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CAS Number: 928-47-2
SMILES : S(C(=O)C)CCCC
CHEM : ETHANETHIOIC ACID, S-BUTYL ESTER
MOL FOR: C6 H12 O1 S1
MOL WT : 132.22
------------------------------ EPI SUMMARY (v4.10) --------------------------
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 v1.68 estimate) = 1.70
Boiling Pt, Melting Pt, Vapor Pressure Estimations (MPBPVP v1.43):
Boiling Pt (deg C): 181.88 (Adapted Stein & Brown method)
Melting Pt (deg C): -19.46 (Mean or Weighted MP)
VP(mm Hg,25 deg C): 0.881 (Mean VP of Antoine & Grain methods)
VP (Pa, 25 deg C) : 117 (Mean VP of Antoine & Grain methods)
Water Solubility Estimate from Log Kow (WSKOW v1.42):
Water Solubility at 25 deg C (mg/L): 3203
log Kow used: 1.70 (estimated)
no-melting pt equation used
Water Sol Estimate from Fragments:
Wat Sol (v1.01 est) = 5080.7 mg/L
ECOSAR Class Program (ECOSAR v1.00):
Class(es) found:
Esters
Henrys Law Constant (25 deg C) [HENRYWIN v3.20]:
Bond Method : 1.46E-004 atm-m3/mole (1.48E+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: 4.785E-005 atm-m3/mole (4.849E+000 Pa-m3/mole)
VP: 0.881 mm Hg (source: MPBPVP)
WS: 3.2E+003 mg/L (source: WSKOWWIN)
Log Octanol-Air Partition Coefficient (25 deg C) [KOAWIN v1.10]:
Log Kow used: 1.70 (KowWin est)
Log Kaw used: -2.224 (HenryWin est)
Log Koa (KOAWIN v1.10 estimate): 3.924
Log Koa (experimental database): None
Probability of Rapid Biodegradation (BIOWIN v4.10):
Biowin1 (Linear Model) : 0.7930
Biowin2 (Non-Linear Model) : 0.9514
Expert Survey Biodegradation Results:
Biowin3 (Ultimate Survey Model): 3.2053 (weeks )
Biowin4 (Primary Survey Model) : 3.9260 (days )
MITI Biodegradation Probability:
Biowin5 (MITI Linear Model) : 0.4679
Biowin6 (MITI Non-Linear Model): 0.5090
Anaerobic Biodegradation Probability:
Biowin7 (Anaerobic Linear Model): 0.4372
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): 107 Pa (0.801 mm Hg)
Log Koa (Koawin est ): 3.924
Kp (particle/gas partition coef. (m3/ug)):
Mackay model : 2.81E-008
Octanol/air (Koa) model: 2.06E-009
Fraction sorbed to airborne particulates (phi):
Junge-Pankow model : 1.01E-006
Mackay model : 2.25E-006
Octanol/air (Koa) model: 1.65E-007
Atmospheric Oxidation (25 deg C) [AopWin v1.92]:
Hydroxyl Radicals Reaction:
OVERALL OH Rate Constant = 8.5413 E-12 cm3/molecule-sec
Half-Life = 1.252 Days (12-hr day; 1.5E6 OH/cm3)
Half-Life = 15.027 Hrs
Ozone Reaction:
No Ozone Reaction Estimation
Fraction sorbed to airborne particulates (phi):
1.63E-006 (Junge-Pankow, Mackay avg)
1.65E-007 (Koa method)
Note: the sorbed fraction may be resistant to atmospheric oxidation
Soil Adsorption Coefficient (KOCWIN v2.00):
Koc : 9.13 L/kg (MCI method)
Log Koc: 0.960 (MCI method)
Koc : 43.27 L/kg (Kow method)
Log Koc: 1.636 (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 v3.01):
Log BCF from regression-based method = 0.787 (BCF = 6.118 L/kg wet-wt)
Log Biotransformation Half-life (HL) = -0.7577 days (HL = 0.1747 days)
Log BCF Arnot-Gobas method (upper trophic) = 0.722 (BCF = 5.276)
Log BAF Arnot-Gobas method (upper trophic) = 0.722 (BAF = 5.276)
log Kow used: 1.70 (estimated)
Volatilization from Water:
Henry LC: 0.000146 atm-m3/mole (estimated by Bond SAR Method)
Half-Life from Model River: 5.785 hours
Half-Life from Model Lake : 159.5 hours (6.647 days)
Removal In Wastewater Treatment:
Total removal: 8.70 percent
Total biodegradation: 0.09 percent
Total sludge adsorption: 1.84 percent
Total to Air: 6.76 percent
(using 10000 hr Bio P,A,S)
Level III Fugacity Model:
Mass Amount Half-Life Emissions
(percent) (hr) (kg/hr)
Air 7.12 30 1000
Water 42.1 360 1000
Soil 50.7 720 1000
Sediment 0.0932 3.24e+003 0
Persistence Time: 245 hr