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CAS Number: 20748-87-2
SMILES : O=C(OCCCCCC)C(CCCC)CC
CHEM : Hexanoic acid, 2-ethyl-, hexyl ester
MOL FOR: C14 H28 O2
MOL WT : 228.38
------------------------------ 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) = 5.70
Boiling Pt, Melting Pt, Vapor Pressure Estimations (MPBPVP v1.43):
Boiling Pt (deg C): 271.46 (Adapted Stein & Brown method)
Melting Pt (deg C): 23.28 (Mean or Weighted MP)
VP(mm Hg,25 deg C): 0.00852 (Mean VP of Antoine & Grain methods)
VP (Pa, 25 deg C) : 1.14 (Mean VP of Antoine & Grain methods)
Water Solubility Estimate from Log Kow (WSKOW v1.42):
Water Solubility at 25 deg C (mg/L): 0.4196
log Kow used: 5.70 (estimated)
no-melting pt equation used
Water Sol Estimate from Fragments:
Wat Sol (v1.01 est) = 0.7213 mg/L
ECOSAR Class Program (ECOSAR v1.00):
Class(es) found:
Esters
Henrys Law Constant (25 deg C) [HENRYWIN v3.20]:
Bond Method : 3.96E-003 atm-m3/mole (4.01E+002 Pa-m3/mole)
Group Method: 7.73E-003 atm-m3/mole (7.84E+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: 6.102E-003 atm-m3/mole (6.183E+002 Pa-m3/mole)
VP: 0.00852 mm Hg (source: MPBPVP)
WS: 0.42 mg/L (source: WSKOWWIN)
Log Octanol-Air Partition Coefficient (25 deg C) [KOAWIN v1.10]:
Log Kow used: 5.70 (KowWin est)
Log Kaw used: -0.791 (HenryWin est)
Log Koa (KOAWIN v1.10 estimate): 6.491
Log Koa (experimental database): None
Probability of Rapid Biodegradation (BIOWIN v4.10):
Biowin1 (Linear Model) : 1.0299
Biowin2 (Non-Linear Model) : 0.9995
Expert Survey Biodegradation Results:
Biowin3 (Ultimate Survey Model): 3.4314 (days-weeks )
Biowin4 (Primary Survey Model) : 4.2853 (hours-days )
MITI Biodegradation Probability:
Biowin5 (MITI Linear Model) : 0.7718
Biowin6 (MITI Non-Linear Model): 0.9005
Anaerobic Biodegradation Probability:
Biowin7 (Anaerobic Linear Model): 0.2018
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): 1.17 Pa (0.00876 mm Hg)
Log Koa (Koawin est ): 6.491
Kp (particle/gas partition coef. (m3/ug)):
Mackay model : 2.57E-006
Octanol/air (Koa) model: 7.6E-007
Fraction sorbed to airborne particulates (phi):
Junge-Pankow model : 9.28E-005
Mackay model : 0.000205
Octanol/air (Koa) model: 6.08E-005
Atmospheric Oxidation (25 deg C) [AopWin v1.92]:
Hydroxyl Radicals Reaction:
OVERALL OH Rate Constant = 13.7615 E-12 cm3/molecule-sec
Half-Life = 0.777 Days (12-hr day; 1.5E6 OH/cm3)
Half-Life = 9.327 Hrs
Ozone Reaction:
No Ozone Reaction Estimation
Fraction sorbed to airborne particulates (phi):
0.000149 (Junge-Pankow, Mackay avg)
6.08E-005 (Koa method)
Note: the sorbed fraction may be resistant to atmospheric oxidation
Soil Adsorption Coefficient (KOCWIN v2.00):
Koc : 2220 L/kg (MCI method)
Log Koc: 3.346 (MCI method)
Koc : 1.029E+004 L/kg (Kow method)
Log Koc: 4.012 (Kow method)
Aqueous Base/Acid-Catalyzed Hydrolysis (25 deg C) [HYDROWIN v2.00]:
Total Kb for pH > 8 at 25 deg C : 1.391E-003 L/mol-sec
Kb Half-Life at pH 8: 15.790 years
Kb Half-Life at pH 7: 157.904 years
(Total Kb applies only to esters, carbmates, alkyl halides)
Bioaccumulation Estimates (BCFBAF v3.01):
Log BCF from regression-based method = 2.055 (BCF = 113.4 L/kg wet-wt)
Log Biotransformation Half-life (HL) = -0.3008 days (HL = 0.5002 days)
Log BCF Arnot-Gobas method (upper trophic) = 2.283 (BCF = 192.1)
Log BAF Arnot-Gobas method (upper trophic) = 2.286 (BAF = 193.4)
log Kow used: 5.70 (estimated)
Volatilization from Water:
Henry LC: 0.00773 atm-m3/mole (estimated by Group SAR Method)
Half-Life from Model River: 1.657 hours
Half-Life from Model Lake : 144.8 hours (6.033 days)
Removal In Wastewater Treatment:
Total removal: 92.36 percent
Total biodegradation: 0.63 percent
Total sludge adsorption: 82.75 percent
Total to Air: 8.97 percent
(using 10000 hr Bio P,A,S)
Level III Fugacity Model:
Mass Amount Half-Life Emissions
(percent) (hr) (kg/hr)
Air 5.39 18.7 1000
Water 23.6 208 1000
Soil 69.9 416 1000
Sediment 1.09 1.87e+003 0
Persistence Time: 211 hr