Tetramethylsilane

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) =  2.72
    Log Kow (Exper. database match) =  3.24
       Exper. Ref:  BioByte (1995)

 Boiling Pt, Melting Pt, Vapor Pressure Estimations (MPBPWIN v1.42):
    Boiling Pt (deg C):  18.96  (Adapted Stein & Brown method)
    Melting Pt (deg C):  -116.52  (Mean or Weighted MP)
    VP(mm Hg,25 deg C):  716  (Mean VP of Antoine & Grain methods)
    MP  (exp database):  -99 deg C
    BP  (exp database):  26.6 deg C
    VP  (exp database):  7.18E+02 mm Hg at 25 deg C

 Water Solubility Estimate from Log Kow (WSKOW v1.41):
    Water Solubility at 25 deg C (mg/L):  215
       log Kow used: 3.24 (expkow database)
       no-melting pt equation used
     Water Sol (Exper. database match) =  19.6 mg/L (25 deg C)
        Exper. Ref:  RIDDICK,JA ET AL. (1986)

 Water Sol Estimate from Fragments:
    Wat Sol (v1.01 est) =  33.476 mg/L
    Wat Sol (Exper. database match) =  19.60
       Exper. Ref:  RIDDICK,JA ET AL. (1986)

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

 Henrys Law Constant (25 deg C) [HENRYWIN v3.10]:
   Bond Method :   2.21E-001  atm-m3/mole
   Group Method:   Incomplete
   Exper Database: 4.25E+00  atm-m3/mole
 Henrys LC [VP/WSol estimate using EPI values]:  3.866E-001 atm-m3/mole

 Log Octanol-Air Partition Coefficient (25 deg C) [KOAWIN v1.10]:
  Log Kow used:  3.24  (exp database)
  Log Kaw used:  2.240  (exp database)
      Log Koa (KOAWIN v1.10 estimate):  1.000
      Log Koa (experimental database):  None

 Probability of Rapid Biodegradation (BIOWIN v4.10):
   Biowin1 (Linear Model)         :   0.7055
   Biowin2 (Non-Linear Model)     :   0.8527
 Expert Survey Biodegradation Results:
   Biowin3 (Ultimate Survey Model):   3.0042  (weeks       )
   Biowin4 (Primary Survey Model) :   3.7204  (days-weeks  )
 MITI Biodegradation Probability:
   Biowin5 (MITI Linear Model)    :   0.4513
   Biowin6 (MITI Non-Linear Model):   0.5141
 Anaerobic Biodegradation Probability:
   Biowin7 (Anaerobic Linear Model):  0.5178
 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):  9.57E+004 Pa (718 mm Hg)
  Log Koa (Koawin est  ): 1.000
   Kp (particle/gas partition coef. (m3/ug)):
       Mackay model           :  3.13E-011 
       Octanol/air (Koa) model:  2.45E-012 
   Fraction sorbed to airborne particulates (phi):
       Junge-Pankow model     :  1.13E-009 
       Mackay model           :  2.51E-009 
       Octanol/air (Koa) model:  1.96E-010 

 Atmospheric Oxidation (25 deg C) [AopWin v1.92]:
   Hydroxyl Radicals Reaction:
      OVERALL OH Rate Constant =   0.5984 E-12 cm3/molecule-sec
      Half-Life =    17.874 Days (12-hr day; 1.5E6 OH/cm3)
   Ozone Reaction:
      No Ozone Reaction Estimation
   Fraction sorbed to airborne particulates (phi): 1.82E-009 (Junge,Mackay)
    Note: the sorbed fraction may be resistant to atmospheric oxidation

 Soil Adsorption Coefficient (PCKOCWIN v1.66):
      Koc    :  48.64
      Log Koc:  1.687 

 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 = 1.795 (BCF = 62.34)
       log Kow used: 3.24 (expkow database)

 Volatilization from Water:
    Henry LC:  4.25 atm-m3/mole  (Henry experimental database)
    Half-Life from Model River:     0.9586  hours   (57.52 min)
    Half-Life from Model Lake :      89.22  hours   (3.717 days)

 Removal In Wastewater Treatment (recommended maximum 95%):
    Total removal:              99.94  percent
    Total biodegradation:        0.03  percent
    Total sludge adsorption:     4.08  percent
    Total to Air:               95.83  percent
      (using 10000 hr Bio P,A,S)

 Level III Fugacity Model:
           Mass Amount    Half-Life    Emissions
            (percent)        (hr)       (kg/hr)
   Air       50.2            257          1000       
   Water     47.8            360          1000       
   Soil      0.782           720          1000       
   Sediment  1.26            3.24e+003    0          
     Persistence Time: 129 hr