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CAS Num: 000084-66-2
SMILES : O=C(OCC)c(c(ccc1)C(=O)OCC)c1
CHEM : 1,2-Benzenedicarboxylic acid, diethyl ester
MOL FOR: C12 H14 O4
MOL WT : 222.24
------------------------------ 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) = 2.65
Log Kow (Exper. database match) = 2.42
Exper. Ref: ELLINGTON,JT & FLOYD,TL (1996)
Boiling Pt, Melting Pt, Vapor Pressure Estimations (MPBPWIN v1.43):
Boiling Pt (deg C): 282.13 (Adapted Stein & Brown method)
Melting Pt (deg C): -1.74 (Mean or Weighted MP)
VP(mm Hg,25 deg C): 0.00254 (Modified Grain method)
VP (Pa, 25 deg C) : 0.339 (Modified Grain method)
MP (exp database): -40.5 deg C
BP (exp database): 295 deg C
VP (exp database): 2.10E-03 mm Hg (2.80E-001 Pa) at 25 deg C
Water Solubility Estimate from Log Kow (WSKOW v1.41):
Water Solubility at 25 deg C (mg/L): 287.2
log Kow used: 2.42 (expkow database)
no-melting pt equation used
Water Sol (Exper. database match) = 1080 mg/L (25 deg C)
Exper. Ref: HOWARD,PH ET AL. (1985)
Water Sol Estimate from Fragments:
Wat Sol (v1.01 est) = 719.88 mg/L
ECOSAR Class Program (ECOSAR v1.00):
Class(es) found:
Esters
Henrys Law Constant (25 deg C) [HENRYWIN v3.20]:
Bond Method : 3.94E-007 atm-m3/mole (3.99E-002 Pa-m3/mole)
Group Method: 1.12E-007 atm-m3/mole (1.13E-002 Pa-m3/mole)
Exper Database: 6.10E-07 atm-m3/mole (6.18E-002 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: 2.586E-006 atm-m3/mole (2.620E-001 Pa-m3/mole)
VP: 0.00254 mm Hg (source: MPBPVP)
WS: 287 mg/L (source: WSKOWWIN)
Log Octanol-Air Partition Coefficient (25 deg C) [KOAWIN v1.10]:
Log Kow used: 2.42 (exp database)
Log Kaw used: -4.603 (exp database)
Log Koa (KOAWIN v1.10 estimate): 7.023
Log Koa (experimental database): None
Probability of Rapid Biodegradation (BIOWIN v4.10):
Biowin1 (Linear Model) : 0.9901
Biowin2 (Non-Linear Model) : 0.9997
Expert Survey Biodegradation Results:
Biowin3 (Ultimate Survey Model): 2.9885 (weeks )
Biowin4 (Primary Survey Model) : 3.9850 (days )
MITI Biodegradation Probability:
Biowin5 (MITI Linear Model) : 0.8710
Biowin6 (MITI Non-Linear Model): 0.9153
Anaerobic Biodegradation Probability:
Biowin7 (Anaerobic Linear Model): 0.6909
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): 0.28 Pa (0.0021 mm Hg)
Log Koa (Koawin est ): 7.023
Kp (particle/gas partition coef. (m3/ug)):
Mackay model : 1.07E-005
Octanol/air (Koa) model: 2.59E-006
Fraction sorbed to airborne particulates (phi):
Junge-Pankow model : 0.000387
Mackay model : 0.000856
Octanol/air (Koa) model: 0.000207
Atmospheric Oxidation (25 deg C) [AopWin v1.92]:
Hydroxyl Radicals Reaction:
OVERALL OH Rate Constant = 3.4658 E-12 cm3/molecule-sec
Half-Life = 3.086 Days (12-hr day; 1.5E6 OH/cm3)
Half-Life = 37.034 Hrs
Ozone Reaction:
No Ozone Reaction Estimation
Fraction sorbed to airborne particulates (phi):
0.000622 (Junge-Pankow, Mackay avg)
0.000207 (Koa method)
Note: the sorbed fraction may be resistant to atmospheric oxidation
Soil Adsorption Coefficient (KOCWIN v2.00):
Koc : 104.9 L/kg (MCI method)
Log Koc: 2.021 (MCI method)
Koc : 135.7 L/kg (Kow method)
Log Koc: 2.132 (Kow method)
Experimental Log Koc: 1.84 (database)
Aqueous Base/Acid-Catalyzed Hydrolysis (25 deg C) [HYDROWIN v2.00]:
Total Kb for pH > 8 at 25 deg C : 7.551E-002 L/mol-sec
Kb Half-Life at pH 8: 106.231 days
Kb Half-Life at pH 7: 2.908 years
(Total Kb applies only to esters, carbmates, alkyl halides)
Bioaccumulation Estimates (BCFBAF v3.00):
Log BCF from regression-based method = 1.264 (BCF = 18.35 L/kg wet-wt)
Log Biotransformation Half-life (HL) = -1.7079 days (HL = 0.01959 days)
Log BCF Arnot-Gobas method (upper trophic) = 0.770 (BCF = 5.889)
Log BAF Arnot-Gobas method (upper trophic) = 0.770 (BAF = 5.889)
log Kow used: 2.42 (expkow database)
Volatilization from Water:
Henry LC: 6.1E-007 atm-m3/mole (Henry experimental database)
Half-Life from Model River: 1432 hours (59.68 days)
Half-Life from Model Lake : 1.575E+004 hours (656.3 days)
Removal In Wastewater Treatment:
Total removal: 2.92 percent
Total biodegradation: 0.10 percent
Total sludge adsorption: 2.79 percent
Total to Air: 0.03 percent
(using 10000 hr Bio P,A,S)
Level III Fugacity Model:
Mass Amount Half-Life Emissions
(percent) (hr) (kg/hr)
Air 2.77 74.1 1000
Water 25.4 360 1000
Soil 71.7 720 1000
Sediment 0.153 3.24e+003 0
Persistence Time: 508 hr