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CAS Num: 001551-44-6

SMILES : O=C(OC(CCCC1)C1)CCC

CHEM : Butanoic acid, cyclohexyl ester

MOL FOR: C10 H18 O2

MOL WT : 170.25

------------------------------ 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) = 3.62

Boiling Pt, Melting Pt, Vapor Pressure Estimations (MPBPWIN v1.43):

Boiling Pt (deg C): 219.25 (Adapted Stein & Brown method)

Melting Pt (deg C): -3.31 (Mean or Weighted MP)

VP(mm Hg,25 deg C): 0.187 (Mean VP of Antoine & Grain methods)

VP (Pa, 25 deg C) : 25 (Mean VP of Antoine & Grain methods)

BP (exp database): 213 deg C

Water Solubility Estimate from Log Kow (WSKOW v1.41):

Water Solubility at 25 deg C (mg/L): 49.2

log Kow used: 3.62 (estimated)

no-melting pt equation used

Water Sol Estimate from Fragments:

Wat Sol (v1.01 est) = 300.65 mg/L

ECOSAR Class Program (ECOSAR v1.00):

Class(es) found:

Esters

Henrys Law Constant (25 deg C) [HENRYWIN v3.20]:

Bond Method : 5.62E-004 atm-m3/mole (5.69E+001 Pa-m3/mole)

Group Method: 2.39E-004 atm-m3/mole (2.42E+001 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: 8.514E-004 atm-m3/mole (8.627E+001 Pa-m3/mole)

VP: 0.187 mm Hg (source: MPBPVP)

WS: 49.2 mg/L (source: WSKOWWIN)

Log Octanol-Air Partition Coefficient (25 deg C) [KOAWIN v1.10]:

Log Kow used: 3.62 (KowWin est)

Log Kaw used: -1.639 (HenryWin est)

Log Koa (KOAWIN v1.10 estimate): 5.259

Log Koa (experimental database): None

Probability of Rapid Biodegradation (BIOWIN v4.10):

Biowin1 (Linear Model) : 0.8407

Biowin2 (Non-Linear Model) : 0.9907

Expert Survey Biodegradation Results:

Biowin3 (Ultimate Survey Model): 2.9631 (weeks )

Biowin4 (Primary Survey Model) : 3.8311 (days )

MITI Biodegradation Probability:

Biowin5 (MITI Linear Model) : 0.7597

Biowin6 (MITI Non-Linear Model): 0.8796

Anaerobic Biodegradation Probability:

Biowin7 (Anaerobic Linear Model): 0.4197

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): 23.1 Pa (0.173 mm Hg)

Log Koa (Koawin est ): 5.259

Kp (particle/gas partition coef. (m3/ug)):

Mackay model : 1.3E-007

Octanol/air (Koa) model: 4.46E-008

Fraction sorbed to airborne particulates (phi):

Junge-Pankow model : 4.7E-006

Mackay model : 1.04E-005

Octanol/air (Koa) model: 3.57E-006

Atmospheric Oxidation (25 deg C) [AopWin v1.92]:

Hydroxyl Radicals Reaction:

OVERALL OH Rate Constant = 13.4335 E-12 cm3/molecule-sec

Half-Life = 0.796 Days (12-hr day; 1.5E6 OH/cm3)

Half-Life = 9.555 Hrs

Ozone Reaction:

No Ozone Reaction Estimation

Fraction sorbed to airborne particulates (phi):

7.55E-006 (Junge-Pankow, Mackay avg)

3.57E-006 (Koa method)

Note: the sorbed fraction may be resistant to atmospheric oxidation

Soil Adsorption Coefficient (KOCWIN v2.00):

Koc : 218.7 L/kg (MCI method)

Log Koc: 2.340 (MCI method)

Koc : 727.5 L/kg (Kow method)

Log Koc: 2.862 (Kow method)

Aqueous Base/Acid-Catalyzed Hydrolysis (25 deg C) [HYDROWIN v2.00]:

Total Kb for pH > 8 at 25 deg C : 1.563E-002 L/mol-sec

Kb Half-Life at pH 8: 1.405 years

Kb Half-Life at pH 7: 14.054 years

(Total Kb applies only to esters, carbmates, alkyl halides)

Bioaccumulation Estimates (BCFBAF v3.00):

Log BCF from regression-based method = 2.059 (BCF = 114.5 L/kg wet-wt)

Log Biotransformation Half-life (HL) = -0.8328 days (HL = 0.147 days)

Log BCF Arnot-Gobas method (upper trophic) = 1.739 (BCF = 54.84)

Log BAF Arnot-Gobas method (upper trophic) = 1.739 (BAF = 54.84)

log Kow used: 3.62 (estimated)

Volatilization from Water:

Henry LC: 0.000239 atm-m3/mole (estimated by Group SAR Method)

Half-Life from Model River: 4.528 hours

Half-Life from Model Lake : 158.8 hours (6.617 days)

Removal In Wastewater Treatment:

Total removal: 23.98 percent

Total biodegradation: 0.19 percent

Total sludge adsorption: 15.14 percent

Total to Air: 8.65 percent

(using 10000 hr Bio P,A,S)

Level III Fugacity Model:

Mass Amount Half-Life Emissions

(percent) (hr) (kg/hr)

Air 2.8 19.1 1000

Water 22.3 360 1000

Soil 74.6 720 1000

Sediment 0.228 3.24e+003 0

Persistence Time: 375 hr

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