1,4-Dibromobutane C4H8Br2 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) = 2.99

 Boiling Pt, Melting Pt, Vapor Pressure Estimations (MPBPWIN v1.42):
 Boiling Pt (deg C): 174.88 (Adapted Stein & Brown method)
 Melting Pt (deg C): -15.14 (Mean or Weighted MP)
 VP(mm Hg,25 deg C): 0.597 (Mean VP of Antoine & Grain methods)
 MP (exp database): -16.5 deg C
 BP (exp database): 197 deg C
 VP (exp database): 6.16E-01 mm Hg at 25 deg C

 Water Solubility Estimate from Log Kow (WSKOW v1.41):
 Water Solubility at 25 deg C (mg/L): 100.6
 log Kow used: 2.99 (estimated)
 no-melting pt equation used
 Water Sol (Exper. database match) = 350 mg/L (25 deg C)
 Exper. Ref: ALBANESE,V ET AL. (1987)

 Water Sol Estimate from Fragments:
 Wat Sol (v1.01 est) = 198.51 mg/L
 Wat Sol (Exper. database match) = 350.00
 Exper. Ref: ALBANESE,V ET AL. (1987)

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

 Henrys Law Constant (25 deg C) [HENRYWIN v3.10]:
 Bond Method : 2.29E-003 atm-m3/mole
 Group Method: 3.08E-004 atm-m3/mole
 Henrys LC [VP/WSol estimate using EPI values]: 1.686E-003 atm-m3/mole

 Log Octanol-Air Partition Coefficient (25 deg C) [KOAWIN v1.10]:
 Log Kow used: 2.99 (KowWin est)
 Log Kaw used: -1.029 (HenryWin est)
 Log Koa (KOAWIN v1.10 estimate): 4.019
 Log Koa (experimental database): None

 Probability of Rapid Biodegradation (BIOWIN v4.10):
 Biowin1 (Linear Model) : 0.5524
 Biowin2 (Non-Linear Model) : 0.0001
 Expert Survey Biodegradation Results:
 Biowin3 (Ultimate Survey Model): 2.7799 (weeks )
 Biowin4 (Primary Survey Model) : 3.6070 (days-weeks )
 MITI Biodegradation Probability:
 Biowin5 (MITI Linear Model) : 0.4610
 Biowin6 (MITI Non-Linear Model): 0.0430
 Anaerobic Biodegradation Probability:
 Biowin7 (Anaerobic Linear Model): 1.6582
 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): 82.1 Pa (0.616 mm Hg)
 Log Koa (Koawin est ): 4.019
 Kp (particle/gas partition coef. (m3/ug)):
 Mackay model : 3.65E-008 
 Octanol/air (Koa) model: 2.56E-009 
 Fraction sorbed to airborne particulates (phi):
 Junge-Pankow model : 1.32E-006 
 Mackay model : 2.92E-006 
 Octanol/air (Koa) model: 2.05E-007 

 Atmospheric Oxidation (25 deg C) [AopWin v1.92]:
 Hydroxyl Radicals Reaction:
 OVERALL OH Rate Constant = 1.7003 E-12 cm3/molecule-sec
 Half-Life = 6.291 Days (12-hr day; 1.5E6 OH/cm3)
 Half-Life = 75.490 Hrs
 Ozone Reaction:
 No Ozone Reaction Estimation
 Fraction sorbed to airborne particulates (phi): 2.12E-006 (Junge,Mackay)
 Note: the sorbed fraction may be resistant to atmospheric oxidation

 Soil Adsorption Coefficient (PCKOCWIN v1.66):
 Koc : 149
 Log Koc: 2.173 

 Aqueous Base/Acid-Catalyzed Hydrolysis (25 deg C) [HYDROWIN v1.67]:
 Total Kb for pH > 8 at 25 deg C : 1.539E-008 L/mol-sec
 Kb Half-Life at pH 8: 1.427E+006 years 
 Kb Half-Life at pH 7: 1.427E+007 years 

 Bioaccumulation Estimates from Log Kow (BCFWIN v2.17):
 Log BCF from regression-based method = 1.604 (BCF = 40.22)
 log Kow used: 2.99 (estimated)

 Volatilization from Water:
 Henry LC: 0.000308 atm-m3/mole (estimated by Group SAR Method)
 Half-Life from Model River: 4.293 hours
 Half-Life from Model Lake : 170 hours (7.085 days)

 Removal In Wastewater Treatment:
 Total removal: 17.18 percent
 Total biodegradation: 0.11 percent
 Total sludge adsorption: 5.10 percent
 Total to Air: 11.97 percent
 (using 10000 hr Bio P,A,S)

 Level III Fugacity Model:
 Mass Amount Half-Life Emissions
 (percent) (hr) (kg/hr)
 Air 7.91 151 1000 
 Water 19.5 360 1000 
 Soil 72.3 720 1000 
 Sediment 0.32 3.24e+003 0 
 Persistence Time: 413 hr