4,4-Dimethyl-2-pentyne

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) =  2.95

 Boiling Pt, Melting Pt, Vapor Pressure Estimations (MPBPWIN v1.42):
    Boiling Pt (deg C):  89.48  (Adapted Stein & Brown method)
    Melting Pt (deg C):  -28.70  (Mean or Weighted MP)
    VP(mm Hg,25 deg C):  66.2  (Mean VP of Antoine & Grain methods)

 Water Solubility Estimate from Log Kow (WSKOW v1.41):
    Water Solubility at 25 deg C (mg/L):  104.8
       log Kow used: 2.95 (estimated)
       no-melting pt equation used

 Water Sol Estimate from Fragments:
    Wat Sol (v1.01 est) =  636.76 mg/L

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

 Henrys Law Constant (25 deg C) [HENRYWIN v3.10]:
   Bond Method :   2.52E-002  atm-m3/mole
   Group Method:   Incomplete
 Henrys LC [VP/WSol estimate using EPI values]:  7.993E-002 atm-m3/mole

 Log Octanol-Air Partition Coefficient (25 deg C) [KOAWIN v1.10]:
  Log Kow used:  2.95  (KowWin est)
  Log Kaw used:  0.013  (HenryWin est)
      Log Koa (KOAWIN v1.10 estimate):  2.937
      Log Koa (experimental database):  None

 Probability of Rapid Biodegradation (BIOWIN v4.10):
   Biowin1 (Linear Model)         :   0.5178
   Biowin2 (Non-Linear Model)     :   0.4800
 Expert Survey Biodegradation Results:
   Biowin3 (Ultimate Survey Model):   2.7745  (weeks       )
   Biowin4 (Primary Survey Model) :   3.5555  (days-weeks  )
 MITI Biodegradation Probability:
   Biowin5 (MITI Linear Model)    :   0.4953
   Biowin6 (MITI Non-Linear Model):   0.5562
 Anaerobic Biodegradation Probability:
   Biowin7 (Anaerobic Linear Model):  0.1836
 Ready Biodegradability Prediction:   NO

 Hydrocarbon Biodegradation (BioHCwin v1.01):
     LOG BioHC Half-Life (days) :   0.7768
     BioHC Half-Life (days)     :   5.9807

 Sorption to aerosols (25 Dec C)[AEROWIN v1.00]:
  Vapor pressure (liquid/subcooled):  8.48E+003 Pa (63.6 mm Hg)
  Log Koa (Koawin est  ): 2.937
   Kp (particle/gas partition coef. (m3/ug)):
       Mackay model           :  3.54E-010 
       Octanol/air (Koa) model:  2.12E-010 
   Fraction sorbed to airborne particulates (phi):
       Junge-Pankow model     :  1.28E-008 
       Mackay model           :  2.83E-008 
       Octanol/air (Koa) model:  1.7E-008 

 Atmospheric Oxidation (25 deg C) [AopWin v1.92]:
   Hydroxyl Radicals Reaction:
      OVERALL OH Rate Constant =  27.6378 E-12 cm3/molecule-sec
      Half-Life =     0.387 Days (12-hr day; 1.5E6 OH/cm3)
      Half-Life =     4.644 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): 2.05E-008 (Junge,Mackay)
    Note: the sorbed fraction may be resistant to atmospheric oxidation

 Soil Adsorption Coefficient (PCKOCWIN v1.66):
      Koc    :  178.2
      Log Koc:  2.251 

 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 = 1.574 (BCF = 37.45)
       log Kow used: 2.95 (estimated)

 Volatilization from Water:
    Henry LC:  0.0252 atm-m3/mole  (estimated by Bond SAR Method)
    Half-Life from Model River:      1.023  hours
    Half-Life from Model Lake :      93.39  hours   (3.891 days)

 Removal In Wastewater Treatment:
    Total removal:              90.88  percent
    Total biodegradation:        0.03  percent
    Total sludge adsorption:     2.55  percent
    Total to Air:               88.29  percent
      (using 10000 hr Bio P,A,S)

 Level III Fugacity Model:
           Mass Amount    Half-Life    Emissions
            (percent)        (hr)       (kg/hr)
   Air       9.38            9.28         1000       
   Water     62              360          1000       
   Soil      27.7            720          1000       
   Sediment  0.944           3.24e+003    0          
     Persistence Time: 99.8 hr