This page contains the EPI System Summary only.
For complete control of this information -
Download the free EPI SuiteTM v4.0 program : here
also you can go back to the Datasheet
CAS Number: 139564-43-5
SMILES : CCOC(=O)C(C)C(C)OC(=O)C
CHEM : ethyl 3-acetyloxy-2-methylbutanoate
MOL FOR: C9 H16 O4
MOL WT : 188.23
------------------------------ EPI SUMMARY (v4.00) --------------------------
Physical Property Inputs:
Log Kow (octanol-water): ------
Boiling Point (deg C) : ------
Melting Point (deg C) : ------
Vapor Pressure (mm Hg) : ------
Water Solubility (mg/L): ------
Henry LC (atm-m3/mole) : ------
Log Octanol-Water Partition Coef (SRC):
Log Kow (KOWWIN v1.67 estimate) = 1.73
Boiling Pt, Melting Pt, Vapor Pressure Estimations (MPBPVP v1.43):
Boiling Pt (deg C): 182.73 (Adapted Stein & Brown method)
Melting Pt (deg C): -82.14 (Mean or Weighted MP)
VP(mm Hg,25 deg C): 0.845 (Mean VP of Antoine & Grain methods)
VP (Pa, 25 deg C) : 113 (Mean VP of Antoine & Grain methods)
Water Solubility Estimate from Log Kow (WSKOW v1.41):
Water Solubility at 25 deg C (mg/L): 1667
log Kow used: 1.73 (estimated)
no-melting pt equation used
Water Sol Estimate from Fragments:
Wat Sol (v1.01 est) = 6255.3 mg/L
ECOSAR Class Program (ECOSAR v1.00):
Class(es) found:
Esters
Henrys Law Constant (25 deg C) [HENRYWIN v3.20]:
Bond Method : 1.30E-006 atm-m3/mole (1.31E-001 Pa-m3/mole)
Group Method: 4.25E-007 atm-m3/mole (4.31E-002 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: 1.255E-004 atm-m3/mole (1.272E+001 Pa-m3/mole)
VP: 0.845 mm Hg (source: MPBPVP)
WS: 1.67E+003 mg/L (source: WSKOWWIN)
Log Octanol-Air Partition Coefficient (25 deg C) [KOAWIN v1.10]:
Log Kow used: 1.73 (KowWin est)
Log Kaw used: -4.275 (HenryWin est)
Log Koa (KOAWIN v1.10 estimate): 6.005
Log Koa (experimental database): None
Probability of Rapid Biodegradation (BIOWIN v4.10):
Biowin1 (Linear Model) : 1.0063
Biowin2 (Non-Linear Model) : 0.9998
Expert Survey Biodegradation Results:
Biowin3 (Ultimate Survey Model): 3.0636 (weeks )
Biowin4 (Primary Survey Model) : 4.0341 (days )
MITI Biodegradation Probability:
Biowin5 (MITI Linear Model) : 0.7894
Biowin6 (MITI Non-Linear Model): 0.9082
Anaerobic Biodegradation Probability:
Biowin7 (Anaerobic Linear Model): 0.5558
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): 103 Pa (0.769 mm Hg)
Log Koa (Koawin est ): 6.005
Kp (particle/gas partition coef. (m3/ug)):
Mackay model : 2.93E-008
Octanol/air (Koa) model: 2.48E-007
Fraction sorbed to airborne particulates (phi):
Junge-Pankow model : 1.06E-006
Mackay model : 2.34E-006
Octanol/air (Koa) model: 1.99E-005
Atmospheric Oxidation (25 deg C) [AopWin v1.92]:
Hydroxyl Radicals Reaction:
OVERALL OH Rate Constant = 6.5960 E-12 cm3/molecule-sec
Half-Life = 1.622 Days (12-hr day; 1.5E6 OH/cm3)
Half-Life = 19.459 Hrs
Ozone Reaction:
No Ozone Reaction Estimation
Fraction sorbed to airborne particulates (phi):
1.7E-006 (Junge-Pankow, Mackay avg)
1.99E-005 (Koa method)
Note: the sorbed fraction may be resistant to atmospheric oxidation
Soil Adsorption Coefficient (KOCWIN v2.00):
Koc : 13.37 L/kg (MCI method)
Log Koc: 1.126 (MCI method)
Koc : 56.34 L/kg (Kow method)
Log Koc: 1.751 (Kow method)
Aqueous Base/Acid-Catalyzed Hydrolysis (25 deg C) [HYDROWIN v2.00]:
Total Kb for pH > 8 at 25 deg C : 2.838E-003 L/mol-sec
Kb Half-Life at pH 8: 7.739 years
Kb Half-Life at pH 7: 77.391 years
(Total Kb applies only to esters, carbmates, alkyl halides)
Bioaccumulation Estimates (BCFBAF v3.00):
Log BCF from regression-based method = 0.809 (BCF = 6.444 L/kg wet-wt)
Log Biotransformation Half-life (HL) = -2.3866 days (HL = 0.004106 days)
Log BCF Arnot-Gobas method (upper trophic) = 0.249 (BCF = 1.773)
Log BAF Arnot-Gobas method (upper trophic) = 0.249 (BAF = 1.773)
log Kow used: 1.73 (estimated)
Volatilization from Water:
Henry LC: 4.25E-007 atm-m3/mole (estimated by Group SAR Method)
Half-Life from Model River: 1891 hours (78.81 days)
Half-Life from Model Lake : 2.075E+004 hours (864.5 days)
Removal In Wastewater Treatment:
Total removal: 2.08 percent
Total biodegradation: 0.09 percent
Total sludge adsorption: 1.97 percent
Total to Air: 0.02 percent
(using 10000 hr Bio P,A,S)
Level III Fugacity Model:
Mass Amount Half-Life Emissions
(percent) (hr) (kg/hr)
Air 2.35 38.9 1000
Water 35.4 360 1000
Soil 62.2 720 1000
Sediment 0.0847 3.24e+003 0
Persistence Time: 437 hr