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CAS Num: 002396-83-0

SMILES : O=C(OCC)CC=CCC

CHEM : 3-Hexenoic acid, ethyl ester

MOL FOR: C8 H14 O2

MOL WT : 142.20

------------------------------ 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) = 2.61

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

Boiling Pt (deg C): 176.55 (Adapted Stein & Brown method)

Melting Pt (deg C): -33.28 (Mean or Weighted MP)

VP(mm Hg,25 deg C): 1.85 (Mean VP of Antoine & Grain methods)

VP (Pa, 25 deg C) : 246 (Mean VP of Antoine & Grain methods)

BP (exp database): 166.5 deg C

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

Water Solubility at 25 deg C (mg/L): 480.5

log Kow used: 2.61 (estimated)

no-melting pt equation used

Water Sol Estimate from Fragments:

Wat Sol (v1.01 est) = 988.69 mg/L

ECOSAR Class Program (ECOSAR v1.00):

Class(es) found:

Esters

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

Bond Method : 6.36E-004 atm-m3/mole (6.44E+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: 7.204E-004 atm-m3/mole (7.299E+001 Pa-m3/mole)

VP: 1.85 mm Hg (source: MPBPVP)

WS: 481 mg/L (source: WSKOWWIN)

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

Log Kow used: 2.61 (KowWin est)

Log Kaw used: -1.585 (HenryWin est)

Log Koa (KOAWIN v1.10 estimate): 4.195

Log Koa (experimental database): None

Probability of Rapid Biodegradation (BIOWIN v4.10):

Biowin1 (Linear Model) : 0.9625

Biowin2 (Non-Linear Model) : 0.9990

Expert Survey Biodegradation Results:

Biowin3 (Ultimate Survey Model): 3.3235 (days-weeks )

Biowin4 (Primary Survey Model) : 4.1406 (days )

MITI Biodegradation Probability:

Biowin5 (MITI Linear Model) : 0.7943

Biowin6 (MITI Non-Linear Model): 0.9047

Anaerobic Biodegradation Probability:

Biowin7 (Anaerobic Linear Model): 0.4620

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): 224 Pa (1.68 mm Hg)

Log Koa (Koawin est ): 4.195

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

Mackay model : 1.34E-008

Octanol/air (Koa) model: 3.85E-009

Fraction sorbed to airborne particulates (phi):

Junge-Pankow model : 4.84E-007

Mackay model : 1.07E-006

Octanol/air (Koa) model: 3.08E-007

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

Hydroxyl Radicals Reaction:

OVERALL OH Rate Constant = 59.4525 E-12 cm3/molecule-sec [Cis-isomer]

OVERALL OH Rate Constant = 67.0525 E-12 cm3/molecule-sec [Trans-isomer]

Half-Life = 2.159 Hrs (12-hr day; 1.5E6 OH/cm3) [Cis-isomer]

Half-Life = 1.914 Hrs (12-hr day; 1.5E6 OH/cm3) [Trans-isomer]

Ozone Reaction:

OVERALL Ozone Rate Constant = 13.000000 E-17 cm3/molecule-sec [Cis-]

OVERALL Ozone Rate Constant = 20.000000 E-17 cm3/molecule-sec [Trans-]

Half-Life = 2.116 Hrs (at 7E11 mol/cm3) [Cis-isomer]

Half-Life = 1.375 Hrs (at 7E11 mol/cm3) [Trans-isomer]

Reaction With Nitrate Radicals May Be Important!

Fraction sorbed to airborne particulates (phi):

7.78E-007 (Junge-Pankow, Mackay avg)

3.08E-007 (Koa method)

Note: the sorbed fraction may be resistant to atmospheric oxidation

Soil Adsorption Coefficient (KOCWIN v2.00):

Koc : 64.46 L/kg (MCI method)

Log Koc: 1.809 (MCI method)

Koc : 201 L/kg (Kow method)

Log Koc: 2.303 (Kow method)

Aqueous Base/Acid-Catalyzed Hydrolysis (25 deg C) [HYDROWIN v2.00]:

Total Kb for pH > 8 at 25 deg C : 1.967E-001 L/mol-sec

Kb Half-Life at pH 8: 40.783 days

Kb Half-Life at pH 7: 1.117 years

(Total Kb applies only to esters, carbmates, alkyl halides)

Bioaccumulation Estimates (BCFBAF v3.00):

Log BCF from regression-based method = 1.391 (BCF = 24.63 L/kg wet-wt)

Log Biotransformation Half-life (HL) = -1.0644 days (HL = 0.08622 days)

Log BCF Arnot-Gobas method (upper trophic) = 1.269 (BCF = 18.6)

Log BAF Arnot-Gobas method (upper trophic) = 1.269 (BAF = 18.6)

log Kow used: 2.61 (estimated)

Volatilization from Water:

Henry LC: 0.000636 atm-m3/mole (estimated by Bond SAR Method)

Half-Life from Model River: 2.315 hours

Half-Life from Model Lake : 125.2 hours (5.218 days)

Removal In Wastewater Treatment:

Total removal: 24.12 percent

Total biodegradation: 0.09 percent

Total sludge adsorption: 2.88 percent

Total to Air: 21.16 percent

(using 10000 hr Bio P,A,S)

Level III Fugacity Model:

Mass Amount Half-Life Emissions

(percent) (hr) (kg/hr)

Air 0.725 1.42 1000

Water 35.1 208 1000

Soil 64 416 1000

Sediment 0.139 1.87e+003 0

Persistence Time: 161 hr

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