Cerium(IV) oxide

Predicted data is generated using the ACD/Labs Percepta Platform - PhysChem Module

Predicted data is generated using the US Environmental Protection Agency�s EPISuite™

                        
 Log Octanol-Water Partition Coef (SRC):
    Log Kow (KOWWIN v1.67 estimate) =  2.23

 Boiling Pt, Melting Pt, Vapor Pressure Estimations (MPBPWIN v1.42):
    Boiling Pt (deg C):  564.42  (Adapted Stein & Brown method)
    Melting Pt (deg C):  242.69  (Mean or Weighted MP)
    VP(mm Hg,25 deg C):  2.45E+003  (Mean VP of Antoine & Grain methods)
    MP  (exp database):  -72 deg C
    BP  (exp database):  -10 deg C
    VP  (exp database):  3.00E+03 mm Hg at 25 deg C

 Water Solubility Estimate from Log Kow (WSKOW v1.41):
    Water Solubility at 25 deg C (mg/L):  750.3
       log Kow used: 2.23 (estimated)
       no-melting pt equation used
     Water Sol (Exper. database match) =  1.07e+005 mg/L (21 deg C)
        Exper. Ref:  VENABLE,CS & FUWA,T (1922)

 Water Sol Estimate from Fragments:
    Wat Sol (v1.01 est) =  3.0552e+005 mg/L
    Wat Sol (Exper. database match) =  107000.00
       Exper. Ref:  VENABLE,CS & FUWA,T (1922)

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

 Henrys Law Constant (25 deg C) [HENRYWIN v3.10]:
   Bond Method :   Incomplete
   Group Method:   Incomplete
 Henrys LC [VP/WSol estimate using EPI values]:  2.294E-001 atm-m3/mole

 Log Octanol-Air Partition Coefficient (25 deg C) [KOAWIN v1.10]:
  Can Not Estimate (can not calculate HenryLC)

 Probability of Rapid Biodegradation (BIOWIN v4.10):
   Biowin1 (Linear Model)         :   0.6656
   Biowin2 (Non-Linear Model)     :   0.6375
 Expert Survey Biodegradation Results:
   Biowin3 (Ultimate Survey Model):   2.8188  (weeks       )
   Biowin4 (Primary Survey Model) :   3.5994  (days-weeks  )
 MITI Biodegradation Probability:
   Biowin5 (MITI Linear Model)    :   0.2001
   Biowin6 (MITI Non-Linear Model):   0.0799
 Anaerobic Biodegradation Probability:
   Biowin7 (Anaerobic Linear Model):  0.8361
 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):  4E+005 Pa (3E+003 mm Hg)
  Log Koa (): not available
   Kp (particle/gas partition coef. (m3/ug)):
       Mackay model           :  7.5E-012 
       Octanol/air (Koa) model:  not available
   Fraction sorbed to airborne particulates (phi):
       Junge-Pankow model     :  2.71E-010 
       Mackay model           :  6E-010 
       Octanol/air (Koa) model:  not available

 Atmospheric Oxidation (25 deg C) [AopWin v1.92]:
   Hydroxyl Radicals Reaction:
      OVERALL OH Rate Constant =   0.0000 E-12 cm3/molecule-sec
      Half-Life =   -------
   Ozone Reaction:
      No Ozone Reaction Estimation
   Fraction sorbed to airborne particulates (phi): 4.35E-010 (Junge,Mackay)
    Note: the sorbed fraction may be resistant to atmospheric oxidation

 Soil Adsorption Coefficient (PCKOCWIN v1.66):
      Koc    :  23.74
      Log Koc:  1.376 

 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 = 1.016 (BCF = 10.38)
       log Kow used: 2.23 (estimated)

 Volatilization from Water:
    Henry LC:  0.229 atm-m3/mole  (calculated from VP/WS)
    Half-Life from Model River:      1.342  hours
    Half-Life from Model Lake :      124.6  hours   (5.194 days)

 Removal In Wastewater Treatment (recommended maximum 95%):
    Total removal:              99.65  percent
    Total biodegradation:        0.02  percent
    Total sludge adsorption:     0.65  percent
    Total to Air:               98.98  percent
      (using 10000 hr Bio P,A,S)

 Level III Fugacity Model:
           Mass Amount    Half-Life    Emissions
            (percent)        (hr)       (kg/hr)
   Air       56.7            1e+005       1000       
   Water     42.5            360          1000       
   Soil      0.615           720          1000       
   Sediment  0.199           3.24e+003    0          
     Persistence Time: 145 hr