2,6-Dibromo-p-cresol C7H6Br2O 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) = 3.84

 Boiling Pt, Melting Pt, Vapor Pressure Estimations (MPBPWIN v1.42):
 Boiling Pt (deg C): 285.70 (Adapted Stein & Brown method)
 Melting Pt (deg C): 84.43 (Mean or Weighted MP)
 VP(mm Hg,25 deg C): 0.000401 (Modified Grain method)
 Subcooled liquid VP: 0.00149 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): 38.49
 log Kow used: 3.84 (estimated)
 no-melting pt equation used

 Water Sol Estimate from Fragments:
 Wat Sol (v1.01 est) = 1113.5 mg/L

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

 Henrys Law Constant (25 deg C) [HENRYWIN v3.10]:
 Bond Method : 9.82E-008 atm-m3/mole
 Group Method: 1.23E-007 atm-m3/mole
 Henrys LC [VP/WSol estimate using EPI values]: 3.645E-006 atm-m3/mole

 Log Octanol-Air Partition Coefficient (25 deg C) [KOAWIN v1.10]:
 Log Kow used: 3.84 (KowWin est)
 Log Kaw used: -5.396 (HenryWin est)
 Log Koa (KOAWIN v1.10 estimate): 9.236
 Log Koa (experimental database): None

 Probability of Rapid Biodegradation (BIOWIN v4.10):
 Biowin1 (Linear Model) : 0.5707
 Biowin2 (Non-Linear Model) : 0.0668
 Expert Survey Biodegradation Results:
 Biowin3 (Ultimate Survey Model): 2.3210 (weeks-months)
 Biowin4 (Primary Survey Model) : 3.1282 (weeks )
 MITI Biodegradation Probability:
 Biowin5 (MITI Linear Model) : 0.3767
 Biowin6 (MITI Non-Linear Model): 0.2476
 Anaerobic Biodegradation Probability:
 Biowin7 (Anaerobic Linear Model): 0.3542
 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): 0.199 Pa (0.00149 mm Hg)
 Log Koa (Koawin est ): 9.236
 Kp (particle/gas partition coef. (m3/ug)):
 Mackay model : 1.51E-005 
 Octanol/air (Koa) model: 0.000423 
 Fraction sorbed to airborne particulates (phi):
 Junge-Pankow model : 0.000545 
 Mackay model : 0.00121 
 Octanol/air (Koa) model: 0.0327 

 Atmospheric Oxidation (25 deg C) [AopWin v1.92]:
 Hydroxyl Radicals Reaction:
 OVERALL OH Rate Constant = 1.6647 E-12 cm3/molecule-sec
 Half-Life = 6.425 Days (12-hr day; 1.5E6 OH/cm3)
 Half-Life = 77.103 Hrs
 Ozone Reaction:
 No Ozone Reaction Estimation
 Reaction With Nitrate Radicals May Be Important!
 Fraction sorbed to airborne particulates (phi): 0.000876 (Junge,Mackay)
 Note: the sorbed fraction may be resistant to atmospheric oxidation

 Soil Adsorption Coefficient (PCKOCWIN v1.66):
 Koc : 1186
 Log Koc: 3.074 

 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 = 1.857 (BCF = 71.92)
 log Kow used: 3.84 (estimated)

 Volatilization from Water:
 Henry LC: 1.23E-007 atm-m3/mole (estimated by Group SAR Method)
 Half-Life from Model River: 7764 hours (323.5 days)
 Half-Life from Model Lake : 8.483E+004 hours (3535 days)

 Removal In Wastewater Treatment:
 Total removal: 23.33 percent
 Total biodegradation: 0.27 percent
 Total sludge adsorption: 23.06 percent
 Total to Air: 0.01 percent
 (using 10000 hr Bio P,A,S)

 Level III Fugacity Model:
 Mass Amount Half-Life Emissions
 (percent) (hr) (kg/hr)
 Air 0.594 154 1000 
 Water 13 900 1000 
 Soil 84.3 1.8e+003 1000 
 Sediment 2.1 8.1e+003 0 
 Persistence Time: 1.56e+003 hr