SMILES : O=C(OCCCC)c(c(ccc1)C(=O)OCCCC)c1
CHEM : 1,2-Benzenedicarboxylic acid, dibutyl ester
CAS NUM: 000084-74-2
MOL FOR: C16 H22 O4
MOL WT : 278.35
------------------------------ EPI SUMMARY (v3.20) --------------------------
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) = 4.61
Log Kow (Exper. database match) = 4.50
Exper. Ref: Ellington,JJ & Floyd,TL (1996)
Boiling Pt, Melting Pt, Vapor Pressure Estimations (MPBPWIN v1.42):
Boiling Pt (deg C): 337.89 (Adapted Stein & Brown method)
Melting Pt (deg C): 6.04 (Mean or Weighted MP)
VP(mm Hg,25 deg C): 0.000228 (Modified Grain method)
MP (exp database): -35 deg C
BP (exp database): 340 deg C
VP (exp database): 2.01E-05 mm Hg at 25 deg C
Water Solubility Estimate from Log Kow (WSKOW v1.41):
Water Solubility at 25 deg C (mg/L): 2.351
log Kow used: 4.50 (expkow database)
no-melting pt equation used
Water Sol (Exper. database match) = 11.2 mg/L (25 deg C)
Exper. Ref: HOWARD,PH ET AL. (1985)
Water Sol Estimate from Fragments:
Wat Sol (v1.01 est) = 6.4114 mg/L
Wat Sol (Exper. database match) = 11.20
Exper. Ref: HOWARD,PH ET AL. (1985)
ECOSAR Class Program (ECOSAR v0.99h):
Class(es) found:
Esters
Henrys Law Constant (25 deg C) [HENRYWIN v3.10]:
Bond Method : 1.22E-006 atm-m3/mole
Group Method: 4.45E-007 atm-m3/mole
Exper Database: 1.81E-06 atm-m3/mole
Henrys LC [VP/WSol estimate using EPI values]: 3.552E-005 atm-m3/mole
Log Octanol-Air Partition Coefficient (25 deg C) [KOAWIN v1.10]:
Log Kow used: 4.50 (exp database)
Log Kaw used: -4.131 (exp database)
Log Koa (KOAWIN v1.10 estimate): 8.631
Log Koa (experimental database): None
Probability of Rapid Biodegradation (BIOWIN v4.10):
Biowin1 (Linear Model) : 1.1803
Biowin2 (Non-Linear Model) : 1.0000
Expert Survey Biodegradation Results:
Biowin3 (Ultimate Survey Model): 3.4612 (days-weeks )
Biowin4 (Primary Survey Model) : 4.4422 (hours-days )
MITI Biodegradation Probability:
Biowin5 (MITI Linear Model) : 0.9017
Biowin6 (MITI Non-Linear Model): 0.9226
Anaerobic Biodegradation Probability:
Biowin7 (Anaerobic Linear Model): 0.1594
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): 0.00268 Pa (2.01E-005 mm Hg)
Log Koa (Koawin est ): 8.631
Kp (particle/gas partition coef. (m3/ug)):
Mackay model : 0.00112
Octanol/air (Koa) model: 0.000105
Fraction sorbed to airborne particulates (phi):
Junge-Pankow model : 0.0389
Mackay model : 0.0822
Octanol/air (Koa) model: 0.00833
Atmospheric Oxidation (25 deg C) [AopWin v1.92]:
Hydroxyl Radicals Reaction:
OVERALL OH Rate Constant = 9.2770 E-12 cm3/molecule-sec
Half-Life = 1.153 Days (12-hr day; 1.5E6 OH/cm3)
Half-Life = 13.836 Hrs
Ozone Reaction:
No Ozone Reaction Estimation
Fraction sorbed to airborne particulates (phi): 0.0605 (Junge,Mackay)
Note: the sorbed fraction may be resistant to atmospheric oxidation
Soil Adsorption Coefficient (PCKOCWIN v1.66):
Koc : 1460
Log Koc: 3.164
Aqueous Base/Acid-Catalyzed Hydrolysis (25 deg C) [HYDROWIN v1.67]:
Total Kb for pH > 8 at 25 deg C : 6.408E-002 L/mol-sec
Kb Half-Life at pH 8: 125.185 days
Kb Half-Life at pH 7: 3.427 years
Bioaccumulation Estimates from Log Kow (BCFWIN v2.17):
Log BCF from regression-based method = 2.765 (BCF = 582.1)
log Kow used: 4.50 (expkow database)
Volatilization from Water:
Henry LC: 1.81E-006 atm-m3/mole (Henry experimental database)
Half-Life from Model River: 814.4 hours (33.93 days)
Half-Life from Model Lake : 6046 hours (251.9 days)
Removal In Wastewater Treatment:
Total removal: 56.06 percent
Total biodegradation: 0.52 percent
Total sludge adsorption: 55.49 percent
Total to Air: 0.04 percent
(using 10000 hr Bio P,A,S)
Level III Fugacity Model:
Mass Amount Half-Life Emissions
(percent) (hr) (kg/hr)
Air 2.89 27.7 1000
Water 24.5 208 1000
Soil 66.7 416 1000
Sediment 5.87 1.87e+003 0
Persistence Time: 312 hr