1,2,5,5-Tetramethyl-1,3-cyclopentadiene

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) =  4.22

 Boiling Pt, Melting Pt, Vapor Pressure Estimations (MPBPWIN v1.42):
    Boiling Pt (deg C):  140.82  (Adapted Stein & Brown method)
    Melting Pt (deg C):  -26.02  (Mean or Weighted MP)
    VP(mm Hg,25 deg C):  7.68  (Mean VP of Antoine & Grain methods)

 Water Solubility Estimate from Log Kow (WSKOW v1.41):
    Water Solubility at 25 deg C (mg/L):  7.118
       log Kow used: 4.22 (estimated)
       no-melting pt equation used

 Water Sol Estimate from Fragments:
    Wat Sol (v1.01 est) =  103.63 mg/L

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

 Henrys Law Constant (25 deg C) [HENRYWIN v3.10]:
   Bond Method :   2.75E-001  atm-m3/mole
   Group Method:   Incomplete
 Henrys LC [VP/WSol estimate using EPI values]:  1.735E-001 atm-m3/mole

 Log Octanol-Air Partition Coefficient (25 deg C) [KOAWIN v1.10]:
  Log Kow used:  4.22  (KowWin est)
  Log Kaw used:  1.051  (HenryWin est)
      Log Koa (KOAWIN v1.10 estimate):  3.169
      Log Koa (experimental database):  None

 Probability of Rapid Biodegradation (BIOWIN v4.10):
   Biowin1 (Linear Model)         :   0.5054
   Biowin2 (Non-Linear Model)     :   0.3894
 Expert Survey Biodegradation Results:
   Biowin3 (Ultimate Survey Model):   2.7170  (weeks-months)
   Biowin4 (Primary Survey Model) :   3.5180  (days-weeks  )
 MITI Biodegradation Probability:
   Biowin5 (MITI Linear Model)    :   0.4302
   Biowin6 (MITI Non-Linear Model):   0.3849
 Anaerobic Biodegradation Probability:
   Biowin7 (Anaerobic Linear Model):  0.0365
 Ready Biodegradability Prediction:   NO

 Hydrocarbon Biodegradation (BioHCwin v1.01):
     LOG BioHC Half-Life (days) :   0.7635
     BioHC Half-Life (days)     :   5.8006

 Sorption to aerosols (25 Dec C)[AEROWIN v1.00]:
  Vapor pressure (liquid/subcooled):  945 Pa (7.09 mm Hg)
  Log Koa (Koawin est  ): 3.169
   Kp (particle/gas partition coef. (m3/ug)):
       Mackay model           :  3.17E-009 
       Octanol/air (Koa) model:  3.62E-010 
   Fraction sorbed to airborne particulates (phi):
       Junge-Pankow model     :  1.15E-007 
       Mackay model           :  2.54E-007 
       Octanol/air (Koa) model:  2.9E-008 

 Atmospheric Oxidation (25 deg C) [AopWin v1.92]:
   Hydroxyl Radicals Reaction:
      OVERALL OH Rate Constant = 260.6066 E-12 cm3/molecule-sec
      Half-Life =     0.041 Days (12-hr day; 1.5E6 OH/cm3)
      Half-Life =    29.551 Min
   Ozone Reaction:
      OVERALL Ozone Rate Constant =    34.222500 E-17 cm3/molecule-sec
      Half-Life =     0.033 Days (at 7E11 mol/cm3)
      Half-Life =     48.221 Min
   Fraction sorbed to airborne particulates (phi): 1.84E-007 (Junge,Mackay)
    Note: the sorbed fraction may be resistant to atmospheric oxidation

 Soil Adsorption Coefficient (PCKOCWIN v1.66):
      Koc    :  590
      Log Koc:  2.771 

 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 = 2.550 (BCF = 354.4)
       log Kow used: 4.22 (estimated)

 Volatilization from Water:
    Henry LC:  0.275 atm-m3/mole  (estimated by Bond SAR Method)
    Half-Life from Model River:       1.13  hours
    Half-Life from Model Lake :        105  hours   (4.376 days)

 Removal In Wastewater Treatment (recommended maximum 95%):
    Total removal:              99.24  percent
    Total biodegradation:        0.08  percent
    Total sludge adsorption:    24.09  percent
    Total to Air:               75.07  percent
      (using 10000 hr Bio P,A,S)

 Level III Fugacity Model:
           Mass Amount    Half-Life    Emissions
            (percent)        (hr)       (kg/hr)
   Air       0.343           0.443        1000       
   Water     50              900          1000       
   Soil      30              1.8e+003     1000       
   Sediment  19.7            8.1e+003     0          
     Persistence Time: 156 hr