Isobutylethyne

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) =  2.44

 Boiling Pt, Melting Pt, Vapor Pressure Estimations (MPBPWIN v1.42):
    Boiling Pt (deg C):  65.19  (Adapted Stein & Brown method)
    Melting Pt (deg C):  -79.70  (Mean or Weighted MP)
    VP(mm Hg,25 deg C):  201  (Mean VP of Antoine & Grain methods)
    MP  (exp database):  -104.6 deg C
    BP  (exp database):  61.2 deg C

 Water Solubility Estimate from Log Kow (WSKOW v1.41):
    Water Solubility at 25 deg C (mg/L):  308.6
       log Kow used: 2.44 (estimated)
       no-melting pt equation used

 Water Sol Estimate from Fragments:
    Wat Sol (v1.01 est) =  776.01 mg/L

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

 Henrys Law Constant (25 deg C) [HENRYWIN v3.10]:
   Bond Method :   3.76E-002  atm-m3/mole
   Group Method:   5.23E-002  atm-m3/mole
 Henrys LC [VP/WSol estimate using EPI values]:  7.040E-002 atm-m3/mole

 Log Octanol-Air Partition Coefficient (25 deg C) [KOAWIN v1.10]:
  Log Kow used:  2.44  (KowWin est)
  Log Kaw used:  0.187  (HenryWin est)
      Log Koa (KOAWIN v1.10 estimate):  2.253
      Log Koa (experimental database):  None

 Probability of Rapid Biodegradation (BIOWIN v4.10):
   Biowin1 (Linear Model)         :   0.7084
   Biowin2 (Non-Linear Model)     :   0.8632
 Expert Survey Biodegradation Results:
   Biowin3 (Ultimate Survey Model):   3.0176  (weeks       )
   Biowin4 (Primary Survey Model) :   3.7292  (days-weeks  )
 MITI Biodegradation Probability:
   Biowin5 (MITI Linear Model)    :   0.4673
   Biowin6 (MITI Non-Linear Model):   0.6278
 Anaerobic Biodegradation Probability:
   Biowin7 (Anaerobic Linear Model):  0.5371
 Ready Biodegradability Prediction:   NO

 Hydrocarbon Biodegradation (BioHCwin v1.01):
     LOG BioHC Half-Life (days) :   0.6534
     BioHC Half-Life (days)     :   4.5018

 Sorption to aerosols (25 Dec C)[AEROWIN v1.00]:
  Vapor pressure (liquid/subcooled):  2.63E+004 Pa (197 mm Hg)
  Log Koa (Koawin est  ): 2.253
   Kp (particle/gas partition coef. (m3/ug)):
       Mackay model           :  1.14E-010 
       Octanol/air (Koa) model:  4.4E-011 
   Fraction sorbed to airborne particulates (phi):
       Junge-Pankow model     :  4.13E-009 
       Mackay model           :  9.14E-009 
       Octanol/air (Koa) model:  3.52E-009 

 Atmospheric Oxidation (25 deg C) [AopWin v1.92]:
   Hydroxyl Radicals Reaction:
      OVERALL OH Rate Constant =  10.8696 E-12 cm3/molecule-sec
      Half-Life =     0.984 Days (12-hr day; 1.5E6 OH/cm3)
      Half-Life =    11.808 Hrs
   Ozone Reaction:
      OVERALL Ozone Rate Constant =     0.003000 E-17 cm3/molecule-sec
      Half-Life =   382.000 Days (at 7E11 mol/cm3)
   Fraction sorbed to airborne particulates (phi): 6.63E-009 (Junge,Mackay)
    Note: the sorbed fraction may be resistant to atmospheric oxidation

 Soil Adsorption Coefficient (PCKOCWIN v1.66):
      Koc    :  124.9
      Log Koc:  2.096 

 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 = 1.181 (BCF = 15.17)
       log Kow used: 2.44 (estimated)

 Volatilization from Water:
    Henry LC:  0.0523 atm-m3/mole  (estimated by Group SAR Method)
    Half-Life from Model River:      0.935  hours   (56.10 min)
    Half-Life from Model Lake :       86.2  hours   (3.592 days)

 Removal In Wastewater Treatment (recommended maximum 95%):
    Total removal:              95.32  percent
    Total biodegradation:        0.02  percent
    Total sludge adsorption:     0.98  percent
    Total to Air:               94.31  percent
      (using 10000 hr Bio P,A,S)

 Level III Fugacity Model:
           Mass Amount    Half-Life    Emissions
            (percent)        (hr)       (kg/hr)
   Air       23.5            23.6         1000       
   Water     70.1            360          1000       
   Soil      6.01            720          1000       
   Sediment  0.444           3.24e+003    0          
     Persistence Time: 88 hr