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CAS Num: 004430-36-8
SMILES : S=C=NCCCCSC
CHEM : Erucin [4-(Methylthio)butyl isothiocyanate]
MOL FOR: C6 H11 N1 S2
MOL WT : 161.28
------------------------------ 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) = 2.86
Boiling Pt, Melting Pt, Vapor Pressure Estimations (MPBPWIN v1.43):
Boiling Pt (deg C): 236.66 (Adapted Stein & Brown method)
Melting Pt (deg C): 19.12 (Mean or Weighted MP)
VP(mm Hg,25 deg C): 0.0552 (Mean VP of Antoine & Grain methods)
VP (Pa, 25 deg C) : 7.36 (Mean VP of Antoine & Grain methods)
Water Solubility Estimate from Log Kow (WSKOW v1.41):
Water Solubility at 25 deg C (mg/L): 243.9
log Kow used: 2.86 (estimated)
no-melting pt equation used
Water Sol Estimate from Fragments:
Wat Sol (v1.01 est) = 181.5 mg/L
ECOSAR Class Program (ECOSAR v1.00):
Class(es) found:
Thiocyanates
Henrys Law Constant (25 deg C) [HENRYWIN v3.20]:
Bond Method : 7.76E-005 atm-m3/mole (7.86E+000 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: 4.803E-005 atm-m3/mole (4.866E+000 Pa-m3/mole)
VP: 0.0552 mm Hg (source: MPBPVP)
WS: 244 mg/L (source: WSKOWWIN)
Log Octanol-Air Partition Coefficient (25 deg C) [KOAWIN v1.10]:
Log Kow used: 2.86 (KowWin est)
Log Kaw used: -2.499 (HenryWin est)
Log Koa (KOAWIN v1.10 estimate): 5.359
Log Koa (experimental database): None
Probability of Rapid Biodegradation (BIOWIN v4.10):
Biowin1 (Linear Model) : 0.6708
Biowin2 (Non-Linear Model) : 0.6723
Expert Survey Biodegradation Results:
Biowin3 (Ultimate Survey Model): 2.8428 (weeks )
Biowin4 (Primary Survey Model) : 3.6150 (days-weeks )
MITI Biodegradation Probability:
Biowin5 (MITI Linear Model) : 0.4304
Biowin6 (MITI Non-Linear Model): 0.4030
Anaerobic Biodegradation Probability:
Biowin7 (Anaerobic Linear Model): 0.8605
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): 7.01 Pa (0.0526 mm Hg)
Log Koa (Koawin est ): 5.359
Kp (particle/gas partition coef. (m3/ug)):
Mackay model : 4.28E-007
Octanol/air (Koa) model: 5.61E-008
Fraction sorbed to airborne particulates (phi):
Junge-Pankow model : 1.55E-005
Mackay model : 3.42E-005
Octanol/air (Koa) model: 4.49E-006
Atmospheric Oxidation (25 deg C) [AopWin v1.92]:
Hydroxyl Radicals Reaction:
OVERALL OH Rate Constant = 15.6965 E-12 cm3/molecule-sec
Half-Life = 0.681 Days (12-hr day; 1.5E6 OH/cm3)
Half-Life = 8.177 Hrs
Ozone Reaction:
No Ozone Reaction Estimation
Reaction With Nitrate Radicals May Be Important!
Fraction sorbed to airborne particulates (phi):
Not available
Note: the sorbed fraction may be resistant to atmospheric oxidation
Soil Adsorption Coefficient (KOCWIN v2.00):
Koc : 214.2 L/kg (MCI method)
Log Koc: 2.331 (MCI method)
Koc : 641.9 L/kg (Kow method)
Log Koc: 2.807 (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 = 1.554 (BCF = 35.8 L/kg wet-wt)
Log Biotransformation Half-life (HL) = -0.7299 days (HL = 0.1863 days)
Log BCF Arnot-Gobas method (upper trophic) = 1.576 (BCF = 37.63)
Log BAF Arnot-Gobas method (upper trophic) = 1.576 (BAF = 37.63)
log Kow used: 2.86 (estimated)
Volatilization from Water:
Henry LC: 7.76E-005 atm-m3/mole (estimated by Bond SAR Method)
Half-Life from Model River: 10.88 hours
Half-Life from Model Lake : 225.2 hours (9.381 days)
Removal In Wastewater Treatment:
Total removal: 8.33 percent
Total biodegradation: 0.11 percent
Total sludge adsorption: 4.44 percent
Total to Air: 3.78 percent
(using 10000 hr Bio P,A,S)
Level III Fugacity Model:
Mass Amount Half-Life Emissions
(percent) (hr) (kg/hr)
Air 1.87 16.4 1000
Water 23.7 360 1000
Soil 74.1 720 1000
Sediment 0.238 3.24e+003 0
Persistence Time: 418 hr