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CAS Number: 63321-70-0
SMILES : CCCCCCCC(=O)OCC(CC)CCCC
CHEM : 2-ethylhexyl octanoate
MOL FOR: C16 H32 O2
MOL WT : 256.43
------------------------------ EPI SUMMARY (v4.00) --------------------------
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 v1.67 estimate) = 6.68
Boiling Pt, Melting Pt, Vapor Pressure Estimations (MPBPVP v1.43):
Boiling Pt (deg C): 302.35 (Adapted Stein & Brown method)
Melting Pt (deg C): 33.91 (Mean or Weighted MP)
VP(mm Hg,25 deg C): 0.00143 (Modified Grain method)
VP (Pa, 25 deg C) : 0.191 (Modified Grain method)
Subcooled liquid VP: 0.00172 mm Hg (25 deg C, Mod-Grain method)
: 0.23 Pa (25 deg C, Mod-Grain method)
Water Solubility Estimate from Log Kow (WSKOW v1.41):
Water Solubility at 25 deg C (mg/L): 0.04267
log Kow used: 6.68 (estimated)
no-melting pt equation used
Water Sol Estimate from Fragments:
Wat Sol (v1.01 est) = 0.068296 mg/L
ECOSAR Class Program (ECOSAR v1.00):
Class(es) found:
Esters
Henrys Law Constant (25 deg C) [HENRYWIN v3.20]:
Bond Method : 6.97E-003 atm-m3/mole (7.07E+002 Pa-m3/mole)
Group Method: 1.20E-002 atm-m3/mole (1.21E+003 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: 1.131E-002 atm-m3/mole (1.146E+003 Pa-m3/mole)
VP: 0.00143 mm Hg (source: MPBPVP)
WS: 0.0427 mg/L (source: WSKOWWIN)
Log Octanol-Air Partition Coefficient (25 deg C) [KOAWIN v1.10]:
Log Kow used: 6.68 (KowWin est)
Log Kaw used: -0.545 (HenryWin est)
Log Koa (KOAWIN v1.10 estimate): 7.225
Log Koa (experimental database): None
Probability of Rapid Biodegradation (BIOWIN v4.10):
Biowin1 (Linear Model) : 1.0165
Biowin2 (Non-Linear Model) : 0.9992
Expert Survey Biodegradation Results:
Biowin3 (Ultimate Survey Model): 3.3694 (days-weeks )
Biowin4 (Primary Survey Model) : 4.2449 (days )
MITI Biodegradation Probability:
Biowin5 (MITI Linear Model) : 0.7871
Biowin6 (MITI Non-Linear Model): 0.9048
Anaerobic Biodegradation Probability:
Biowin7 (Anaerobic Linear Model): 0.2538
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): 0.229 Pa (0.00172 mm Hg)
Log Koa (Koawin est ): 7.225
Kp (particle/gas partition coef. (m3/ug)):
Mackay model : 1.31E-005
Octanol/air (Koa) model: 4.12E-006
Fraction sorbed to airborne particulates (phi):
Junge-Pankow model : 0.000472
Mackay model : 0.00105
Octanol/air (Koa) model: 0.00033
Atmospheric Oxidation (25 deg C) [AopWin v1.92]:
Hydroxyl Radicals Reaction:
OVERALL OH Rate Constant = 18.2309 E-12 cm3/molecule-sec
Half-Life = 0.587 Days (12-hr day; 1.5E6 OH/cm3)
Half-Life = 7.040 Hrs
Ozone Reaction:
No Ozone Reaction Estimation
Fraction sorbed to airborne particulates (phi):
0.000759 (Junge-Pankow, Mackay avg)
0.00033 (Koa method)
Note: the sorbed fraction may be resistant to atmospheric oxidation
Soil Adsorption Coefficient (KOCWIN v2.00):
Koc : 7227 L/kg (MCI method)
Log Koc: 3.859 (MCI method)
Koc : 3.584E+004 L/kg (Kow method)
Log Koc: 4.554 (Kow method)
Aqueous Base/Acid-Catalyzed Hydrolysis (25 deg C) [HYDROWIN v2.00]:
Total Kb for pH > 8 at 25 deg C : 3.416E-002 L/mol-sec
Kb Half-Life at pH 8: 234.845 days
Kb Half-Life at pH 7: 6.430 years
(Total Kb applies only to esters, carbmates, alkyl halides)
Bioaccumulation Estimates (BCFBAF v3.00):
Log BCF from regression-based method = 2.703 (BCF = 504.4 L/kg wet-wt)
Log Biotransformation Half-life (HL) = -0.0225 days (HL = 0.9494 days)
Log BCF Arnot-Gobas method (upper trophic) = 2.296 (BCF = 197.9)
Log BAF Arnot-Gobas method (upper trophic) = 2.378 (BAF = 238.9)
log Kow used: 6.68 (estimated)
Volatilization from Water:
Henry LC: 0.012 atm-m3/mole (estimated by Group SAR Method)
Half-Life from Model River: 1.712 hours
Half-Life from Model Lake : 153 hours (6.373 days)
Removal In Wastewater Treatment:
Total removal: 93.92 percent
Total biodegradation: 0.75 percent
Total sludge adsorption: 91.38 percent
Total to Air: 1.79 percent
(using 10000 hr Bio P,A,S)
Level III Fugacity Model:
Mass Amount Half-Life Emissions
(percent) (hr) (kg/hr)
Air 3.44 14.1 1000
Water 22.1 208 1000
Soil 72 416 1000
Sediment 2.47 1.87e+003 0
Persistence Time: 238 hr