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CAS Num: 000591-78-6
SMILES : O=C(CCCC)C
CHEM : 2-Hexanone
MOL FOR: C6 H12 O1
MOL WT : 100.16
------------------------------ EPI SUMMARY (v4.00) --------------------------
Physical Property Inputs:
Water Solubility (mg/L): ------
Vapor Pressure (mm Hg) : ------
Henry LC (atm-m3/mole) : ------
Log Kow (octanol-water): ------
Boiling Point (deg C) : ------
Melting Point (deg C) : ------
Log Octanol-Water Partition Coef (SRC):
Log Kow (KOWWIN v1.67 estimate) = 1.24
Log Kow (Exper. database match) = 1.38
Exper. Ref: HANSCH,C ET AL. (1995)
Boiling Pt, Melting Pt, Vapor Pressure Estimations (MPBPWIN v1.43):
Boiling Pt (deg C): 118.79 (Adapted Stein & Brown method)
Melting Pt (deg C): -55.08 (Mean or Weighted MP)
VP(mm Hg,25 deg C): 13.6 (Mean VP of Antoine & Grain methods)
VP (Pa, 25 deg C) : 1.81E+003 (Mean VP of Antoine & Grain methods)
MP (exp database): -55.5 deg C
BP (exp database): 127.6 deg C
VP (exp database): 1.16E+01 mm Hg (1.55E+003 Pa) at 25 deg C
Water Solubility Estimate from Log Kow (WSKOW v1.41):
Water Solubility at 25 deg C (mg/L): 7745
log Kow used: 1.38 (expkow database)
no-melting pt equation used
Water Sol (Exper. database match) = 1.72e+004 mg/L (20 deg C)
Exper. Ref: YALKOWSKY,SH & HE,Y (2003)
Water Sol Estimate from Fragments:
Wat Sol (v1.01 est) = 11298 mg/L
ECOSAR Class Program (ECOSAR v1.00):
Class(es) found:
Neutral Organics
Henrys Law Constant (25 deg C) [HENRYWIN v3.20]:
Bond Method : 1.16E-004 atm-m3/mole (1.17E+001 Pa-m3/mole)
Group Method: 1.12E-004 atm-m3/mole (1.13E+001 Pa-m3/mole)
Exper Database: 9.32E-05 atm-m3/mole (9.44E+000 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: 2.314E-004 atm-m3/mole (2.345E+001 Pa-m3/mole)
VP: 13.6 mm Hg (source: MPBPVP)
WS: 7.75E+003 mg/L (source: WSKOWWIN)
Log Octanol-Air Partition Coefficient (25 deg C) [KOAWIN v1.10]:
Log Kow used: 1.38 (exp database)
Log Kaw used: -2.419 (exp database)
Log Koa (KOAWIN v1.10 estimate): 3.799
Log Koa (experimental database): 3.680
Probability of Rapid Biodegradation (BIOWIN v4.10):
Biowin1 (Linear Model) : 0.8151
Biowin2 (Non-Linear Model) : 0.9515
Expert Survey Biodegradation Results:
Biowin3 (Ultimate Survey Model): 3.2537 (days-weeks )
Biowin4 (Primary Survey Model) : 3.9501 (days )
MITI Biodegradation Probability:
Biowin5 (MITI Linear Model) : 0.6810
Biowin6 (MITI Non-Linear Model): 0.8575
Anaerobic Biodegradation Probability:
Biowin7 (Anaerobic Linear Model): 0.0453
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): 1.55E+003 Pa (11.6 mm Hg)
Log Koa (Exp database): 3.680
Kp (particle/gas partition coef. (m3/ug)):
Mackay model : 1.94E-009
Octanol/air (Koa) model: 1.17E-009
Fraction sorbed to airborne particulates (phi):
Junge-Pankow model : 7.01E-008
Mackay model : 1.55E-007
Octanol/air (Koa) model: 9.4E-008
Atmospheric Oxidation (25 deg C) [AopWin v1.92]:
Hydroxyl Radicals Reaction:
OVERALL OH Rate Constant = 6.7601 E-12 cm3/molecule-sec
Half-Life = 1.582 Days (12-hr day; 1.5E6 OH/cm3)
Half-Life = 18.987 Hrs
Ozone Reaction:
No Ozone Reaction Estimation
Fraction sorbed to airborne particulates (phi):
1.13E-007 (Junge-Pankow, Mackay avg)
9.4E-008 (Koa method)
Note: the sorbed fraction may be resistant to atmospheric oxidation
Soil Adsorption Coefficient (KOCWIN v2.00):
Koc : 14.98 L/kg (MCI method)
Log Koc: 1.175 (MCI method)
Koc : 76.56 L/kg (Kow method)
Log Koc: 1.884 (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 v3.00):
Log BCF from regression-based method = 0.578 (BCF = 3.78 L/kg wet-wt)
Log Biotransformation Half-life (HL) = -0.9530 days (HL = 0.1114 days)
Log BCF Arnot-Gobas method (upper trophic) = 0.462 (BCF = 2.901)
Log BAF Arnot-Gobas method (upper trophic) = 0.462 (BAF = 2.901)
log Kow used: 1.38 (expkow database)
Volatilization from Water:
Henry LC: 9.32E-005 atm-m3/mole (Henry experimental database)
Half-Life from Model River: 7.308 hours
Half-Life from Model Lake : 163.6 hours (6.818 days)
Removal In Wastewater Treatment:
Total removal: 6.46 percent
Total biodegradation: 0.09 percent
Total sludge adsorption: 1.78 percent
Total to Air: 4.59 percent
(using 10000 hr Bio P,A,S)
Level III Fugacity Model:
Mass Amount Half-Life Emissions
(percent) (hr) (kg/hr)
Air 6.23 28.2 1000
Water 35.8 208 1000
Soil 57.9 416 1000
Sediment 0.0819 1.87e+003 0
Persistence Time: 214 hr