ChemSpider 2D Image | MFCD00053564 | C12H36Si6

MFCD00053564

  • Molecular FormulaC12H36Si6
  • Average mass348.927 Da
  • Monoisotopic mass348.143250 Da
  • ChemSpider ID70132

More details:






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

1,1,2,2,3,3,4,4,5,5,6,6-Dodecamethylcyclohexasilane
223-860-0 [EINECS]
4098-30-0 [RN]
Cyclohexasilane, dodecamethyl- [ACD/Index Name]
Dodecamethylcyclohexasilane
Dodecamethylhexasilinan [German] [ACD/IUPAC Name]
Dodecamethylhexasilinane [ACD/IUPAC Name]
Dodécaméthylhexasilinane [French] [ACD/IUPAC Name]
MFCD00053564
1,1,2,2,3,3,4,4,5,5,6,6-Dodecamethylhexasilinane
More...

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

437492_ALDRICH [DBID]
AIDS011867 [DBID]
AIDS-011867 [DBID]
NSC635060 [DBID]
  • Experimental Physico-chemical Properties
  • Gas Chromatography
    • Retention Index (Kovats):

      587 (estimated with error: 89) NIST Spectra mainlib_157834, replib_73690, replib_311715
    • Retention Index (Normal Alkane):

      1593 (Program type: Isothermal; Col... (show more) umn class: Semi-standard non-polar; Column diameter: 0.25 mm; Column length: 50 m; Column type: Capillary; CAS no: 4098300; Active phase: Apiezon L; Carrier gas: Nitrogen; Data type: Normal alkane RI; Authors: Szekely, T.; Nefedov, O.M.; Garzo, G.; Shiryayav, V.I.; Fritz, D., Gas chromatographic investigation of the thermal decomposition of polydimethylsilylene, Acta Chim. Acad. Sci. Hung., 54(3-4), 1967, 241-254., Program type: Ramp; Column cl... (show more) ass: Semi-standard non-polar; Column diameter: 0.25 mm; Column length: 50 m; Column type: Capillary; Heat rate: 5 K/min; Start T: 60 C; End T: 250 C; CAS no: 4098300; Active phase: Apiezon L; Carrier gas: Nitrogen; Data type: Normal alkane RI; Authors: Szekely, T.; Nefedov, O.M.; Garzo, G.; Shiryayav, V.I.; Fritz, D., Gas chromatographic investigation of the thermal decomposition of polydimethylsilylene, Acta Chim. Acad. Sci. Hung., 54(3-4), 1967, 241-254.) NIST Spectra nist ri

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

Density: 0.8±0.1 g/cm3
Boiling Point: 263.9±23.0 °C at 760 mmHg
Vapour Pressure: 0.0±0.5 mmHg at 25°C
Enthalpy of Vaporization: 48.2±3.0 kJ/mol
Flash Point: 81.3±15.6 °C
Index of Refraction: 1.426
Molar Refractivity: 108.1±0.4 cm3
#H bond acceptors: 0
#H bond donors: 0
#Freely Rotating Bonds: 0
#Rule of 5 Violations:
ACD/LogP:
ACD/LogD (pH 5.5):
ACD/BCF (pH 5.5):
ACD/KOC (pH 5.5):
ACD/LogD (pH 7.4):
ACD/BCF (pH 7.4):
ACD/KOC (pH 7.4):
Polar Surface Area: 0 Å2
Polarizability: 42.8±0.5 10-24cm3
Surface Tension: 15.9±5.0 dyne/cm
Molar Volume: 421.7±5.0 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) =  8.60

 Boiling Pt, Melting Pt, Vapor Pressure Estimations (MPBPWIN v1.42):
    Boiling Pt (deg C):  44.18  (Adapted Stein & Brown method)
    Melting Pt (deg C):  -131.15  (Mean or Weighted MP)
    VP(mm Hg,25 deg C):  367  (Mean VP of Antoine & Grain methods)

 Water Solubility Estimate from Log Kow (WSKOW v1.41):
    Water Solubility at 25 deg C (mg/L):  0.0002851
       log Kow used: 8.60 (estimated)
       no-melting pt equation used

 Water Sol Estimate from Fragments:
    Wat Sol (v1.01 est) =  3.4893e-007 mg/L

 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]:  5.910E+005 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)         :   0.5814
   Biowin2 (Non-Linear Model)     :   0.1250
 Expert Survey Biodegradation Results:
   Biowin3 (Ultimate Survey Model):   2.4281  (weeks-months)
   Biowin4 (Primary Survey Model) :   3.3443  (days-weeks  )
 MITI Biodegradation Probability:
   Biowin5 (MITI Linear Model)    :  -0.3210
   Biowin6 (MITI Non-Linear Model):   0.0007
 Anaerobic Biodegradation Probability:
   Biowin7 (Anaerobic Linear Model): -0.1188
 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):  4.87E+004 Pa (365 mm Hg)
  Log Koa (): not available
   Kp (particle/gas partition coef. (m3/ug)):
       Mackay model           :  6.16E-011 
       Octanol/air (Koa) model:  not available
   Fraction sorbed to airborne particulates (phi):
       Junge-Pankow model     :  2.23E-009 
       Mackay model           :  4.93E-009 
       Octanol/air (Koa) model:  not available

 Atmospheric Oxidation (25 deg C) [AopWin v1.92]:
   Hydroxyl Radicals Reaction:
      OVERALL OH Rate Constant =   1.7952 E-12 cm3/molecule-sec
      Half-Life =     5.958 Days (12-hr day; 1.5E6 OH/cm3)
      Half-Life =    71.497 Hrs
   Ozone Reaction:
      No Ozone Reaction Estimation
   Fraction sorbed to airborne particulates (phi): 3.58E-009 (Junge,Mackay)
    Note: the sorbed fraction may be resistant to atmospheric oxidation

 Soil Adsorption Coefficient (PCKOCWIN v1.66):
      Koc    :  4.086E+004
      Log Koc:  4.611 

 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 = 2.619 (BCF = 416.3)
       log Kow used: 8.60 (estimated)

 Volatilization from Water:
    Henry LC:  5.91E+005 atm-m3/mole  (calculated from VP/WS)
    Half-Life from Model River:      1.906  hours
    Half-Life from Model Lake :      177.4  hours   (7.393 days)

 Removal In Wastewater Treatment (recommended maximum 95%):
    Total removal:             100.00  percent
    Total biodegradation:        0.18  percent
    Total sludge adsorption:    59.89  percent
    Total to Air:               39.93  percent
      (using 10000 hr Bio P,A,S)

 Level III Fugacity Model:
           Mass Amount    Half-Life    Emissions
            (percent)        (hr)       (kg/hr)
   Air       1.98            143          1000       
   Water     2.6             900          1000       
   Soil      0.0534          1.8e+003     1000       
   Sediment  95.4            8.1e+003     0          
     Persistence Time: 2.27e+003 hr




                    

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