed to airborne particulates (phi):

Junge-Pankow model : 1.26E-006

Mackay model : 2.8E-006

Octanol/air (Koa) model: 5.47E-007

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

Hydroxyl Radicals Reaction:

OVERALL OH Rate Constant = 55.3214 E-12 cm3/molecule-sec

Half-Life = 0.193 Days (12-hr day; 1.5E6 OH/cm3)

Half-Life = 2.320 Hrs

Ozone Reaction:

No Ozone Reaction Estimation

Fraction sorbed to airborne particulates (phi):

2.03E-006 (Junge-Pankow, Mackay avg)

5.47E-007 (Koa method)

Note: the sorbed fraction may be resistant to atmospheric oxidation

Soil Adsorption Coefficient (KOCWIN v2.00):

Koc : 128.3 L/kg (MCI method)

Log Koc: 2.108 (MCI method)

Koc : 150.7 L/kg (Kow method)

Log Koc: 2.178 (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 = 1.320 (BCF = 20.91 L/kg wet-wt)

Log Biotransformation Half-life (HL) = -0.6229 days (HL = 0.2383 days)

Log BCF Arnot-Gobas method (upper trophic) = 1.392 (BCF = 24.66)

Log BAF Arnot-Gobas method (upper trophic) = 1.392 (BAF = 24.66)

log Kow used: 2.51 (estimated)

Volatilization from Water:

Henry LC: 0.000284 atm-m3/mole (estimated by Bond SAR Method)

Half-Life from Model River: 3.322 hours

Half-Life from Model Lake : 126.6 hours (5.276 days)

Removal In Wastewater Treatment:

Total removal: 14.42 percent

Total biodegradation: 0.09 percent

Total sludge adsorption: 2.78 percent

Total to Air: 11.54 percent

(using 10000 hr Bio P,A,S)

Level III Fugacity Model:

Mass Amount Half-Life Emissions

(percent) (hr) (kg/hr)

Air 1.02 4.64 1000

Water 25.3 360 1000

Soil 73.5 720 1000

Sediment 0.175 3.24e+003 0

Persistence Time: 326 hr

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