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CAS Number: 20777-45-1


CHEM : Cyclohexanol, 5-methyl-2-(1-methylethyl)-, acetate, (1.alpha.,2.beta.

,5.beta.)- (9CI)

MOL FOR: C12 H22 O2

MOL WT : 198.31

------------------------------ EPI SUMMARY (v4.11) --------------------------

Henry LC (atm-m3/mole) : ------

Log Kow (octanol-water): ------

Boiling Point (deg C) : ------

Water Solubility (mg/L): ------

Physical Property Inputs:

Vapor Pressure (mm Hg) : ------

Melting Point (deg C) : ------

Log Octanol-Water Partition Coef (SRC):

Log Kow (KOWWIN v1.68 estimate) = 4.39

Log Kow (Exper. database match) = 4.00

Exper. Ref: GRIFFIN,S ET AL. (1999)

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

Boiling Pt (deg C): 234.50 (Adapted Stein & Brown method)

Melting Pt (deg C): 0.67 (Mean or Weighted MP)

VP(mm Hg,25 deg C): 0.0913 (Mean VP of Antoine & Grain methods)

VP (Pa, 25 deg C) : 12.2 (Mean VP of Antoine & Grain methods)

MP (exp database): < 25 deg C

BP (exp database): 227 deg C

VP (exp database): 1.04E-01 mm Hg (1.39E+001 Pa) at 25 deg C

Water Solubility Estimate from Log Kow (WSKOW v1.42):

Water Solubility at 25 deg C (mg/L): 17.13

log Kow used: 4.00 (expkow database)

no-melting pt equation used

Water Sol Estimate from Fragments:

Wat Sol (v1.01 est) = 53.781 mg/L

ECOSAR Class Program (ECOSAR v1.11):

Class(es) found:


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

Bond Method : 9.90E-004 atm-m3/mole (1.00E+002 Pa-m3/mole)

Group Method: 8.29E-004 atm-m3/mole (8.40E+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: 1.391E-003 atm-m3/mole (1.409E+002 Pa-m3/mole)

VP: 0.0913 mm Hg (source: MPBPVP)

WS: 17.1 mg/L (source: WSKOWWIN)

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

Log Kow used: 4.00 (exp database)

Log Kaw used: -1.393 (HenryWin est)

Log Koa (KOAWIN v1.10 estimate): 5.393

Log Koa (experimental database): None

Probability of Rapid Biodegradation (BIOWIN v4.10):

Biowin1 (Linear Model) : 0.8273

Biowin2 (Non-Linear Model) : 0.9862

Expert Survey Biodegradation Results:

Biowin3 (Ultimate Survey Model): 2.9011 (weeks )

Biowin4 (Primary Survey Model) : 3.7906 (days )

MITI Biodegradation Probability:

Biowin5 (MITI Linear Model) : 0.5134

Biowin6 (MITI Non-Linear Model): 0.3884

Anaerobic Biodegradation Probability:

Biowin7 (Anaerobic Linear Model): 0.2821

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): 13.9 Pa (0.104 mm Hg)

Log Koa (Koawin est ): 5.393

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

Mackay model : 2.16E-007

Octanol/air (Koa) model: 6.07E-008

Fraction sorbed to airborne particulates (phi):

Junge-Pankow model : 7.81E-006

Mackay model : 1.73E-005

Octanol/air (Koa) model: 4.85E-006

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

Hydroxyl Radicals Reaction:

OVERALL OH Rate Constant = 18.4105 E-12 cm3/molecule-sec

Half-Life = 0.581 Days (12-hr day; 1.5E6 OH/cm3)

Half-Life = 6.972 Hrs

Ozone Reaction:

No Ozone Reaction Estimation

Fraction sorbed to airborne particulates (phi):

1.26E-005 (Junge-Pankow, Mackay avg)

4.85E-006 (Koa method)

Note: the sorbed fraction may be resistant to atmospheric oxidation

Soil Adsorption Coefficient (KOCWIN v2.00):

Koc : 493 L/kg (MCI method)

Log Koc: 2.693 (MCI method)

Koc : 1180 L/kg (Kow method)

Log Koc: 3.072 (Kow method)

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

Total Kb for pH > 8 at 25 deg C : 3.014E-002 L/mol-sec

Kb Half-Life at pH 8: 266.184 days

Kb Half-Life at pH 7: 7.288 years

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

Bioaccumulation Estimates (BCFBAF v3.01):

Log BCF from regression-based method = 2.306 (BCF = 202.4 L/kg wet-wt)

Log Biotransformation Half-life (HL) = -0.4610 days (HL = 0.3459 days)

Log BCF Arnot-Gobas method (upper trophic) = 2.111 (BCF = 129)

Log BAF Arnot-Gobas method (upper trophic) = 2.111 (BAF = 129)

log Kow used: 4.00 (expkow database)

Volatilization from Water:

Henry LC: 0.000829 atm-m3/mole (estimated by Group SAR Method)

Half-Life from Model River: 2.432 hours

Half-Life from Model Lake : 144.6 hours (6.025 days)

Removal In Wastewater Treatment:

Total removal: 45.68 percent

Total biodegradation: 0.26 percent

Total sludge adsorption: 26.84 percent

Total to Air: 18.58 percent

(using 10000 hr Bio P,A,S)

Level III Fugacity Model:

Mass Amount Half-Life Emissions

(percent) (hr) (kg/hr)

Air 2.64 13.9 1000

Water 20.3 360 1000

Soil 76.6 720 1000

Sediment 0.395 3.24e+003 0

Persistence Time: 344 hr

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