piperazine-1,4-diylbis[(3,4-dimethylphenyl)methanone]

Predicted data is generated using the ACD/Labs’ ACD/PhysChem Suite, for more information see their website.

Predicted data is generated using the US Environmental Protection Agency’s EPISuite™, for more information see their website.

                    
 Log Octanol-Water Partition Coef (SRC):
    Log Kow (KOWWIN v1.67 estimate) =  3.19

 Boiling Pt, Melting Pt, Vapor Pressure Estimations (MPBPWIN v1.42):
    Boiling Pt (deg C):  504.52  (Adapted Stein & Brown method)
    Melting Pt (deg C):  214.71  (Mean or Weighted MP)
    VP(mm Hg,25 deg C):  2.01E-010  (Modified Grain method)
    Subcooled liquid VP: 2.11E-008 mm Hg (25 deg C, Mod-Grain method)

 Water Solubility Estimate from Log Kow (WSKOW v1.41):
    Water Solubility at 25 deg C (mg/L):  11.56
       log Kow used: 3.19 (estimated)
       no-melting pt equation used

 Water Sol Estimate from Fragments:
    Wat Sol (v1.01 est) =  1.8617 mg/L

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

 Henrys Law Constant (25 deg C) [HENRYWIN v3.10]:
   Bond Method :   2.13E-012  atm-m3/mole
   Group Method:   Incomplete
 Henrys LC [VP/WSol estimate using EPI values]:  8.018E-012 atm-m3/mole

 Log Octanol-Air Partition Coefficient (25 deg C) [KOAWIN v1.10]:
  Log Kow used:  3.19  (KowWin est)
  Log Kaw used:  -10.060  (HenryWin est)
      Log Koa (KOAWIN v1.10 estimate):  13.250
      Log Koa (experimental database):  None

 Probability of Rapid Biodegradation (BIOWIN v4.10):
   Biowin1 (Linear Model)         :   1.2197
   Biowin2 (Non-Linear Model)     :   0.9967
 Expert Survey Biodegradation Results:
   Biowin3 (Ultimate Survey Model):   2.0169  (months      )
   Biowin4 (Primary Survey Model) :   3.4788  (days-weeks  )
 MITI Biodegradation Probability:
   Biowin5 (MITI Linear Model)    :   0.2168
   Biowin6 (MITI Non-Linear Model):   0.0510
 Anaerobic Biodegradation Probability:
   Biowin7 (Anaerobic Linear Model): -2.8394
 Ready Biodegradability Prediction:   NO

Hydrocarbon Biodegradation (BioHCwin v1.01):
    Structure incompatible with current estimation method!

 Sorption to aerosols (25 Dec C)[AEROWIN v1.00]:
  Vapor pressure (liquid/subcooled):  2.81E-006 Pa (2.11E-008 mm Hg)
  Log Koa (Koawin est  ): 13.250
   Kp (particle/gas partition coef. (m3/ug)):
       Mackay model           :  1.07 
       Octanol/air (Koa) model:  4.37 
   Fraction sorbed to airborne particulates (phi):
       Junge-Pankow model     :  0.975 
       Mackay model           :  0.988 
       Octanol/air (Koa) model:  0.997 

 Atmospheric Oxidation (25 deg C) [AopWin v1.92]:
   Hydroxyl Radicals Reaction:
      OVERALL OH Rate Constant =  60.7612 E-12 cm3/molecule-sec
      Half-Life =     0.176 Days (12-hr day; 1.5E6 OH/cm3)
      Half-Life =     2.112 Hrs
   Ozone Reaction:
      No Ozone Reaction Estimation
   Fraction sorbed to airborne particulates (phi): 0.982 (Junge,Mackay)
    Note: the sorbed fraction may be resistant to atmospheric oxidation

 Soil Adsorption Coefficient (PCKOCWIN v1.66):
      Koc    :  1.996E+004
      Log Koc:  4.300 

 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 = 1.758 (BCF = 57.28)
       log Kow used: 3.19 (estimated)

 Volatilization from Water:
    Henry LC:  2.13E-012 atm-m3/mole  (estimated by Bond SAR Method)
    Half-Life from Model River: 5.146E+008  hours   (2.144E+007 days)
    Half-Life from Model Lake : 5.614E+009  hours   (2.339E+008 days)

 Removal In Wastewater Treatment:
    Total removal:               7.67  percent
    Total biodegradation:        0.14  percent
    Total sludge adsorption:     7.53  percent
    Total to Air:                0.00  percent
      (using 10000 hr Bio P,A,S)

 Level III Fugacity Model:
           Mass Amount    Half-Life    Emissions
            (percent)        (hr)       (kg/hr)
   Air       0.000635        4.22         1000       
   Water     9.99            1.44e+003    1000       
   Soil      89.6            2.88e+003    1000       
   Sediment  0.396           1.3e+004     0          
     Persistence Time: 2.74e+003 hr