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Search term: C8H28O4Si5 (Found by molecular formula)
ChemSpider 2D Image | tetrakis(dimethylsiloxy)silane | C8H28O4Si5

tetrakis(dimethylsiloxy)silane

  • Molecular FormulaC8H28O4Si5
  • Average mass328.733 Da
  • Monoisotopic mass328.083374 Da
  • ChemSpider ID3551140

More details:

Validated by Experts, Validated by Users, Non-Validated, Removed by Users

17082-47-2 [RN]
MFCD00053848 [MDL number]
Orthosilicate de tétrakis(diméthylsilyle) [French] [ACD/IUPAC Name]
Silicic acid (H4SiO4), tetrakis(dimethylsilyl) ester [ACD/Index Name]
tetrakis(dimethylsiloxy)silane
Tetrakis(dimethylsilyl) orthosilicate [ACD/IUPAC Name]
Tetrakis(dimethylsilyl)orthosilicat [German] [ACD/IUPAC Name]
[17082-47-2] [RN]
222-613-4 [EINECS]
3,3-Bis((dimethylsilyl)oxy)-1,1,5,5-tetramethyltrisiloxane
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Validated by Experts, Validated by Users, Non-Validated, Removed by Users

1784368 [DBID]

Predicted data is generated using the ACD/Labs Percepta Platform - PhysChem Module, version: 14.00

Density:
Boiling Point: 228.3±23.0 °C at 760 mmHg
Vapour Pressure: 0.1±0.4 mmHg at 25°C
Enthalpy of Vaporization: 44.6±3.0 kJ/mol
Flash Point: 91.9±22.6 °C
Index of Refraction:
Molar Refractivity:
#H bond acceptors: 4
#H bond donors: 0
#Freely Rotating Bonds: 8
#Rule of 5 Violations: 1
ACD/LogP: 10.64
ACD/LogD (pH 5.5): 7.09
ACD/BCF (pH 5.5): 145011.59
ACD/KOC (pH 5.5): 172230.19
ACD/LogD (pH 7.4): 7.09
ACD/BCF (pH 7.4): 145011.59
ACD/KOC (pH 7.4): 172230.19
Polar Surface Area: 37 Å2
Polarizability:
Surface Tension:
Molar Volume:

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

                        
 Log Octanol-Water Partition Coef (SRC):
    Log Kow (KOWWIN v1.67 estimate) =  4.33

 Boiling Pt, Melting Pt, Vapor Pressure Estimations (MPBPWIN v1.42):
    Boiling Pt (deg C):  281.00  (Adapted Stein & Brown method)
    Melting Pt (deg C):  -22.02  (Mean or Weighted MP)
    VP(mm Hg,25 deg C):  0.00532  (Modified Grain method)

 Water Solubility Estimate from Log Kow (WSKOW v1.41):
    Water Solubility at 25 deg C (mg/L):  0.01804
       log Kow used: 4.33 (estimated)
       no-melting pt equation used

 Water Sol Estimate from Fragments:
    Wat Sol (v1.01 est) =  0.0017616 mg/L

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

 Henrys Law Constant (25 deg C) [HENRYWIN v3.10]:
   Bond Method :   2.19E-001  atm-m3/mole
   Group Method:   Incomplete
 Henrys LC [VP/WSol estimate using EPI values]:  1.276E-001 atm-m3/mole

 Log Octanol-Air Partition Coefficient (25 deg C) [KOAWIN v1.10]:
  Log Kow used:  4.33  (KowWin est)
  Log Kaw used:  0.952  (HenryWin est)
      Log Koa (KOAWIN v1.10 estimate):  3.378
      Log Koa (experimental database):  None

 Probability of Rapid Biodegradation (BIOWIN v4.10):
   Biowin1 (Linear Model)         :   0.5910
   Biowin2 (Non-Linear Model)     :   0.1598
 Expert Survey Biodegradation Results:
   Biowin3 (Ultimate Survey Model):   2.4727  (weeks-months)
   Biowin4 (Primary Survey Model) :   3.3734  (days-weeks  )
 MITI Biodegradation Probability:
   Biowin5 (MITI Linear Model)    :  -0.2626
   Biowin6 (MITI Non-Linear Model):   0.0011
 Anaerobic Biodegradation Probability:
   Biowin7 (Anaerobic Linear Model):  0.1995
 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):  0.709 Pa (0.00532 mm Hg)
  Log Koa (Koawin est  ): 3.378
   Kp (particle/gas partition coef. (m3/ug)):
       Mackay model           :  4.23E-006 
       Octanol/air (Koa) model:  5.86E-010 
   Fraction sorbed to airborne particulates (phi):
       Junge-Pankow model     :  0.000153 
       Mackay model           :  0.000338 
       Octanol/air (Koa) model:  4.69E-008 

 Atmospheric Oxidation (25 deg C) [AopWin v1.92]:
   Hydroxyl Radicals Reaction:
      OVERALL OH Rate Constant =   1.1968 E-12 cm3/molecule-sec
      Half-Life =     8.937 Days (12-hr day; 1.5E6 OH/cm3)
      Half-Life =   107.246 Hrs
   Ozone Reaction:
      No Ozone Reaction Estimation
   Fraction sorbed to airborne particulates (phi): 0.000245 (Junge,Mackay)
    Note: the sorbed fraction may be resistant to atmospheric oxidation

 Soil Adsorption Coefficient (PCKOCWIN v1.66):
      Koc    :  5.007E+004
      Log Koc:  4.700 

 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 = 2.634 (BCF = 430.2)
       log Kow used: 4.33 (estimated)

 Volatilization from Water:
    Henry LC:  0.219 atm-m3/mole  (estimated by Bond SAR Method)
    Half-Life from Model River:      1.855  hours
    Half-Life from Model Lake :      172.3  hours   (7.178 days)

 Removal In Wastewater Treatment (recommended maximum 95%):
    Total removal:              99.08  percent
    Total biodegradation:        0.10  percent
    Total sludge adsorption:    27.89  percent
    Total to Air:               71.10  percent
      (using 10000 hr Bio P,A,S)

 Level III Fugacity Model:
           Mass Amount    Half-Life    Emissions
            (percent)        (hr)       (kg/hr)
   Air       24.8            214          1000       
   Water     30.8            900          1000       
   Soil      28.8            1.8e+003     1000       
   Sediment  15.6            8.1e+003     0          
     Persistence Time: 253 hr

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