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CAS Num: 000328-50-7
SMILES : O=C(O)C(=O)CCC(=O)O
CHEM : Pentanedioic acid, 2-oxo-
MOL FOR: C5 H6 O5
MOL WT : 146.10
------------------------------ 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) = -2.08
Boiling Pt, Melting Pt, Vapor Pressure Estimations (MPBPWIN v1.43):
Boiling Pt (deg C): 323.26 (Adapted Stein & Brown method)
Melting Pt (deg C): 117.34 (Mean or Weighted MP)
VP(mm Hg,25 deg C): 7.18E-005 (Modified Grain method)
VP (Pa, 25 deg C) : 0.00957 (Modified Grain method)
MP (exp database): 115.5 deg C
Subcooled liquid VP: 0.000563 mm Hg (25 deg C, Mod-Grain method)
: 0.075 Pa (25 deg C, Mod-Grain method)
Water Solubility Estimate from Log Kow (WSKOW v1.41):
Water Solubility at 25 deg C (mg/L): 1e+006
log Kow used: -2.08 (estimated)
no-melting pt equation used
Water Sol Estimate from Fragments:
Wat Sol (v1.01 est) = 8.3106e+005 mg/L
ECOSAR Class Program (ECOSAR v1.00):
Class(es) found:
Neutral Organics-acid
Henrys Law Constant (25 deg C) [HENRYWIN v3.20]:
Bond Method : 2.15E-014 atm-m3/mole (2.18E-009 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: 1.380E-011 atm-m3/mole (1.399E-006 Pa-m3/mole)
VP: 7.18E-005 mm Hg (source: MPBPVP)
WS: 1E+006 mg/L (source: WSKOWWIN)
Log Octanol-Air Partition Coefficient (25 deg C) [KOAWIN v1.10]:
Log Kow used: -2.08 (KowWin est)
Log Kaw used: -12.056 (HenryWin est)
Log Koa (KOAWIN v1.10 estimate): 9.976
Log Koa (experimental database): None
Probability of Rapid Biodegradation (BIOWIN v4.10):
Biowin1 (Linear Model) : 0.8234
Biowin2 (Non-Linear Model) : 0.9021
Expert Survey Biodegradation Results:
Biowin3 (Ultimate Survey Model): 3.6055 (days-weeks )
Biowin4 (Primary Survey Model) : 4.4081 (hours-days )
MITI Biodegradation Probability:
Biowin5 (MITI Linear Model) : 0.7386
Biowin6 (MITI Non-Linear Model): 0.8078
Anaerobic Biodegradation Probability:
Biowin7 (Anaerobic Linear Model): 1.2616
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): 0.0751 Pa (0.000563 mm Hg)
Log Koa (Koawin est ): 9.976
Kp (particle/gas partition coef. (m3/ug)):
Mackay model : 4E-005
Octanol/air (Koa) model: 0.00232
Fraction sorbed to airborne particulates (phi):
Junge-Pankow model : 0.00144
Mackay model : 0.00319
Octanol/air (Koa) model: 0.157
Atmospheric Oxidation (25 deg C) [AopWin v1.92]:
Hydroxyl Radicals Reaction:
OVERALL OH Rate Constant = 4.6336 E-12 cm3/molecule-sec
Half-Life = 2.308 Days (12-hr day; 1.5E6 OH/cm3)
Half-Life = 27.700 Hrs
Ozone Reaction:
No Ozone Reaction Estimation
Fraction sorbed to airborne particulates (phi):
0.00231 (Junge-Pankow, Mackay avg)
0.157 (Koa method)
Note: the sorbed fraction may be resistant to atmospheric oxidation
Soil Adsorption Coefficient (KOCWIN v2.00):
Koc : 10 L/kg (MCI method)
Log Koc: 1.000 (MCI method)
Koc : 0.05969 L/kg (Kow method)
Log Koc: -1.224 (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 = 0.500 (BCF = 3.162 L/kg wet-wt)
Log Biotransformation Half-life (HL) = -1.7433 days (HL = 0.01806 days)
Log BCF Arnot-Gobas method (upper trophic) = -0.049 (BCF = 0.8934)
Log BAF Arnot-Gobas method (upper trophic) = -0.049 (BAF = 0.8934)
log Kow used: -2.08 (estimated)
Volatilization from Water:
Henry LC: 2.15E-014 atm-m3/mole (estimated by Bond SAR Method)
Half-Life from Model River: 3.292E+010 hours (1.371E+009 days)
Half-Life from Model Lake : 3.591E+011 hours (1.496E+010 days)
Removal In Wastewater Treatment:
Total removal: 1.85 percent
Total biodegradation: 0.09 percent
Total sludge adsorption: 1.75 percent
Total to Air: 0.00 percent
(using 10000 hr Bio P,A,S)
Level III Fugacity Model:
Mass Amount Half-Life Emissions
(percent) (hr) (kg/hr)
Air 7.09e-007 55.4 1000
Water 28.1 208 1000
Soil 71.8 416 1000
Sediment 0.0592 1.87e+003 0
Persistence Time: 414 hr