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CAS Number: 68517-10-2
SMILES : CC(CCCCCCCCCCCCCCC(=O)OC)C
CHEM : Isooctadecanoic acid, methyl ester
MOL FOR: C19 H38 O2
MOL WT : 298.51
------------------------------ 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) = 8.16
Boiling Pt, Melting Pt, Vapor Pressure Estimations (MPBPVP v1.43):
Boiling Pt (deg C): 341.90 (Adapted Stein & Brown method)
Melting Pt (deg C): 72.02 (Mean or Weighted MP)
VP(mm Hg,25 deg C): 7.39E-005 (Modified Grain method)
VP (Pa, 25 deg C) : 0.00985 (Modified Grain method)
Subcooled liquid VP: 0.000205 mm Hg (25 deg C, Mod-Grain method)
: 0.0274 Pa (25 deg C, Mod-Grain method)
Water Solubility Estimate from Log Kow (WSKOW v1.42):
Water Solubility at 25 deg C (mg/L): 0.001354
log Kow used: 8.16 (estimated)
no-melting pt equation used
Water Sol Estimate from Fragments:
Wat Sol (v1.01 est) = 0.0019468 mg/L
ECOSAR Class Program (ECOSAR v1.00):
Class(es) found:
Esters
Henrys Law Constant (25 deg C) [HENRYWIN v3.20]:
Bond Method : 1.63E-002 atm-m3/mole (1.65E+003 Pa-m3/mole)
Group Method: 3.54E-002 atm-m3/mole (3.58E+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: 2.144E-002 atm-m3/mole (2.172E+003 Pa-m3/mole)
VP: 7.39E-005 mm Hg (source: MPBPVP)
WS: 0.00135 mg/L (source: WSKOWWIN)
Log Octanol-Air Partition Coefficient (25 deg C) [KOAWIN v1.10]:
Log Kow used: 8.16 (KowWin est)
Log Kaw used: -0.176 (HenryWin est)
Log Koa (KOAWIN v1.10 estimate): 8.336
Log Koa (experimental database): None
Probability of Rapid Biodegradation (BIOWIN v4.10):
Biowin1 (Linear Model) : 0.7796
Biowin2 (Non-Linear Model) : 0.9453
Expert Survey Biodegradation Results:
Biowin3 (Ultimate Survey Model): 2.6797 (weeks-months)
Biowin4 (Primary Survey Model) : 3.6460 (days-weeks )
MITI Biodegradation Probability:
Biowin5 (MITI Linear Model) : 0.8102
Biowin6 (MITI Non-Linear Model): 0.9110
Anaerobic Biodegradation Probability:
Biowin7 (Anaerobic Linear Model): 0.9672
Ready Biodegradability Prediction: NO
Hydrocarbon Biodegradation (BioHCwin v1.01):
Structure incompatible with current estimation method!
Sorption to aerosols (25 Dec C)[AEROWIN v1.00]:
Vapor pressure (liquid/subcooled): 0.0273 Pa (0.000205 mm Hg)
Log Koa (Koawin est ): 8.336
Kp (particle/gas partition coef. (m3/ug)):
Mackay model : 0.00011
Octanol/air (Koa) model: 5.32E-005
Fraction sorbed to airborne particulates (phi):
Junge-Pankow model : 0.00395
Mackay model : 0.0087
Octanol/air (Koa) model: 0.00424
Atmospheric Oxidation (25 deg C) [AopWin v1.92]:
Hydroxyl Radicals Reaction:
OVERALL OH Rate Constant = 21.6641 E-12 cm3/molecule-sec
Half-Life = 0.494 Days (12-hr day; 1.5E6 OH/cm3)
Half-Life = 5.925 Hrs
Ozone Reaction:
No Ozone Reaction Estimation
Fraction sorbed to airborne particulates (phi):
0.00633 (Junge-Pankow, Mackay avg)
0.00424 (Koa method)
Note: the sorbed fraction may be resistant to atmospheric oxidation
Soil Adsorption Coefficient (KOCWIN v2.00):
Koc : 3.993E+004 L/kg (MCI method)
Log Koc: 4.601 (MCI method)
Koc : 2.361E+005 L/kg (Kow method)
Log Koc: 5.373 (Kow method)
Aqueous Base/Acid-Catalyzed Hydrolysis (25 deg C) [HYDROWIN v2.00]:
Total Kb for pH > 8 at 25 deg C : 3.016E-002 L/mol-sec
Kb Half-Life at pH 8: 266.000 days
Kb Half-Life at pH 7: 7.283 years
(Total Kb applies only to esters, carbmates, alkyl halides)
Bioaccumulation Estimates (BCFBAF v3.01):
Log BCF from regression-based method = 2.960 (BCF = 913 L/kg wet-wt)
Log Biotransformation Half-life (HL) = 0.3267 days (HL = 2.122 days)
Log BCF Arnot-Gobas method (upper trophic) = 1.464 (BCF = 29.1)
Log BAF Arnot-Gobas method (upper trophic) = 2.366 (BAF = 232.5)
log Kow used: 8.16 (estimated)
Volatilization from Water:
Henry LC: 0.0354 atm-m3/mole (estimated by Group SAR Method)
Half-Life from Model River: 1.792 hours
Half-Life from Model Lake : 164.4 hours (6.851 days)
Removal In Wastewater Treatment:
Total removal: 94.05 percent
Total biodegradation: 0.78 percent
Total sludge adsorption: 93.09 percent
Total to Air: 0.18 percent
(using 10000 hr Bio P,A,S)
Level III Fugacity Model:
Mass Amount Half-Life Emissions
(percent) (hr) (kg/hr)
Air 0.829 11.8 1000
Water 19 900 1000
Soil 74.7 1.8e+003 1000
Sediment 5.46 8.1e+003 0
Persistence Time: 835 hr