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CAS Number: 1937-62-8
SMILES : O=C(OC)CCCCCCCC=CCCCCCCCC
CHEM : 9-Octadecenoic acid, methyl ester, (E)-
MOL FOR: C19 H36 O2
MOL WT : 296.50
------------------------------ 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) = 8.02
Log Kow (Exper. database match) = 7.45
Exper. Ref: KROP,HB ET AL. (1997)
Boiling Pt, Melting Pt, Vapor Pressure Estimations (MPBPVP v1.43):
Boiling Pt (deg C): 352.56 (Adapted Stein & Brown method)
Melting Pt (deg C): 80.09 (Mean or Weighted MP)
VP(mm Hg,25 deg C): 0.000115 (Modified Grain method)
VP (Pa, 25 deg C) : 0.0153 (Modified Grain method)
MP (exp database): -19.9 deg C
BP (exp database): 218.5 @ 20 mm Hg deg C
VP (exp database): 6.29E-06 mm Hg (8.39E-004 Pa) at 25 deg C
Water Solubility Estimate from Log Kow (WSKOW v1.42):
Water Solubility at 25 deg C (mg/L): 0.005588
log Kow used: 7.45 (expkow database)
no-melting pt equation used
Water Sol Estimate from Fragments:
Wat Sol (v1.01 est) = 0.0025525 mg/L
ECOSAR Class Program (ECOSAR v1.00):
Class(es) found:
Esters
Henrys Law Constant (25 deg C) [HENRYWIN v3.20]:
Bond Method : 1.44E-002 atm-m3/mole (1.45E+003 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: 8.029E-003 atm-m3/mole (8.135E+002 Pa-m3/mole)
VP: 0.000115 mm Hg (source: MPBPVP)
WS: 0.00559 mg/L (source: WSKOWWIN)
Log Octanol-Air Partition Coefficient (25 deg C) [KOAWIN v1.10]:
Log Kow used: 7.45 (exp database)
Log Kaw used: -0.230 (HenryWin est)
Log Koa (KOAWIN v1.10 estimate): 7.680
Log Koa (experimental database): None
Probability of Rapid Biodegradation (BIOWIN v4.10):
Biowin1 (Linear Model) : 0.8890
Biowin2 (Non-Linear Model) : 0.9912
Expert Survey Biodegradation Results:
Biowin3 (Ultimate Survey Model): 2.9825 (weeks )
Biowin4 (Primary Survey Model) : 3.9180 (days )
MITI Biodegradation Probability:
Biowin5 (MITI Linear Model) : 0.8788
Biowin6 (MITI Non-Linear Model): 0.9256
Anaerobic Biodegradation Probability:
Biowin7 (Anaerobic Linear Model): 0.7479
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): 0.000839 Pa (6.29E-006 mm Hg)
Log Koa (Koawin est ): 7.680
Kp (particle/gas partition coef. (m3/ug)):
Mackay model : 0.00358
Octanol/air (Koa) model: 1.17E-005
Fraction sorbed to airborne particulates (phi):
Junge-Pankow model : 0.114
Mackay model : 0.222
Octanol/air (Koa) model: 0.000939
Atmospheric Oxidation (25 deg C) [AopWin v1.92]:
Hydroxyl Radicals Reaction:
OVERALL OH Rate Constant = 74.7180 E-12 cm3/molecule-sec [Cis-isomer]
OVERALL OH Rate Constant = 82.3180 E-12 cm3/molecule-sec [Trans-isomer]
Half-Life = 1.718 Hrs (12-hr day; 1.5E6 OH/cm3) [Cis-isomer]
Half-Life = 1.559 Hrs (12-hr day; 1.5E6 OH/cm3) [Trans-isomer]
Ozone Reaction:
OVERALL Ozone Rate Constant = 13.000000 E-17 cm3/molecule-sec [Cis-]
OVERALL Ozone Rate Constant = 20.000000 E-17 cm3/molecule-sec [Trans-]
Half-Life = 2.116 Hrs (at 7E11 mol/cm3) [Cis-isomer]
Half-Life = 1.375 Hrs (at 7E11 mol/cm3) [Trans-isomer]
Reaction With Nitrate Radicals May Be Important!
Fraction sorbed to airborne particulates (phi):
0.168 (Junge-Pankow, Mackay avg)
0.000939 (Koa method)
Note: the sorbed fraction may be resistant to atmospheric oxidation
Soil Adsorption Coefficient (KOCWIN v2.00):
Koc : 4.747E+004 L/kg (MCI method)
Log Koc: 4.676 (MCI method)
Koc : 9.557E+004 L/kg (Kow method)
Log Koc: 4.980 (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 = 3.307 (BCF = 2028 L/kg wet-wt)
Log Biotransformation Half-life (HL) = 0.2924 days (HL = 1.961 days)
Log BCF Arnot-Gobas method (upper trophic) = 2.071 (BCF = 117.8)
Log BAF Arnot-Gobas method (upper trophic) = 2.700 (BAF = 500.6)
log Kow used: 7.45 (expkow database)
Volatilization from Water:
Henry LC: 0.00773 atm-m3/mole (estimated by Group SAR Method)
Half-Life from Model River: 1.888 hours
Half-Life from Model Lake : 165 hours (6.874 days)
Removal In Wastewater Treatment:
Total removal: 94.00 percent
Total biodegradation: 0.78 percent
Total sludge adsorption: 93.02 percent
Total to Air: 0.21 percent
(using 10000 hr Bio P,A,S)
Level III Fugacity Model:
Mass Amount Half-Life Emissions
(percent) (hr) (kg/hr)
Air 0.168 1.31 1000
Water 17.7 360 1000
Soil 72.1 720 1000
Sediment 10.1 3.24e+003 0
Persistence Time: 467 hr