Tetrabutoxysilane

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) =  3.96

 Boiling Pt, Melting Pt, Vapor Pressure Estimations (MPBPWIN v1.42):
    Boiling Pt (deg C):  335.62  (Adapted Stein & Brown method)
    Melting Pt (deg C):  88.01  (Mean or Weighted MP)
    VP(mm Hg,25 deg C):  7.16E-005  (Modified Grain method)
    Subcooled liquid VP: 0.000289 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):  3.821
       log Kow used: 3.96 (estimated)
       no-melting pt equation used

 Water Sol Estimate from Fragments:
    Wat Sol (v1.01 est) =  1331 mg/L

 ECOSAR Class Program (ECOSAR v0.99h):
    Class(es) found:
       Silanes (alkoxy)

 Henrys Law Constant (25 deg C) [HENRYWIN v3.10]:
   Bond Method :   1.90E-004  atm-m3/mole
   Group Method:   Incomplete
 Henrys LC [VP/WSol estimate using EPI values]:  7.903E-006 atm-m3/mole

 Log Octanol-Air Partition Coefficient (25 deg C) [KOAWIN v1.10]:
  Log Kow used:  3.96  (KowWin est)
  Log Kaw used:  -2.110  (HenryWin est)
      Log Koa (KOAWIN v1.10 estimate):  6.070
      Log Koa (experimental database):  None

 Probability of Rapid Biodegradation (BIOWIN v4.10):
   Biowin1 (Linear Model)         :   1.0287
   Biowin2 (Non-Linear Model)     :   0.9971
 Expert Survey Biodegradation Results:
   Biowin3 (Ultimate Survey Model):   3.6842  (days-weeks  )
   Biowin4 (Primary Survey Model) :   4.4615  (hours-days  )
 MITI Biodegradation Probability:
   Biowin5 (MITI Linear Model)    :   0.3531
   Biowin6 (MITI Non-Linear Model):   0.1829
 Anaerobic Biodegradation Probability:
   Biowin7 (Anaerobic Linear Model): -0.4412
 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):  0.0385 Pa (0.000289 mm Hg)
  Log Koa (Koawin est  ): 6.070
   Kp (particle/gas partition coef. (m3/ug)):
       Mackay model           :  7.79E-005 
       Octanol/air (Koa) model:  2.88E-007 
   Fraction sorbed to airborne particulates (phi):
       Junge-Pankow model     :  0.0028 
       Mackay model           :  0.00619 
       Octanol/air (Koa) model:  2.31E-005 

 Atmospheric Oxidation (25 deg C) [AopWin v1.92]:
   Hydroxyl Radicals Reaction:
      OVERALL OH Rate Constant =  49.3791 E-12 cm3/molecule-sec
      Half-Life =     0.217 Days (12-hr day; 1.5E6 OH/cm3)
      Half-Life =     2.599 Hrs
   Ozone Reaction:
      No Ozone Reaction Estimation
   Fraction sorbed to airborne particulates (phi): 0.0045 (Junge,Mackay)
    Note: the sorbed fraction may be resistant to atmospheric oxidation

 Soil Adsorption Coefficient (PCKOCWIN v1.66):
      Koc    :  1.174E+006
      Log Koc:  6.070 

 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 = 2.353 (BCF = 225.4)
       log Kow used: 3.96 (estimated)

 Volatilization from Water:
    Henry LC:  0.00019 atm-m3/mole  (estimated by Bond SAR Method)
    Half-Life from Model River:      7.344  hours
    Half-Life from Model Lake :      230.2  hours   (9.593 days)

 Removal In Wastewater Treatment:
    Total removal:              33.41  percent
    Total biodegradation:        0.29  percent
    Total sludge adsorption:    27.05  percent
    Total to Air:                6.07  percent
      (using 10000 hr Bio P,A,S)

 Level III Fugacity Model:
           Mass Amount    Half-Life    Emissions
            (percent)        (hr)       (kg/hr)
   Air       1.04            5.2          1000       
   Water     22.9            208          1000       
   Soil      74.3            416          1000       
   Sediment  1.72            1.87e+003    0          
     Persistence Time: 268 hr