tert-butyl bromide C4H9Br 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) = 2.54

 Boiling Pt, Melting Pt, Vapor Pressure Estimations (MPBPWIN v1.42):
 Boiling Pt (deg C): 77.60 (Adapted Stein & Brown method)
 Melting Pt (deg C): -72.23 (Mean or Weighted MP)
 VP(mm Hg,25 deg C): 126 (Mean VP of Antoine & Grain methods)
 MP (exp database): -16.2 deg C
 BP (exp database): 73.3 deg C
 VP (exp database): 1.35E+02 mm Hg at 25 deg C

 Water Solubility Estimate from Log Kow (WSKOW v1.41):
 Water Solubility at 25 deg C (mg/L): 585.7
 log Kow used: 2.54 (estimated)
 no-melting pt equation used
 Water Sol (Exper. database match) = 600 mg/L (25 deg C)
 Exper. Ref: YAWS,CL & YANG,HC (1990)

 Water Sol Estimate from Fragments:
 Wat Sol (v1.01 est) = 1888 mg/L
 Wat Sol (Exper. database match) = 600.00
 Exper. Ref: YAWS,CL & YANG,HC (1990)

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

 Henrys Law Constant (25 deg C) [HENRYWIN v3.10]:
 Bond Method : 1.99E-002 atm-m3/mole
 Group Method: Incomplete
 Exper Database: 4.07E-02 atm-m3/mole
 Henrys LC [VP/WSol estimate using EPI values]: 3.879E-002 atm-m3/mole

 Log Octanol-Air Partition Coefficient (25 deg C) [KOAWIN v1.10]:
 Log Kow used: 2.54 (KowWin est)
 Log Kaw used: 0.221 (exp database)
 Log Koa (KOAWIN v1.10 estimate): 2.319
 Log Koa (experimental database): None

 Probability of Rapid Biodegradation (BIOWIN v4.10):
 Biowin1 (Linear Model) : 0.4522
 Biowin2 (Non-Linear Model) : 0.0060
 Expert Survey Biodegradation Results:
 Biowin3 (Ultimate Survey Model): 2.7132 (weeks-months)
 Biowin4 (Primary Survey Model) : 3.5320 (days-weeks )
 MITI Biodegradation Probability:
 Biowin5 (MITI Linear Model) : 0.4701
 Biowin6 (MITI Non-Linear Model): 0.1782
 Anaerobic Biodegradation Probability:
 Biowin7 (Anaerobic Linear Model): 0.6222
 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): 1.8E+004 Pa (135 mm Hg)
 Log Koa (Koawin est ): 2.319
 Kp (particle/gas partition coef. (m3/ug)):
 Mackay model : 1.67E-010 
 Octanol/air (Koa) model: 5.12E-011 
 Fraction sorbed to airborne particulates (phi):
 Junge-Pankow model : 6.02E-009 
 Mackay model : 1.33E-008 
 Octanol/air (Koa) model: 4.09E-009 

 Atmospheric Oxidation (25 deg C) [AopWin v1.92]:
 Hydroxyl Radicals Reaction:
 OVERALL OH Rate Constant = 0.4080 E-12 cm3/molecule-sec
 Half-Life = 26.216 Days (12-hr day; 1.5E6 OH/cm3)
 Ozone Reaction:
 No Ozone Reaction Estimation
 Fraction sorbed to airborne particulates (phi): 9.68E-009 (Junge,Mackay)
 Note: the sorbed fraction may be resistant to atmospheric oxidation

 Soil Adsorption Coefficient (PCKOCWIN v1.66):
 Koc : 48.64
 Log Koc: 1.687 

 Aqueous Base/Acid-Catalyzed Hydrolysis (25 deg C) [HYDROWIN v1.67]:
 Total Kb for pH > 8 at 25 deg C : 9.986E-008 L/mol-sec
 Kb Half-Life at pH 8: 2.199E+005 years 
 Kb Half-Life at pH 7: 2.199E+006 years 

 Bioaccumulation Estimates from Log Kow (BCFWIN v2.17):
 Log BCF from regression-based method = 1.254 (BCF = 17.96)
 log Kow used: 2.54 (estimated)

 Volatilization from Water:
 Henry LC: 0.0407 atm-m3/mole (Henry experimental database)
 Half-Life from Model River: 1.211 hours
 Half-Life from Model Lake : 111.4 hours (4.64 days)

 Removal In Wastewater Treatment:
 Total removal: 94.08 percent
 Total biodegradation: 0.02 percent
 Total sludge adsorption: 1.18 percent
 Total to Air: 92.87 percent
 (using 10000 hr Bio P,A,S)

 Level III Fugacity Model:
 Mass Amount Half-Life Emissions
 (percent) (hr) (kg/hr)
 Air 47 629 1000 
 Water 47.7 900 1000 
 Soil 4.9 1.8e+003 1000 
 Sediment 0.421 8.1e+003 0 
 Persistence Time: 165 hr