2-(4-Isobutylphenyl)propanoic pentanoic anhydride C18H26O3 structure – Flashcards

Predicted data is generated using the ACD/Labs Percepta Platform – PhysChem Module

Predicted data is generated using the US Environmental Protection Agency’s EPISuite™

 
 Log Octanol-Water Partition Coef (SRC):
 Log Kow (KOWWIN v1.67 estimate) = 4.97

 Boiling Pt, Melting Pt, Vapor Pressure Estimations (MPBPWIN v1.42):
 Boiling Pt (deg C): 325.09 (Adapted Stein & Brown method)
 Melting Pt (deg C): 67.81 (Mean or Weighted MP)
 VP(mm Hg,25 deg C): 0.000202 (Modified Grain method)
 Subcooled liquid VP: 0.00051 mm Hg (25 deg C, Mod-Grain method)

 Water Solubility Estimate from Log Kow (WSKOW v1.41):
 Water Solubility at 25 deg C (mg/L): 0.7977
 log Kow used: 4.97 (estimated)
 no-melting pt equation used

 Water Sol Estimate from Fragments:
 Wat Sol (v1.01 est) = 0.89157 mg/L

 ECOSAR Class Program (ECOSAR v0.99h):
 Class(es) found:
 Neutral Organics

 Henrys Law Constant (25 deg C) [HENRYWIN v3.10]:
 Bond Method : 2.31E-005 atm-m3/mole
 Group Method: Incomplete
 Henrys LC [VP/WSol estimate using EPI values]: 9.676E-005 atm-m3/mole

 Log Octanol-Air Partition Coefficient (25 deg C) [KOAWIN v1.10]:
 Log Kow used: 4.97 (KowWin est)
 Log Kaw used: -3.025 (HenryWin est)
 Log Koa (KOAWIN v1.10 estimate): 7.995
 Log Koa (experimental database): None

 Probability of Rapid Biodegradation (BIOWIN v4.10):
 Biowin1 (Linear Model) : 0.8271
 Biowin2 (Non-Linear Model) : 0.8679
 Expert Survey Biodegradation Results:
 Biowin3 (Ultimate Survey Model): 2.7061 (weeks-months)
 Biowin4 (Primary Survey Model) : 3.5608 (days-weeks )
 MITI Biodegradation Probability:
 Biowin5 (MITI Linear Model) : -0.0852
 Biowin6 (MITI Non-Linear Model): 0.0185
 Anaerobic Biodegradation Probability:
 Biowin7 (Anaerobic Linear Model): -0.4727
 Ready Biodegradability Prediction: NO

Hydrocarbon Biodegradation (BioHCwin v1.01):
 Structure incompatible with current estimation method!

 Sorption to aerosols (25 Dec C)[AEROWIN v1.00]:
 Vapor pressure (liquid/subcooled): 0.068 Pa (0.00051 mm Hg)
 Log Koa (Koawin est ): 7.995
 Kp (particle/gas partition coef. (m3/ug)):
 Mackay model : 4.41E-005 
 Octanol/air (Koa) model: 2.43E-005 
 Fraction sorbed to airborne particulates (phi):
 Junge-Pankow model : 0.00159 
 Mackay model : 0.00352 
 Octanol/air (Koa) model: 0.00194 

 Atmospheric Oxidation (25 deg C) [AopWin v1.92]:
 Hydroxyl Radicals Reaction:
 OVERALL OH Rate Constant = 13.5540 E-12 cm3/molecule-sec
 Half-Life = 0.789 Days (12-hr day; 1.5E6 OH/cm3)
 Half-Life = 9.470 Hrs
 Ozone Reaction:
 No Ozone Reaction Estimation
 Fraction sorbed to airborne particulates (phi): 0.00255 (Junge,Mackay)
 Note: the sorbed fraction may be resistant to atmospheric oxidation

 Soil Adsorption Coefficient (PCKOCWIN v1.66):
 Koc : 3206
 Log Koc: 3.506 

 Aqueous Base/Acid-Catalyzed Hydrolysis (25 deg C) [HYDROWIN v1.67]:
 Total Kb for pH > 8 at 25 deg C : 5.144E+003 L/mol-sec
 Kb Half-Life at pH 8: 2.246 minutes
 Kb Half-Life at pH 7: 22.456 minutes

 Bioaccumulation Estimates from Log Kow (BCFWIN v2.17):
 Log BCF from regression-based method = 3.126 (BCF = 1336)
 log Kow used: 4.97 (estimated)

 Volatilization from Water:
 Henry LC: 2.31E-005 atm-m3/mole (estimated by Bond SAR Method)
 Half-Life from Model River: 44.93 hours (1.872 days)
 Half-Life from Model Lake : 633.1 hours (26.38 days)

 Removal In Wastewater Treatment:
 Total removal: 76.83 percent
 Total biodegradation: 0.67 percent
 Total sludge adsorption: 75.92 percent
 Total to Air: 0.24 percent
 (using 10000 hr Bio P,A,S)

 Level III Fugacity Model:
 Mass Amount Half-Life Emissions
 (percent) (hr) (kg/hr)
 Air 0.569 18.9 1000 
 Water 11.3 900 1000 
 Soil 63.9 1.8e+003 1000 
 Sediment 24.2 8.1e+003 0 
 Persistence Time: 1.36e+003 hr