1-Bromo-2-methylpropane 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) = 2.58

 Boiling Pt, Melting Pt, Vapor Pressure Estimations (MPBPWIN v1.42):
 Boiling Pt (deg C): 87.38 (Adapted Stein & Brown method)
 Melting Pt (deg C): -78.08 (Mean or Weighted MP)
 VP(mm Hg,25 deg C): 62 (Mean VP of Antoine & Grain methods)
 MP (exp database): -119 deg C
 BP (exp database): 91.1 deg C

 Water Solubility Estimate from Log Kow (WSKOW v1.41):
 Water Solubility at 25 deg C (mg/L): 543.9
 log Kow used: 2.58 (estimated)
 no-melting pt equation used
 Water Sol (Exper. database match) = 507 mg/L (18 deg C)
 Exper. Ref: YALKOWSKY,SH & DANNENFELSER,RM (1992)

 Water Sol Estimate from Fragments:
 Wat Sol (v1.01 est) = 1285.6 mg/L
 Wat Sol (Exper. database match) = 507.00
 Exper. Ref: YALKOWSKY,SH & DANNENFELSER,RM (1992)

 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: 1.94E-002 atm-m3/mole
 Henrys LC [VP/WSol estimate using EPI values]: 2.055E-002 atm-m3/mole

 Log Octanol-Air Partition Coefficient (25 deg C) [KOAWIN v1.10]:
 Log Kow used: 2.58 (KowWin est)
 Log Kaw used: -0.090 (HenryWin est)
 Log Koa (KOAWIN v1.10 estimate): 2.670
 Log Koa (experimental database): None

 Probability of Rapid Biodegradation (BIOWIN v4.10):
 Biowin1 (Linear Model) : 0.6361
 Biowin2 (Non-Linear Model) : 0.0329
 Expert Survey Biodegradation Results:
 Biowin3 (Ultimate Survey Model): 2.9253 (weeks )
 Biowin4 (Primary Survey Model) : 3.6854 (days-weeks )
 MITI Biodegradation Probability:
 Biowin5 (MITI Linear Model) : 0.4008
 Biowin6 (MITI Non-Linear Model): 0.1656
 Anaerobic Biodegradation Probability:
 Biowin7 (Anaerobic Linear Model): 0.8962
 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): 7.93E+003 Pa (59.5 mm Hg)
 Log Koa (Koawin est ): 2.670
 Kp (particle/gas partition coef. (m3/ug)):
 Mackay model : 3.78E-010 
 Octanol/air (Koa) model: 1.15E-010 
 Fraction sorbed to airborne particulates (phi):
 Junge-Pankow model : 1.37E-008 
 Mackay model : 3.03E-008 
 Octanol/air (Koa) model: 9.19E-009 

 Atmospheric Oxidation (25 deg C) [AopWin v1.92]:
 Hydroxyl Radicals Reaction:
 OVERALL OH Rate Constant = 1.5486 E-12 cm3/molecule-sec
 Half-Life = 6.907 Days (12-hr day; 1.5E6 OH/cm3)
 Half-Life = 82.881 Hrs
 Ozone Reaction:
 No Ozone Reaction Estimation
 Fraction sorbed to airborne particulates (phi): 2.2E-008 (Junge,Mackay)
 Note: the sorbed fraction may be resistant to atmospheric oxidation

 Soil Adsorption Coefficient (PCKOCWIN v1.66):
 Koc : 67.7
 Log Koc: 1.831 

 Aqueous Base/Acid-Catalyzed Hydrolysis (25 deg C) [HYDROWIN v1.67]:
 Total Kb for pH > 8 at 25 deg C : 1.203E-010 L/mol-sec
 Kb Half-Life at pH 8: 1.826E+008 years 
 Kb Half-Life at pH 7: 1.826E+009 years 

 Bioaccumulation Estimates from Log Kow (BCFWIN v2.17):
 Log BCF from regression-based method = 1.283 (BCF = 19.2)
 log Kow used: 2.58 (estimated)

 Volatilization from Water:
 Henry LC: 0.0194 atm-m3/mole (estimated by Group SAR Method)
 Half-Life from Model River: 1.23 hours
 Half-Life from Model Lake : 111.6 hours (4.649 days)

 Removal In Wastewater Treatment:
 Total removal: 88.39 percent
 Total biodegradation: 0.03 percent
 Total sludge adsorption: 1.38 percent
 Total to Air: 86.98 percent
 (using 10000 hr Bio P,A,S)

 Level III Fugacity Model:
 Mass Amount Half-Life Emissions
 (percent) (hr) (kg/hr)
 Air 41.6 166 1000 
 Water 45.6 360 1000 
 Soil 12.4 720 1000 
 Sediment 0.362 3.24e+003 0 
 Persistence Time: 136 hr