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CAS Number: 2423-10-1
SMILES : O=CCCCCCCCC=CCCCCCCCC
CHEM : 9-OCTADECENAL, (Z)-
MOL FOR: C18 H34 O1
MOL WT : 266.47
------------------------------ 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) = 7.48
Boiling Pt, Melting Pt, Vapor Pressure Estimations (MPBPVP v1.43):
Boiling Pt (deg C): 344.13 (Adapted Stein & Brown method)
Melting Pt (deg C): 64.10 (Mean or Weighted MP)
VP(mm Hg,25 deg C): 7.83E-005 (Modified Grain method)
VP (Pa, 25 deg C) : 0.0104 (Modified Grain method)
Subcooled liquid VP: 0.000182 mm Hg (25 deg C, Mod-Grain method)
: 0.0242 Pa (25 deg C, Mod-Grain method)
Water Solubility Estimate from Log Kow (WSKOW v1.42):
Water Solubility at 25 deg C (mg/L): 0.007882
log Kow used: 7.48 (estimated)
no-melting pt equation used
Water Sol Estimate from Fragments:
Wat Sol (v1.01 est) = 0.016308 mg/L
ECOSAR Class Program (ECOSAR v1.00):
Class(es) found:
Aldehydes (Mono)
Henrys Law Constant (25 deg C) [HENRYWIN v3.20]:
Bond Method : 5.55E-003 atm-m3/mole (5.63E+002 Pa-m3/mole)
Group Method: 3.97E-003 atm-m3/mole (4.02E+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: 3.483E-003 atm-m3/mole (3.529E+002 Pa-m3/mole)
VP: 7.83E-005 mm Hg (source: MPBPVP)
WS: 0.00788 mg/L (source: WSKOWWIN)
Log Octanol-Air Partition Coefficient (25 deg C) [KOAWIN v1.10]:
Log Kow used: 7.48 (KowWin est)
Log Kaw used: -0.644 (HenryWin est)
Log Koa (KOAWIN v1.10 estimate): 8.124
Log Koa (experimental database): None
Probability of Rapid Biodegradation (BIOWIN v4.10):
Biowin1 (Linear Model) : 1.0137
Biowin2 (Non-Linear Model) : 0.9997
Expert Survey Biodegradation Results:
Biowin3 (Ultimate Survey Model): 2.9310 (weeks )
Biowin4 (Primary Survey Model) : 3.9290 (days )
MITI Biodegradation Probability:
Biowin5 (MITI Linear Model) : 1.0354
Biowin6 (MITI Non-Linear Model): 0.9751
Anaerobic Biodegradation Probability:
Biowin7 (Anaerobic Linear Model): 0.7782
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): 0.0243 Pa (0.000182 mm Hg)
Log Koa (Koawin est ): 8.124
Kp (particle/gas partition coef. (m3/ug)):
Mackay model : 0.000124
Octanol/air (Koa) model: 3.27E-005
Fraction sorbed to airborne particulates (phi):
Junge-Pankow model : 0.00445
Mackay model : 0.00979
Octanol/air (Koa) model: 0.00261
Atmospheric Oxidation (25 deg C) [AopWin v1.92]:
Hydroxyl Radicals Reaction:
OVERALL OH Rate Constant = 98.8331 E-12 cm3/molecule-sec [Cis-isomer]
OVERALL OH Rate Constant = 106.4331 E-12 cm3/molecule-sec [Trans-isomer]
Half-Life = 1.299 Hrs (12-hr day; 1.5E6 OH/cm3) [Cis-isomer]
Half-Life = 1.206 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):
0.00712 (Junge-Pankow, Mackay avg)
0.00261 (Koa method)
Note: the sorbed fraction may be resistant to atmospheric oxidation
Soil Adsorption Coefficient (KOCWIN v2.00):
Koc : 7994 L/kg (MCI method)
Log Koc: 3.903 (MCI method)
Koc : 6.811E+004 L/kg (Kow method)
Log Koc: 4.833 (Kow method)
Aqueous Base/Acid-Catalyzed Hydrolysis (25 deg C) [HYDROWIN v2.00]:
Rate constants can NOT be estimated for this structure!
Bioaccumulation Estimates (BCFBAF v3.01):
Log BCF from regression-based method = 3.294 (BCF = 1968 L/kg wet-wt)
Log Biotransformation Half-life (HL) = 1.1395 days (HL = 13.79 days)
Log BCF Arnot-Gobas method (upper trophic) = 2.851 (BCF = 709.1)
Log BAF Arnot-Gobas method (upper trophic) = 4.894 (BAF = 7.827e+004)
log Kow used: 7.48 (estimated)
Volatilization from Water:
Henry LC: 0.00397 atm-m3/mole (estimated by Group SAR Method)
Half-Life from Model River: 1.906 hours
Half-Life from Model Lake : 157.7 hours (6.57 days)
Removal In Wastewater Treatment:
Total removal: 93.99 percent
Total biodegradation: 0.78 percent
Total sludge adsorption: 93.11 percent
Total to Air: 0.10 percent
(using 10000 hr Bio P,A,S)
Level III Fugacity Model:
Mass Amount Half-Life Emissions
(percent) (hr) (kg/hr)
Air 0.176 1.17 1000
Water 20.8 360 1000
Soil 77 720 1000
Sediment 2.01 3.24e+003 0
Persistence Time: 413 hr