2,2-Dimethylbutane

Predicted data is generated using the ACD/Labs Percepta Platform - PhysChem Module, version: 14.00

Predicted data is generated using the US Environmental Protection Agency�s EPISuite™

                        
 Log Octanol-Water Partition Coef (SRC):
    Log Kow (KOWWIN v1.67 estimate) =  3.18
    Log Kow (Exper. database match) =  3.82
       Exper. Ref:  Hansch,C et al. (1995)

 Boiling Pt, Melting Pt, Vapor Pressure Estimations (MPBPWIN v1.42):
    Boiling Pt (deg C):  46.03  (Adapted Stein & Brown method)
    Melting Pt (deg C):  -100.07  (Mean or Weighted MP)
    VP(mm Hg,25 deg C):  310  (Mean VP of Antoine & Grain methods)
    MP  (exp database):  -99 deg C
    BP  (exp database):  49.7 deg C
    VP  (exp database):  3.19E+02 mm Hg at 25 deg C

 Water Solubility Estimate from Log Kow (WSKOW v1.41):
    Water Solubility at 25 deg C (mg/L):  20.17
       log Kow used: 3.82 (expkow database)
       no-melting pt equation used
     Water Sol (Exper. database match) =  18.4 mg/L (25 deg C)
        Exper. Ref:  YALKOWSKY,SH & DANNENFELSER,RM (1992)

 Water Sol Estimate from Fragments:
    Wat Sol (v1.01 est) =  19.225 mg/L
    Wat Sol (Exper. database match) =  18.40
       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 :   1.71E+000  atm-m3/mole
   Group Method:   2.03E+000  atm-m3/mole
   Exper Database: 1.52E+00  atm-m3/mole
 Henrys LC [VP/WSol estimate using EPI values]:  1.743E+000 atm-m3/mole

 Log Octanol-Air Partition Coefficient (25 deg C) [KOAWIN v1.10]:
  Log Kow used:  3.82  (exp database)
  Log Kaw used:  1.793  (exp database)
      Log Koa (KOAWIN v1.10 estimate):  2.027
      Log Koa (experimental database):  None

 Probability of Rapid Biodegradation (BIOWIN v4.10):
   Biowin1 (Linear Model)         :   0.5226
   Biowin2 (Non-Linear Model)     :   0.5154
 Expert Survey Biodegradation Results:
   Biowin3 (Ultimate Survey Model):   2.7966  (weeks       )
   Biowin4 (Primary Survey Model) :   3.5700  (days-weeks  )
 MITI Biodegradation Probability:
   Biowin5 (MITI Linear Model)    :   0.5744
   Biowin6 (MITI Non-Linear Model):   0.7199
 Anaerobic Biodegradation Probability:
   Biowin7 (Anaerobic Linear Model):  0.2096
 Ready Biodegradability Prediction:   YES

 Hydrocarbon Biodegradation (BioHCwin v1.01):
     LOG BioHC Half-Life (days) :   0.8432
     BioHC Half-Life (days)     :   6.9687

 Sorption to aerosols (25 Dec C)[AEROWIN v1.00]:
  Vapor pressure (liquid/subcooled):  4.25E+004 Pa (319 mm Hg)
  Log Koa (Koawin est  ): 2.027
   Kp (particle/gas partition coef. (m3/ug)):
       Mackay model           :  7.05E-011 
       Octanol/air (Koa) model:  2.61E-011 
   Fraction sorbed to airborne particulates (phi):
       Junge-Pankow model     :  2.55E-009 
       Mackay model           :  5.64E-009 
       Octanol/air (Koa) model:  2.09E-009 

 Atmospheric Oxidation (25 deg C) [AopWin v1.92]:
   Hydroxyl Radicals Reaction:
      OVERALL OH Rate Constant =   1.8179 E-12 cm3/molecule-sec
      Half-Life =     5.884 Days (12-hr day; 1.5E6 OH/cm3)
      Half-Life =    70.603 Hrs
   Ozone Reaction:
      No Ozone Reaction Estimation
   Fraction sorbed to airborne particulates (phi): 4.1E-009 (Junge,Mackay)
    Note: the sorbed fraction may be resistant to atmospheric oxidation

 Soil Adsorption Coefficient (PCKOCWIN v1.66):
      Koc    :  96.63
      Log Koc:  1.985 

 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 = 2.241 (BCF = 174.3)
       log Kow used: 3.82 (expkow database)

 Volatilization from Water:
    Henry LC:  1.52 atm-m3/mole  (Henry experimental database)
    Half-Life from Model River:     0.9477  hours   (56.86 min)
    Half-Life from Model Lake :      88.18  hours   (3.674 days)

 Removal In Wastewater Treatment (recommended maximum 95%):
    Total removal:              99.85  percent
    Total biodegradation:        0.05  percent
    Total sludge adsorption:    12.62  percent
    Total to Air:               87.18  percent
      (using 10000 hr Bio P,A,S)

 Level III Fugacity Model:
           Mass Amount    Half-Life    Emissions
            (percent)        (hr)       (kg/hr)
   Air       41.5            111          1000       
   Water     50.7            360          1000       
   Soil      3.43            720          1000       
   Sediment  4.39            3.24e+003    0          
     Persistence Time: 121 hr