2,3-dimethylbutene C6H12 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) = 3.13

 Boiling Pt, Melting Pt, Vapor Pressure Estimations (MPBPWIN v1.42):
 Boiling Pt (deg C): 47.29 (Adapted Stein & Brown method)
 Melting Pt (deg C): -116.27 (Mean or Weighted MP)
 VP(mm Hg,25 deg C): 248 (Mean VP of Antoine & Grain methods)
 MP (exp database): -157.3 deg C
 BP (exp database): 55.6 deg C
 VP (exp database): 2.52E+02 mm Hg at 25 deg C

 Water Solubility Estimate from Log Kow (WSKOW v1.41):
 Water Solubility at 25 deg C (mg/L): 78.47
 log Kow used: 3.13 (estimated)
 no-melting pt equation used

 Water Sol Estimate from Fragments:
 Wat Sol (v1.01 est) = 96.847 mg/L

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

 Henrys Law Constant (25 deg C) [HENRYWIN v3.10]:
 Bond Method : 4.23E-001 atm-m3/mole
 Group Method: Incomplete
 Henrys LC [VP/WSol estimate using EPI values]: 3.500E-001 atm-m3/mole

 Log Octanol-Air Partition Coefficient (25 deg C) [KOAWIN v1.10]:
 Log Kow used: 3.13 (KowWin est)
 Log Kaw used: 1.238 (HenryWin est)
 Log Koa (KOAWIN v1.10 estimate): 1.892
 Log Koa (experimental database): None

 Probability of Rapid Biodegradation (BIOWIN v4.10):
 Biowin1 (Linear Model) : 0.7075
 Biowin2 (Non-Linear Model) : 0.8598
 Expert Survey Biodegradation Results:
 Biowin3 (Ultimate Survey Model): 3.0132 (weeks )
 Biowin4 (Primary Survey Model) : 3.7263 (days-weeks )
 MITI Biodegradation Probability:
 Biowin5 (MITI Linear Model) : 0.4247
 Biowin6 (MITI Non-Linear Model): 0.5279
 Anaerobic Biodegradation Probability:
 Biowin7 (Anaerobic Linear Model): 0.2845
 Ready Biodegradability Prediction: NO

 Hydrocarbon Biodegradation (BioHCwin v1.01):
 LOG BioHC Half-Life (days) : 0.4768
 BioHC Half-Life (days) : 2.9980

 Sorption to aerosols (25 Dec C)[AEROWIN v1.00]:
 Vapor pressure (liquid/subcooled): 3.36E+004 Pa (252 mm Hg)
 Log Koa (Koawin est ): 1.892
 Kp (particle/gas partition coef. (m3/ug)):
 Mackay model : 8.93E-011 
 Octanol/air (Koa) model: 1.91E-011 
 Fraction sorbed to airborne particulates (phi):
 Junge-Pankow model : 3.23E-009 
 Mackay model : 7.14E-009 
 Octanol/air (Koa) model: 1.53E-009 

 Atmospheric Oxidation (25 deg C) [AopWin v1.92]:
 Hydroxyl Radicals Reaction:
 OVERALL OH Rate Constant = 53.8106 E-12 cm3/molecule-sec
 Half-Life = 0.199 Days (12-hr day; 1.5E6 OH/cm3)
 Half-Life = 2.385 Hrs
 Ozone Reaction:
 OVERALL Ozone Rate Constant = 1.200000 E-17 cm3/molecule-sec
 Half-Life = 0.955 Days (at 7E11 mol/cm3)
 Half-Life = 22.920 Hrs
 Fraction sorbed to airborne particulates (phi): 5.18E-009 (Junge,Mackay)
 Note: the sorbed fraction may be resistant to atmospheric oxidation

 Soil Adsorption Coefficient (PCKOCWIN v1.66):
 Koc : 106.8
 Log Koc: 2.029 

 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 = 1.713 (BCF = 51.69)
 log Kow used: 3.13 (estimated)

 Volatilization from Water:
 Henry LC: 0.423 atm-m3/mole (estimated by Bond SAR Method)
 Half-Life from Model River: 0.9374 hours (56.24 min)
 Half-Life from Model Lake : 87.15 hours (3.631 days)

 Removal In Wastewater Treatment (recommended maximum 95%):
 Total removal: 99.40 percent
 Total biodegradation: 0.03 percent
 Total sludge adsorption: 3.29 percent
 Total to Air: 96.09 percent
 (using 10000 hr Bio P,A,S)

 Level III Fugacity Model:
 Mass Amount Half-Life Emissions
 (percent) (hr) (kg/hr)
 Air 6.25 3.95 1000 
 Water 87.2 360 1000 
 Soil 4.63 720 1000 
 Sediment 1.86 3.24e+003 0 
 Persistence Time: 70.4 hr