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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

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