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CAS Num: 000099-85-4
SMILES : C(=CCC(=C1)C)(C1)C(C)C
CHEM : 1,4-Cyclohexadiene, 1-methyl-4-(1-methylethyl)-
MOL FOR: C10 H16
MOL WT : 136.24
------------------------------ 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) = 4.75
Log Kow (Exper. database match) = 4.50
Exper. Ref: LI,J & PERDUE,EM (1995)
Boiling Pt, Melting Pt, Vapor Pressure Estimations (MPBPWIN v1.43):
Boiling Pt (deg C): 169.36 (Adapted Stein & Brown method)
Melting Pt (deg C): -31.15 (Mean or Weighted MP)
VP(mm Hg,25 deg C): 1.15 (Mean VP of Antoine & Grain methods)
VP (Pa, 25 deg C) : 153 (Mean VP of Antoine & Grain methods)
MP (exp database): -10 deg C
BP (exp database): 183 deg C
VP (exp database): 1.09E+00 mm Hg (1.45E+002 Pa) at 25 deg C
Water Solubility Estimate from Log Kow (WSKOW v1.41):
Water Solubility at 25 deg C (mg/L): 3.618
log Kow used: 4.50 (expkow database)
no-melting pt equation used
Water Sol (Exper. database match) = 8.68 mg/L (22 deg C)
Exper. Ref: LI,J & PERDUE,EM (1995)
Water Sol Estimate from Fragments:
Wat Sol (v1.01 est) = 59.034 mg/L
ECOSAR Class Program (ECOSAR v1.00):
Class(es) found:
Neutral Organics
Henrys Law Constant (25 deg C) [HENRYWIN v3.20]:
Bond Method : 4.48E-001 atm-m3/mole (4.54E+004 Pa-m3/mole)
Group Method: Incomplete
Exper Database: 2.25E-02 atm-m3/mole (2.28E+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: 5.698E-002 atm-m3/mole (5.773E+003 Pa-m3/mole)
VP: 1.15 mm Hg (source: MPBPVP)
WS: 3.62 mg/L (source: WSKOWWIN)
Log Octanol-Air Partition Coefficient (25 deg C) [KOAWIN v1.10]:
Log Kow used: 4.50 (exp database)
Log Kaw used: -0.036 (exp database)
Log Koa (KOAWIN v1.10 estimate): 4.536
Log Koa (experimental database): None
Probability of Rapid Biodegradation (BIOWIN v4.10):
Biowin1 (Linear Model) : 0.6827
Biowin2 (Non-Linear Model) : 0.7454
Expert Survey Biodegradation Results:
Biowin3 (Ultimate Survey Model): 2.8981 (weeks )
Biowin4 (Primary Survey Model) : 3.6512 (days-weeks )
MITI Biodegradation Probability:
Biowin5 (MITI Linear Model) : 0.3092
Biowin6 (MITI Non-Linear Model): 0.2852
Anaerobic Biodegradation Probability:
Biowin7 (Anaerobic Linear Model): 0.0444
Ready Biodegradability Prediction: NO
Hydrocarbon Biodegradation (BioHCwin v1.01):
LOG BioHC Half-Life (days) : 0.6544
BioHC Half-Life (days) : 4.5120
Sorption to aerosols (25 Dec C)[AEROWIN v1.00]:
Vapor pressure (liquid/subcooled): 145 Pa (1.09 mm Hg)
Log Koa (Koawin est ): 4.536
Kp (particle/gas partition coef. (m3/ug)):
Mackay model : 2.06E-008
Octanol/air (Koa) model: 8.43E-009
Fraction sorbed to airborne particulates (phi):
Junge-Pankow model : 7.46E-007
Mackay model : 1.65E-006
Octanol/air (Koa) model: 6.75E-007
Atmospheric Oxidation (25 deg C) [AopWin v1.92]:
Hydroxyl Radicals Reaction:
OVERALL OH Rate Constant = 178.0786 E-12 cm3/molecule-sec
Half-Life = 0.060 Days (12-hr day; 1.5E6 OH/cm3)
Half-Life = 0.721 Hrs
Ozone Reaction:
OVERALL Ozone Rate Constant = 86.000000 E-17 cm3/molecule-sec
Half-Life = 0.013 Days (at 7E11 mol/cm3)
Half-Life = 19.189 Min
Reaction With Nitrate Radicals May Be Important!
Fraction sorbed to airborne particulates (phi):
1.2E-006 (Junge-Pankow, Mackay avg)
6.75E-007 (Koa method)
Note: the sorbed fraction may be resistant to atmospheric oxidation
Soil Adsorption Coefficient (KOCWIN v2.00):
Koc : 1120 L/kg (MCI method)
Log Koc: 3.049 (MCI method)
Koc : 8038 L/kg (Kow method)
Log Koc: 3.905 (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 = 2.636 (BCF = 432.6 L/kg wet-wt)
Log Biotransformation Half-life (HL) = 0.4309 days (HL = 2.697 days)
Log BCF Arnot-Gobas method (upper trophic) = 2.920 (BCF = 831.8)
Log BAF Arnot-Gobas method (upper trophic) = 2.925 (BAF = 841.4)
log Kow used: 4.50 (expkow database)
Volatilization from Water:
Henry LC: 0.0225 atm-m3/mole (Henry experimental database)
Half-Life from Model River: 1.221 hours
Half-Life from Model Lake : 111.2 hours (4.633 days)
Removal In Wastewater Treatment:
Total removal: 92.85 percent
Total biodegradation: 0.17 percent
Total sludge adsorption: 36.95 percent
Total to Air: 55.72 percent
(using 10000 hr Bio P,A,S)
Level III Fugacity Model:
Mass Amount Half-Life Emissions
(percent) (hr) (kg/hr)
Air 0.439 0.586 1000
Water 43.6 360 1000
Soil 54.3 720 1000
Sediment 1.7 3.24e+003 0
Persistence Time: 142 hr