ChemSpider 2D Image | 3,4-Dichloro-1-dimethyl(tert-butyl)silyloxybenzene | C12H18Cl2OSi

3,4-Dichloro-1-dimethyl(tert-butyl)silyloxybenzene

  • Molecular FormulaC12H18Cl2OSi
  • Average mass277.262 Da
  • Monoisotopic mass276.050385 Da
  • ChemSpider ID464025

More details:






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

(3,4-Dichlorophenoxy)(dimethyl)(2-methyl-2-propanyl)silane [ACD/IUPAC Name]
(3,4-Dichlorophénoxy)(diméthyl)(2-méthyl-2-propanyl)silane [French] [ACD/IUPAC Name]
(3,4-Dichlorphenoxy)(dimethyl)(2-methyl-2-propanyl)silan [German] [ACD/IUPAC Name]
3,4-Dichloro-1-dimethyl(tert-butyl)silyloxybenzene
Benzene, 1,2-dichloro-4-[[(1,1-dimethylethyl)dimethylsilyl]oxy]- [ACD/Index Name]
188645-81-0 [RN]
3,4-Dichlorophenol, tert-butyldimethylsilyl ether
tert-Butyl(3,4-dichlorophenoxy)dimethylsilane

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

  • Gas Chromatography
    • Retention Index (Kovats):

      1552 (estimated with error: 89) NIST Spectra mainlib_333424, replib_307924
    • Retention Index (Normal Alkane):

      1629 (Program type: Complex; Column... (show more) class: Semi-standard non-polar; Column diameter: 0.2 mm; Column length: 25 m; Column type: Capillary; Description: 100C(1min) => 30C/min=>150C(1min) =>3C/min => 205C => 10C/min => 260C(23min); CAS no: 188645810; Active phase: HP-5; Carrier gas: He; Phase thickness: 0.33 um; Data type: Normal alkane RI; Authors: Heberer, T.; Stan, H.-J., Detection of more than 50 substituted phenols as their t-butyldi-methylsilyl derivatives using gas chromatography-mass spectrometry, Anal. Chim. Acta., 341, 1997, 21-34.) NIST Spectra nist ri
    • Retention Index (Linear):

      1653.8 (Program type: Complex; Column... (show more) class: Semi-standard non-polar; Column diameter: 0.25 mm; Column length: 30 m; Column type: Capillary; Description: Multi-step temperature program; T(initial)=60C; T(final)=270C; CAS no: 188645810; Active phase: VF-5MS; Carrier gas: He; Phase thickness: 0.25 um; Data type: Linear RI; Authors: Tret'yakov, K.V., Retention Data. NIST Mass Spectrometry Data Center., 2007.) NIST Spectra nist ri
      1622 (Program type: Complex; Column... (show more) class: Semi-standard non-polar; Column diameter: .19 mm; Column length: 30 m; Column type: Capillary; Description: 50 C to 120 C at 5 C/min; 120 C to 290 C at 12 C/min; CAS no: 188645810; Active phase: 5 % Phenyl methyl siloxane; Data type: Linear RI; Authors: Zaikin, V.G., Personal Communication: Retention indices measured during the period 2001 to 2003, 2003.) NIST Spectra nist ri

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

Density: 1.1±0.1 g/cm3
Boiling Point: 262.0±25.0 °C at 760 mmHg
Vapour Pressure: 0.0±0.5 mmHg at 25°C
Enthalpy of Vaporization: 48.0±3.0 kJ/mol
Flash Point: 94.2±15.3 °C
Index of Refraction: 1.495
Molar Refractivity: 74.6±0.3 cm3
#H bond acceptors: 1
#H bond donors: 0
#Freely Rotating Bonds: 3
#Rule of 5 Violations: 0
ACD/LogP: 2.05
ACD/LogD (pH 5.5): 3.26
ACD/BCF (pH 5.5): 176.20
ACD/KOC (pH 5.5): 1410.24
ACD/LogD (pH 7.4): 3.26
ACD/BCF (pH 7.4): 176.20
ACD/KOC (pH 7.4): 1410.24
Polar Surface Area: 9 Å2
Polarizability: 29.6±0.5 10-24cm3
Surface Tension: 28.1±3.0 dyne/cm
Molar Volume: 255.7±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) =  6.50

 Boiling Pt, Melting Pt, Vapor Pressure Estimations (MPBPWIN v1.42):
    Boiling Pt (deg C):  284.84  (Adapted Stein & Brown method)
    Melting Pt (deg C):  66.99  (Mean or Weighted MP)
    VP(mm Hg,25 deg C):  0.00175  (Modified Grain method)
    Subcooled liquid VP: 0.00435 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):  0.04674
       log Kow used: 6.50 (estimated)
       no-melting pt equation used

 Water Sol Estimate from Fragments:
    Wat Sol (v1.01 est) =  1.2686 mg/L

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

 Henrys Law Constant (25 deg C) [HENRYWIN v3.10]:
   Bond Method :   7.69E-003  atm-m3/mole
   Group Method:   Incomplete
 Henrys LC [VP/WSol estimate using EPI values]:  1.366E-002 atm-m3/mole

 Log Octanol-Air Partition Coefficient (25 deg C) [KOAWIN v1.10]:
  Log Kow used:  6.50  (KowWin est)
  Log Kaw used:  -0.503  (HenryWin est)
      Log Koa (KOAWIN v1.10 estimate):  7.003
      Log Koa (experimental database):  None

 Probability of Rapid Biodegradation (BIOWIN v4.10):
   Biowin1 (Linear Model)         :   0.0668
   Biowin2 (Non-Linear Model)     :   0.0013
 Expert Survey Biodegradation Results:
   Biowin3 (Ultimate Survey Model):   1.9611  (months      )
   Biowin4 (Primary Survey Model) :   2.9636  (weeks       )
 MITI Biodegradation Probability:
   Biowin5 (MITI Linear Model)    :  -0.0061
   Biowin6 (MITI Non-Linear Model):   0.0063
 Anaerobic Biodegradation Probability:
   Biowin7 (Anaerobic Linear Model): -0.9868
 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):  0.58 Pa (0.00435 mm Hg)
  Log Koa (Koawin est  ): 7.003
   Kp (particle/gas partition coef. (m3/ug)):
       Mackay model           :  5.17E-006 
       Octanol/air (Koa) model:  2.47E-006 
   Fraction sorbed to airborne particulates (phi):
       Junge-Pankow model     :  0.000187 
       Mackay model           :  0.000414 
       Octanol/air (Koa) model:  0.000198 

 Atmospheric Oxidation (25 deg C) [AopWin v1.92]:
   Hydroxyl Radicals Reaction:
      OVERALL OH Rate Constant =   5.2178 E-12 cm3/molecule-sec
      Half-Life =     2.050 Days (12-hr day; 1.5E6 OH/cm3)
      Half-Life =    24.599 Hrs
   Ozone Reaction:
      No Ozone Reaction Estimation
   Fraction sorbed to airborne particulates (phi): 0.0003 (Junge,Mackay)
    Note: the sorbed fraction may be resistant to atmospheric oxidation

 Soil Adsorption Coefficient (PCKOCWIN v1.66):
      Koc    :  2.607E+004
      Log Koc:  4.416 

 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 = 4.305 (BCF = 2.017e+004)
       log Kow used: 6.50 (estimated)

 Volatilization from Water:
    Henry LC:  0.00769 atm-m3/mole  (estimated by Bond SAR Method)
    Half-Life from Model River:      1.826  hours
    Half-Life from Model Lake :      159.5  hours   (6.648 days)

 Removal In Wastewater Treatment:
    Total removal:              93.72  percent
    Total biodegradation:        0.75  percent
    Total sludge adsorption:    91.22  percent
    Total to Air:                1.75  percent
      (using 10000 hr Bio P,A,S)

 Level III Fugacity Model:
           Mass Amount    Half-Life    Emissions
            (percent)        (hr)       (kg/hr)
   Air       0.421           49.2         1000       
   Water     1.84            1.44e+003    1000       
   Soil      36              2.88e+003    1000       
   Sediment  61.7            1.3e+004     0          
     Persistence Time: 3.83e+003 hr




                    

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