Dihydrodehydro-β-ionone

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) =  4.13

 Boiling Pt, Melting Pt, Vapor Pressure Estimations (MPBPWIN v1.42):
    Boiling Pt (deg C):  259.94  (Adapted Stein & Brown method)
    Melting Pt (deg C):  54.50  (Mean or Weighted MP)
    VP(mm Hg,25 deg C):  0.0141  (Modified Grain method)
    Subcooled liquid VP: 0.0265 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):  14.09
       log Kow used: 4.13 (estimated)
       no-melting pt equation used

 Water Sol Estimate from Fragments:
    Wat Sol (v1.01 est) =  73.14 mg/L

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

 Henrys Law Constant (25 deg C) [HENRYWIN v3.10]:
   Bond Method :   3.26E-004  atm-m3/mole
   Group Method:   Incomplete
 Henrys LC [VP/WSol estimate using EPI values]:  2.532E-004 atm-m3/mole

 Log Octanol-Air Partition Coefficient (25 deg C) [KOAWIN v1.10]:
  Log Kow used:  4.13  (KowWin est)
  Log Kaw used:  -1.875  (HenryWin est)
      Log Koa (KOAWIN v1.10 estimate):  6.005
      Log Koa (experimental database):  None

 Probability of Rapid Biodegradation (BIOWIN v4.10):
   Biowin1 (Linear Model)         :   0.4789
   Biowin2 (Non-Linear Model)     :   0.1303
 Expert Survey Biodegradation Results:
   Biowin3 (Ultimate Survey Model):   2.5396  (weeks-months)
   Biowin4 (Primary Survey Model) :   3.3946  (days-weeks  )
 MITI Biodegradation Probability:
   Biowin5 (MITI Linear Model)    :   0.4580
   Biowin6 (MITI Non-Linear Model):   0.3628
 Anaerobic Biodegradation Probability:
   Biowin7 (Anaerobic Linear Model): -0.4234
 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):  3.53 Pa (0.0265 mm Hg)
  Log Koa (Koawin est  ): 6.005
   Kp (particle/gas partition coef. (m3/ug)):
       Mackay model           :  8.49E-007 
       Octanol/air (Koa) model:  2.48E-007 
   Fraction sorbed to airborne particulates (phi):
       Junge-Pankow model     :  3.07E-005 
       Mackay model           :  6.79E-005 
       Octanol/air (Koa) model:  1.99E-005 

 Atmospheric Oxidation (25 deg C) [AopWin v1.92]:
   Hydroxyl Radicals Reaction:
      OVERALL OH Rate Constant = 266.2256 E-12 cm3/molecule-sec
      Half-Life =     0.040 Days (12-hr day; 1.5E6 OH/cm3)
      Half-Life =    28.927 Min
   Ozone Reaction:
      OVERALL Ozone Rate Constant =   410.670013 E-17 cm3/molecule-sec
      Half-Life =     0.003 Days (at 7E11 mol/cm3)
      Half-Life =      4.018 Min
   Fraction sorbed to airborne particulates (phi): 4.93E-005 (Junge,Mackay)
    Note: the sorbed fraction may be resistant to atmospheric oxidation

 Soil Adsorption Coefficient (PCKOCWIN v1.66):
      Koc    :  308.3
      Log Koc:  2.489 

 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 = 2.484 (BCF = 304.7)
       log Kow used: 4.13 (estimated)

 Volatilization from Water:
    Henry LC:  0.000326 atm-m3/mole  (estimated by Bond SAR Method)
    Half-Life from Model River:      3.906  hours
    Half-Life from Model Lake :      158.9  hours   (6.62 days)

 Removal In Wastewater Treatment:
    Total removal:              42.98  percent
    Total biodegradation:        0.34  percent
    Total sludge adsorption:    34.31  percent
    Total to Air:                8.32  percent
      (using 10000 hr Bio P,A,S)

 Level III Fugacity Model:
           Mass Amount    Half-Life    Emissions
            (percent)        (hr)       (kg/hr)
   Air       0.00453         0.0626       1000       
   Water     10.7            900          1000       
   Soil      85.9            1.8e+003     1000       
   Sediment  3.41            8.1e+003     0          
     Persistence Time: 976 hr