ChemSpider 2D Image | Metasilicic acid | H2O3Si

Metasilicic acid

  • Molecular FormulaH2O3Si
  • Average mass78.100 Da
  • Monoisotopic mass77.977318 Da
  • ChemSpider ID14085

More details:






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

Metasilicic acid
14807-96-6 [RN]
215-683-2 [EINECS]
231-716-3 [EINECS]
238-877-9 [EINECS]
4OI8D3YOH1
Acide silicique [French] [ACD/IUPAC Name]
Kieselsäure [German] [ACD/IUPAC Name]
MFCD00054122
oxosilanediol
More...

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

288772_SIAL [DBID]
306363_SIAL [DBID]
60780_FLUKA [DBID]
Caswell No. 734 [DBID]
EPA Pesticide Chemical Code 072602 [DBID]
G 952 [DBID]
K 60 [DBID]
SIL350_SIGMA [DBID]
SILA200_SIGMA [DBID]
SILAW_SIGMA [DBID]
More...
  • Miscellaneous
    • Safety:

      36-60 Alfa Aesar 33270
      48/20 Alfa Aesar 33270
      WARNING: Causes silicosis, eye irritation Alfa Aesar 33270

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

Density:
Boiling Point:
Vapour Pressure:
Enthalpy of Vaporization:
Flash Point:
Index of Refraction:
Molar Refractivity:
#H bond acceptors: 3
#H bond donors: 2
#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: 58 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) =  -1.50

 Boiling Pt, Melting Pt, Vapor Pressure Estimations (MPBPWIN v1.42):
    Boiling Pt (deg C):  549.66  (Adapted Stein & Brown method)
    Melting Pt (deg C):  219.74  (Mean or Weighted MP)
    VP(mm Hg,25 deg C):  1.29E-014  (Modified Grain method)
    Subcooled liquid VP: 1.55E-012 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):  1e+006
       log Kow used: -1.50 (estimated)
       no-melting pt equation used

 Water Sol Estimate from Fragments:
    Wat Sol (v1.01 est) =  1e+006 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]:  1.326E-021 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)         :   0.7104
   Biowin2 (Non-Linear Model)     :   0.8699
 Expert Survey Biodegradation Results:
   Biowin3 (Ultimate Survey Model):   3.0266  (weeks       )
   Biowin4 (Primary Survey Model) :   3.7351  (days-weeks  )
 MITI Biodegradation Probability:
   Biowin5 (MITI Linear Model)    :   0.4798
   Biowin6 (MITI Non-Linear Model):   0.5673
 Anaerobic Biodegradation Probability:
   Biowin7 (Anaerobic Linear Model):  0.8361
 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):  2.07E-010 Pa (1.55E-012 mm Hg)
  Log Koa (): not available
   Kp (particle/gas partition coef. (m3/ug)):
       Mackay model           :  1.45E+004 
       Octanol/air (Koa) model:  not available
   Fraction sorbed to airborne particulates (phi):
       Junge-Pankow model     :  1 
       Mackay model           :  1 
       Octanol/air (Koa) model:  not available

 Atmospheric Oxidation (25 deg C) [AopWin v1.92]:
   Hydroxyl Radicals Reaction:
      OVERALL OH Rate Constant =   6.9000 E-12 cm3/molecule-sec
      Half-Life =     1.550 Days (12-hr day; 1.5E6 OH/cm3)
      Half-Life =    18.602 Hrs
   Ozone Reaction:
      No Ozone Reaction Estimation
   Fraction sorbed to airborne particulates (phi): 1 (Junge,Mackay)
    Note: the sorbed fraction may be resistant to atmospheric oxidation

 Soil Adsorption Coefficient (PCKOCWIN v1.66):
      Koc    :  35.04
      Log Koc:  1.545 

 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 = 0.500 (BCF = 3.162)
       log Kow used: -1.50 (estimated)

 Volatilization from Water:
    Henry LC:  1.33E-021 atm-m3/mole  (calculated from VP/WS)
    Half-Life from Model River: 3.903E+017  hours   (1.626E+016 days)
    Half-Life from Model Lake : 4.258E+018  hours   (1.774E+017 days)

 Removal In Wastewater Treatment:
    Total removal:               1.85  percent
    Total biodegradation:        0.09  percent
    Total sludge adsorption:     1.75  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       2.58e-008       37.2         1000       
   Water     39              360          1000       
   Soil      60.9            720          1000       
   Sediment  0.0713          3.24e+003    0          
     Persistence Time: 579 hr




                    

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