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CAS Number: 61788-66-7
SMILES : O(C(=O))CCCCCCCC=CCCCCCCCC
CHEM : Fatty acids, vegetable-oil
MOL FOR: C18 H34 O2
MOL WT : 282.47
------------------------------ 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) = 7.47
Boiling Pt, Melting Pt, Vapor Pressure Estimations (MPBPVP v1.43):
Boiling Pt (deg C): 341.94 (Adapted Stein & Brown method)
Melting Pt (deg C): 79.54 (Mean or Weighted MP)
VP(mm Hg,25 deg C): 6.19E-005 (Modified Grain method)
VP (Pa, 25 deg C) : 0.00826 (Modified Grain method)
Subcooled liquid VP: 0.000205 mm Hg (25 deg C, Mod-Grain method)
: 0.0273 Pa (25 deg C, Mod-Grain method)
Water Solubility Estimate from Log Kow (WSKOW v1.42):
Water Solubility at 25 deg C (mg/L): 0.006495
log Kow used: 7.47 (estimated)
no-melting pt equation used
Water Sol Estimate from Fragments:
Wat Sol (v1.01 est) = 0.0050956 mg/L
ECOSAR Class Program (ECOSAR v1.00):
Class(es) found:
Esters
Henrys Law Constant (25 deg C) [HENRYWIN v3.20]:
Bond Method : 1.96E-002 atm-m3/mole (1.99E+003 Pa-m3/mole)
Group Method: 1.28E-002 atm-m3/mole (1.30E+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: 3.542E-003 atm-m3/mole (3.589E+002 Pa-m3/mole)
VP: 6.19E-005 mm Hg (source: MPBPVP)
WS: 0.00649 mg/L (source: WSKOWWIN)
Log Octanol-Air Partition Coefficient (25 deg C) [KOAWIN v1.10]:
Log Kow used: 7.47 (KowWin est)
Log Kaw used: -0.096 (HenryWin est)
Log Koa (KOAWIN v1.10 estimate): 7.566
Log Koa (experimental database): None
Probability of Rapid Biodegradation (BIOWIN v4.10):
Biowin1 (Linear Model) : 0.8957
Biowin2 (Non-Linear Model) : 0.9928
Expert Survey Biodegradation Results:
Biowin3 (Ultimate Survey Model): 3.0135 (weeks )
Biowin4 (Primary Survey Model) : 3.9382 (days )
MITI Biodegradation Probability:
Biowin5 (MITI Linear Model) : 0.9201
Biowin6 (MITI Non-Linear Model): 0.9482
Anaerobic Biodegradation Probability:
Biowin7 (Anaerobic Linear Model): 0.8274
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): 0.0273 Pa (0.000205 mm Hg)
Log Koa (Koawin est ): 7.566
Kp (particle/gas partition coef. (m3/ug)):
Mackay model : 0.00011
Octanol/air (Koa) model: 9.04E-006
Fraction sorbed to airborne particulates (phi):
Junge-Pankow model : 0.00395
Mackay model : 0.0087
Octanol/air (Koa) model: 0.000722
Atmospheric Oxidation (25 deg C) [AopWin v1.92]:
Hydroxyl Radicals Reaction:
OVERALL OH Rate Constant = 75.9823 E-12 cm3/molecule-sec [Cis-isomer]
OVERALL OH Rate Constant = 83.5823 E-12 cm3/molecule-sec [Trans-isomer]
Half-Life = 1.689 Hrs (12-hr day; 1.5E6 OH/cm3) [Cis-isomer]
Half-Life = 1.536 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):
0.00633 (Junge-Pankow, Mackay avg)
0.000722 (Koa method)
Note: the sorbed fraction may be resistant to atmospheric oxidation
Soil Adsorption Coefficient (KOCWIN v2.00):
Koc : 2.959E+004 L/kg (MCI method)
Log Koc: 4.471 (MCI method)
Koc : 9.804E+004 L/kg (Kow method)
Log Koc: 4.991 (Kow method)
Aqueous Base/Acid-Catalyzed Hydrolysis (25 deg C) [HYDROWIN v2.00]:
Total Kb for pH > 8 at 25 deg C : 5.604E+000 L/mol-sec
Kb Half-Life at pH 8: 1.431 days
Kb Half-Life at pH 7: 14.315 days
(Total Kb applies only to esters, carbmates, alkyl halides)
Bioaccumulation Estimates (BCFBAF v3.01):
Log BCF from regression-based method = 3.298 (BCF = 1986 L/kg wet-wt)
Log Biotransformation Half-life (HL) = 0.0890 days (HL = 1.227 days)
Log BCF Arnot-Gobas method (upper trophic) = 1.857 (BCF = 71.88)
Log BAF Arnot-Gobas method (upper trophic) = 2.226 (BAF = 168.1)
log Kow used: 7.47 (estimated)
Volatilization from Water:
Henry LC: 0.0128 atm-m3/mole (estimated by Group SAR Method)
Half-Life from Model River: 1.792 hours
Half-Life from Model Lake : 160.5 hours (6.686 days)
Removal In Wastewater Treatment:
Total removal: 94.02 percent
Total biodegradation: 0.77 percent
Total sludge adsorption: 92.92 percent
Total to Air: 0.32 percent
(using 10000 hr Bio P,A,S)
Level III Fugacity Model:
Mass Amount Half-Life Emissions
(percent) (hr) (kg/hr)
Air 0.185 1.3 1000
Water 19.2 360 1000
Soil 73.9 720 1000
Sediment 6.73 3.24e+003 0
Persistence Time: 436 hr