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ChemSpider 2D Image | MFCD00048586 | C8H20S4Si

MFCD00048586

  • Molecular FormulaC8H20S4Si
  • Average mass272.590 Da
  • Monoisotopic mass272.021698 Da
  • ChemSpider ID2501032

More details:

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

18236-38-9 [RN]
MFCD00048586
TETRAETHYL ORTHOTHIOSILICATE
Tetrakis(ethylsulfanyl)silan [German] [ACD/IUPAC Name]
Tetrakis(ethylsulfanyl)silane [ACD/IUPAC Name]
Tétrakis(éthylsulfanyl)silane [French] [ACD/IUPAC Name]
Thiosilicic acid (H4SiS4), tetraethyl ester [ACD/Index Name]

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

Density: 1.1±0.1 g/cm3
Boiling Point: 326.2±25.0 °C at 760 mmHg
Vapour Pressure: 0.0±0.7 mmHg at 25°C
Enthalpy of Vaporization: 54.6±3.0 kJ/mol
Flash Point: 151.1±23.2 °C
Index of Refraction: 1.546
Molar Refractivity: 79.8±0.3 cm3
#H bond acceptors: 0
#H bond donors: 0
#Freely Rotating Bonds: 8
#Rule of 5 Violations: 1
ACD/LogP: 7.42
ACD/LogD (pH 5.5): 5.92
ACD/BCF (pH 5.5): 18687.60
ACD/KOC (pH 5.5): 39734.20
ACD/LogD (pH 7.4): 5.92
ACD/BCF (pH 7.4): 18687.60
ACD/KOC (pH 7.4): 39734.20
Polar Surface Area: 101 Å2
Polarizability: 31.6±0.5 10-24cm3
Surface Tension: 34.7±3.0 dyne/cm
Molar Volume: 252.2±3.0 cm3

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

                        
 Log Octanol-Water Partition Coef (SRC):
    Log Kow (KOWWIN v1.67 estimate) =  3.06

 Boiling Pt, Melting Pt, Vapor Pressure Estimations (MPBPWIN v1.42):
    Boiling Pt (deg C):  326.91  (Adapted Stein & Brown method)
    Melting Pt (deg C):  64.72  (Mean or Weighted MP)
    VP(mm Hg,25 deg C):  0.000196  (Modified Grain method)
    Subcooled liquid VP: 0.000462 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):  42.62
       log Kow used: 3.07 (estimated)
       no-melting pt equation used

 Water Sol Estimate from Fragments:
    Wat Sol (v1.01 est) =  0.29478 mg/L

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

 Henrys Law Constant (25 deg C) [HENRYWIN v3.10]:
   Bond Method :   7.84E-009  atm-m3/mole
   Group Method:   Incomplete
 Henrys LC [VP/WSol estimate using EPI values]:  1.649E-006 atm-m3/mole

 Log Octanol-Air Partition Coefficient (25 deg C) [KOAWIN v1.10]:
  Log Kow used:  3.06  (KowWin est)
  Log Kaw used:  -6.494  (HenryWin est)
      Log Koa (KOAWIN v1.10 estimate):  9.554
      Log Koa (experimental database):  None

 Probability of Rapid Biodegradation (BIOWIN v4.10):
   Biowin1 (Linear Model)         :   0.6178
   Biowin2 (Non-Linear Model)     :   0.2970
 Expert Survey Biodegradation Results:
   Biowin3 (Ultimate Survey Model):   2.5968  (weeks-months)
   Biowin4 (Primary Survey Model) :   3.4545  (days-weeks  )
 MITI Biodegradation Probability:
   Biowin5 (MITI Linear Model)    :   0.1005
   Biowin6 (MITI Non-Linear Model):   0.0280
 Anaerobic Biodegradation Probability:
   Biowin7 (Anaerobic Linear Model):  0.6218
 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):  0.0616 Pa (0.000462 mm Hg)
  Log Koa (Koawin est  ): 9.554
   Kp (particle/gas partition coef. (m3/ug)):
       Mackay model           :  4.87E-005 
       Octanol/air (Koa) model:  0.000879 
   Fraction sorbed to airborne particulates (phi):
       Junge-Pankow model     :  0.00176 
       Mackay model           :  0.00388 
       Octanol/air (Koa) model:  0.0657 

 Atmospheric Oxidation (25 deg C) [AopWin v1.92]:
   Hydroxyl Radicals Reaction:
      OVERALL OH Rate Constant =  29.8099 E-12 cm3/molecule-sec
      Half-Life =     0.359 Days (12-hr day; 1.5E6 OH/cm3)
      Half-Life =     4.306 Hrs
   Ozone Reaction:
      No Ozone Reaction Estimation
   Fraction sorbed to airborne particulates (phi): 0.00282 (Junge,Mackay)
    Note: the sorbed fraction may be resistant to atmospheric oxidation

 Soil Adsorption Coefficient (PCKOCWIN v1.66):
      Koc    :  8766
      Log Koc:  3.943 

 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 = 1.660 (BCF = 45.71)
       log Kow used: 3.07 (estimated)

 Volatilization from Water:
    Henry LC:  7.84E-009 atm-m3/mole  (estimated by Bond SAR Method)
    Half-Life from Model River: 1.233E+005  hours   (5137 days)
    Half-Life from Model Lake : 1.345E+006  hours   (5.605E+004 days)

 Removal In Wastewater Treatment:
    Total removal:               6.23  percent
    Total biodegradation:        0.13  percent
    Total sludge adsorption:     6.11  percent
    Total to Air:                0.00  percent
      (using 10000 hr Bio P,A,S)

 Level III Fugacity Model:
           Mass Amount    Half-Life    Emissions
            (percent)        (hr)       (kg/hr)
   Air       0.0509          8.61         1000       
   Water     13.6            900          1000       
   Soil      86              1.8e+003     1000       
   Sediment  0.354           8.1e+003     0          
     Persistence Time: 1.62e+003 hr

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