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CAS Num: 003938-95-2

SMILES : O=C(OCC)C(C)(C)C

CHEM : Propanoic acid, 2,2-dimethyl-, ethyl ester

MOL FOR: C7 H14 O2

MOL WT : 130.19

------------------------------ 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) = 2.23

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

Boiling Pt (deg C): 125.81 (Adapted Stein & Brown method)

Melting Pt (deg C): -49.98 (Mean or Weighted MP)

VP(mm Hg,25 deg C): 16.8 (Mean VP of Antoine & Grain methods)

VP (Pa, 25 deg C) : 2.24E+003 (Mean VP of Antoine & Grain methods)

MP (exp database): -89.5 deg C

BP (exp database): 118.4 deg C

VP (exp database): 1.78E+01 mm Hg (2.37E+003 Pa) at 25 deg C

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

Water Solubility at 25 deg C (mg/L): 1152

log Kow used: 2.23 (estimated)

no-melting pt equation used

Water Sol Estimate from Fragments:

Wat Sol (v1.01 est) = 3468 mg/L

ECOSAR Class Program (ECOSAR v1.00):

Class(es) found:

Esters

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

Bond Method : 5.45E-004 atm-m3/mole (5.52E+001 Pa-m3/mole)

Group Method: Incomplete

For Henry LC Comparison Purposes:

User-Entered Henry LC: not entered

Henrys LC [via VP/WSol estimate using User-Entered or Estimated values]:

HLC: 2.498E-003 atm-m3/mole (2.531E+002 Pa-m3/mole)

VP: 16.8 mm Hg (source: MPBPVP)

WS: 1.15E+003 mg/L (source: WSKOWWIN)

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

Log Kow used: 2.23 (KowWin est)

Log Kaw used: -1.652 (HenryWin est)

Log Koa (KOAWIN v1.10 estimate): 3.882

Log Koa (experimental database): None

Probability of Rapid Biodegradation (BIOWIN v4.10):

Biowin1 (Linear Model) : 0.6758

Biowin2 (Non-Linear Model) : 0.9711

Expert Survey Biodegradation Results:

Biowin3 (Ultimate Survey Model): 2.8396 (weeks )

Biowin4 (Primary Survey Model) : 3.7354 (days-weeks )

MITI Biodegradation Probability:

Biowin5 (MITI Linear Model) : 0.7872

Biowin6 (MITI Non-Linear Model): 0.8928

Anaerobic Biodegradation Probability:

Biowin7 (Anaerobic Linear Model): 0.3814

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): 2.37E+003 Pa (17.8 mm Hg)

Log Koa (Koawin est ): 3.882

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

Mackay model : 1.26E-009

Octanol/air (Koa) model: 1.87E-009

Fraction sorbed to airborne particulates (phi):

Junge-Pankow model : 4.57E-008

Mackay model : 1.01E-007

Octanol/air (Koa) model: 1.5E-007

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

Hydroxyl Radicals Reaction:

OVERALL OH Rate Constant = 2.1635 E-12 cm3/molecule-sec

Half-Life = 4.944 Days (12-hr day; 1.5E6 OH/cm3)

Half-Life = 59.325 Hrs

Ozone Reaction:

No Ozone Reaction Estimation

Fraction sorbed to airborne particulates (phi):

7.34E-008 (Junge-Pankow, Mackay avg)

1.5E-007 (Koa method)

Note: the sorbed fraction may be resistant to atmospheric oxidation

Soil Adsorption Coefficient (KOCWIN v2.00):

Koc : 23.9 L/kg (MCI method)

Log Koc: 1.378 (MCI method)

Koc : 123.9 L/kg (Kow method)

Log Koc: 2.093 (Kow method)

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

Total Kb for pH > 8 at 25 deg C : 5.843E-003 L/mol-sec

Kb Half-Life at pH 8: 3.759 years

Kb Half-Life at pH 7: 37.592 years

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

Bioaccumulation Estimates (BCFBAF v3.00):

Log BCF from regression-based method = 1.136 (BCF = 13.68 L/kg wet-wt)

Log Biotransformation Half-life (HL) = -1.2410 days (HL = 0.05741 days)

Log BCF Arnot-Gobas method (upper trophic) = 0.964 (BCF = 9.199)

Log BAF Arnot-Gobas method (upper trophic) = 0.964 (BAF = 9.199)

log Kow used: 2.23 (estimated)

Volatilization from Water:

Henry LC: 0.000545 atm-m3/mole (estimated by Bond SAR Method)

Half-Life from Model River: 2.39 hours

Half-Life from Model Lake : 121.7 hours (5.073 days)

Removal In Wastewater Treatment:

Total removal: 21.27 percent

Total biodegradation: 0.08 percent

Total sludge adsorption: 2.08 percent

Total to Air: 19.11 percent

(using 10000 hr Bio P,A,S)

Level III Fugacity Model:

Mass Amount Half-Life Emissions

(percent) (hr) (kg/hr)

Air 20.7 119 1000

Water 37.5 360 1000

Soil 41.7 720 1000

Sediment 0.106 3.24e+003 0

Persistence Time: 209 hr

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