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CAS Num: 010544-63-5
SMILES : O=C(OCC)C=CC
CHEM : 2-Butenoic acid, ethyl ester
MOL FOR: C6 H10 O2
MOL WT : 114.15
------------------------------ 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) = 1.63
Boiling Pt, Melting Pt, Vapor Pressure Estimations (MPBPWIN v1.43):
Boiling Pt (deg C): 132.84 (Adapted Stein & Brown method)
Melting Pt (deg C): -57.31 (Mean or Weighted MP)
VP(mm Hg,25 deg C): 7.46 (Mean VP of Antoine & Grain methods)
VP (Pa, 25 deg C) : 994 (Mean VP of Antoine & Grain methods)
BP (exp database): 136.5 deg C
Water Solubility Estimate from Log Kow (WSKOW v1.41):
Water Solubility at 25 deg C (mg/L): 4259
log Kow used: 1.63 (estimated)
no-melting pt equation used
Water Sol Estimate from Fragments:
Wat Sol (v1.01 est) = 9411.5 mg/L
ECOSAR Class Program (ECOSAR v1.00):
Class(es) found:
Acrylates
Henrys Law Constant (25 deg C) [HENRYWIN v3.20]:
Bond Method : 1.92E-004 atm-m3/mole (1.95E+001 Pa-m3/mole)
Group Method: 6.14E-005 atm-m3/mole (6.23E+000 Pa-m3/mole)
For Henry LC Comparison Purposes:
User-Entered Henry LC: not entered
Henrys LC [via VP/WSol estimate using User-Entered or Estimated values]:
HLC: 2.631E-004 atm-m3/mole (2.666E+001 Pa-m3/mole)
VP: 7.46 mm Hg (source: MPBPVP)
WS: 4.26E+003 mg/L (source: WSKOWWIN)
Log Octanol-Air Partition Coefficient (25 deg C) [KOAWIN v1.10]:
Log Kow used: 1.63 (KowWin est)
Log Kaw used: -2.105 (HenryWin est)
Log Koa (KOAWIN v1.10 estimate): 3.735
Log Koa (experimental database): None
Probability of Rapid Biodegradation (BIOWIN v4.10):
Biowin1 (Linear Model) : 0.8674
Biowin2 (Non-Linear Model) : 0.9958
Expert Survey Biodegradation Results:
Biowin3 (Ultimate Survey Model): 3.0871 (weeks )
Biowin4 (Primary Survey Model) : 3.9120 (days )
MITI Biodegradation Probability:
Biowin5 (MITI Linear Model) : 0.7789
Biowin6 (MITI Non-Linear Model): 0.9004
Anaerobic Biodegradation Probability:
Biowin7 (Anaerobic Linear Model): 0.7277
Ready Biodegradability Prediction: YES
Hydrocarbon Biodegradation (BioHCwin v1.01):
Structure incompatible with current estimation method!
Sorption to aerosols (25 Dec C)[AEROWIN v1.00]:
Vapor pressure (liquid/subcooled): 916 Pa (6.87 mm Hg)
Log Koa (Koawin est ): 3.735
Kp (particle/gas partition coef. (m3/ug)):
Mackay model : 3.28E-009
Octanol/air (Koa) model: 1.33E-009
Fraction sorbed to airborne particulates (phi):
Junge-Pankow model : 1.18E-007
Mackay model : 2.62E-007
Octanol/air (Koa) model: 1.07E-007
Atmospheric Oxidation (25 deg C) [AopWin v1.92]:
Hydroxyl Radicals Reaction:
OVERALL OH Rate Constant = 21.5377 E-12 cm3/molecule-sec [Cis-isomer]
OVERALL OH Rate Constant = 24.1977 E-12 cm3/molecule-sec [Trans-isomer]
Half-Life = 5.959 Hrs (12-hr day; 1.5E6 OH/cm3) [Cis-isomer]
Half-Life = 5.304 Hrs (12-hr day; 1.5E6 OH/cm3) [Trans-isomer]
Ozone Reaction:
OVERALL Ozone Rate Constant = 0.568750 E-17 cm3/molecule-sec [Cis-]
OVERALL Ozone Rate Constant = 1.137500 E-17 cm3/molecule-sec [Trans-]
Half-Life = 2.015 Days (at 7E11 mol/cm3) [Cis-isomer]
Half-Life = 1.007 Days (at 7E11 mol/cm3) [Trans-isomer]
Fraction sorbed to airborne particulates (phi):
1.9E-007 (Junge-Pankow, Mackay avg)
1.07E-007 (Koa method)
Note: the sorbed fraction may be resistant to atmospheric oxidation
Soil Adsorption Coefficient (KOCWIN v2.00):
Koc : 19.41 L/kg (MCI method)
Log Koc: 1.288 (MCI method)
Koc : 57.69 L/kg (Kow method)
Log Koc: 1.761 (Kow method)
Aqueous Base/Acid-Catalyzed Hydrolysis (25 deg C) [HYDROWIN v2.00]:
Total Kb for pH > 8 at 25 deg C : 8.835E-003 L/mol-sec
Kb Half-Life at pH 8: 2.486 years
Kb Half-Life at pH 7: 24.859 years
(Total Kb applies only to esters, carbmates, alkyl halides)
Bioaccumulation Estimates (BCFBAF v3.00):
Log BCF from regression-based method = 0.743 (BCF = 5.539 L/kg wet-wt)
Log Biotransformation Half-life (HL) = -1.3768 days (HL = 0.04199 days)
Log BCF Arnot-Gobas method (upper trophic) = 0.527 (BCF = 3.367)
Log BAF Arnot-Gobas method (upper trophic) = 0.527 (BAF = 3.367)
log Kow used: 1.63 (estimated)
Volatilization from Water:
Henry LC: 6.14E-005 atm-m3/mole (estimated by Group SAR Method)
Half-Life from Model River: 11.28 hours
Half-Life from Model Lake : 212.6 hours (8.859 days)
Removal In Wastewater Treatment:
Total removal: 5.12 percent
Total biodegradation: 0.09 percent
Total sludge adsorption: 1.87 percent
Total to Air: 3.15 percent
(using 10000 hr Bio P,A,S)
Level III Fugacity Model:
Mass Amount Half-Life Emissions
(percent) (hr) (kg/hr)
Air 1.76 9.56 1000
Water 36.3 360 1000
Soil 61.8 720 1000
Sediment 0.0961 3.24e+003 0
Persistence Time: 321 hr