mequinol C7H8O2 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) = 1.59
 Log Kow (Exper. database match) = 1.58
 Exper. Ref: Hansch,C et al. (1995)

 Boiling Pt, Melting Pt, Vapor Pressure Estimations (MPBPWIN v1.42):
 Boiling Pt (deg C): 211.43 (Adapted Stein & Brown method)
 Melting Pt (deg C): 25.15 (Mean or Weighted MP)
 VP(mm Hg,25 deg C): 0.0083 (Modified Grain method)
 MP (exp database): 57 deg C
 BP (exp database): 243 deg C
 Subcooled liquid VP: 0.0164 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): 1.648e+004
 log Kow used: 1.58 (expkow database)
 no-melting pt equation used
 Water Sol (Exper. database match) = 4e+004 mg/L (25 deg C)
 Exper. Ref: EPA

 Water Sol Estimate from Fragments:
 Wat Sol (v1.01 est) = 28462 mg/L
 Wat Sol (Exper. database match) = 40000.00
 Exper. Ref: EPA

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

 Henrys Law Constant (25 deg C) [HENRYWIN v3.10]:
 Bond Method : 3.32E-008 atm-m3/mole
 Group Method: 5.35E-007 atm-m3/mole
 Henrys LC [VP/WSol estimate using EPI values]: 8.227E-008 atm-m3/mole

 Log Octanol-Air Partition Coefficient (25 deg C) [KOAWIN v1.10]:
 Log Kow used: 1.58 (exp database)
 Log Kaw used: -5.867 (HenryWin est)
 Log Koa (KOAWIN v1.10 estimate): 7.447
 Log Koa (experimental database): None

 Probability of Rapid Biodegradation (BIOWIN v4.10):
 Biowin1 (Linear Model) : 0.9362
 Biowin2 (Non-Linear Model) : 0.9879
 Expert Survey Biodegradation Results:
 Biowin3 (Ultimate Survey Model): 2.9231 (weeks )
 Biowin4 (Primary Survey Model) : 3.7854 (days )
 MITI Biodegradation Probability:
 Biowin5 (MITI Linear Model) : 0.6356
 Biowin6 (MITI Non-Linear Model): 0.7778
 Anaerobic Biodegradation Probability:
 Biowin7 (Anaerobic Linear Model): 0.6335
 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): 2.19 Pa (0.0164 mm Hg)
 Log Koa (Koawin est ): 7.447
 Kp (particle/gas partition coef. (m3/ug)):
 Mackay model : 1.37E-006 
 Octanol/air (Koa) model: 6.87E-006 
 Fraction sorbed to airborne particulates (phi):
 Junge-Pankow model : 4.96E-005 
 Mackay model : 0.00011 
 Octanol/air (Koa) model: 0.000549 

 Atmospheric Oxidation (25 deg C) [AopWin v1.92]:
 Hydroxyl Radicals Reaction:
 OVERALL OH Rate Constant = 29.7980 E-12 cm3/molecule-sec
 Half-Life = 0.359 Days (12-hr day; 1.5E6 OH/cm3)
 Half-Life = 4.307 Hrs
 Ozone Reaction:
 No Ozone Reaction Estimation
 Reaction With Nitrate Radicals May Be Important!
 Fraction sorbed to airborne particulates (phi): 7.96E-005 (Junge,Mackay)
 Note: the sorbed fraction may be resistant to atmospheric oxidation

 Soil Adsorption Coefficient (PCKOCWIN v1.66):
 Koc : 190.8
 Log Koc: 2.280 

 Aqueous Base/Acid-Catalyzed Hydrolysis (25 deg C) [HYDROWIN v1.67]:
 Rate constants can NOT be estimated for this structure!

 Bioaccumulation Estimates from Log Kow (BCFWIN v2.17):
 Log BCF from regression-based method = 0.517 (BCF = 3.285)
 log Kow used: 1.58 (expkow database)

 Volatilization from Water:
 Henry LC: 5.35E-007 atm-m3/mole (estimated by Group SAR Method)
 Half-Life from Model River: 1220 hours (50.85 days)
 Half-Life from Model Lake : 1.341E+004 hours (558.6 days)

 Removal In Wastewater Treatment:
 Total removal: 2.03 percent
 Total biodegradation: 0.09 percent
 Total sludge adsorption: 1.90 percent
 Total to Air: 0.03 percent
 (using 10000 hr Bio P,A,S)

 Level III Fugacity Model:
 Mass Amount Half-Life Emissions
 (percent) (hr) (kg/hr)
 Air 0.918 8.62 1000 
 Water 36.6 360 1000 
 Soil 62.3 720 1000 
 Sediment 0.0911 3.24e+003 0 
 Persistence Time: 400 hr