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CAS Number: 2445-53-6
SMILES : [Si](O)(O)(O)C
CHEM : Methyl-trihydroxy silane
MOL FOR: C1 H6 O3 Si1
MOL WT : 94.14
------------------------------ EPI SUMMARY (v4.00) --------------------------
Physical Property Inputs:
Log Kow (octanol-water): ------
Boiling Point (deg C) : ------
Melting Point (deg C) : ------
Vapor Pressure (mm Hg) : ------
Water Solubility (mg/L): ------
Henry LC (atm-m3/mole) : ------
Log Octanol-Water Partition Coef (SRC):
Log Kow (KOWWIN v1.67 estimate) = -2.36
Boiling Pt, Melting Pt, Vapor Pressure Estimations (MPBPVP v1.43):
Boiling Pt (deg C): 250.57 (Adapted Stein & Brown method)
Melting Pt (deg C): 25.42 (Mean or Weighted MP)
VP(mm Hg,25 deg C): 0.00115 (Modified Grain method)
VP (Pa, 25 deg C) : 0.153 (Modified Grain method)
Subcooled liquid VP: 0.00116 mm Hg (25 deg C, Mod-Grain method)
: 0.154 Pa (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: -2.36 (estimated)
no-melting pt equation used
Water Sol Estimate from Fragments:
Wat Sol (v1.01 est) = 1e+006 mg/L
ECOSAR Class Program (ECOSAR v1.00):
Class(es) found:
Neutral Organics
Henrys Law Constant (25 deg C) [HENRYWIN v3.20]:
Bond Method : 2.64E-012 atm-m3/mole (2.68E-007 Pa-m3/mole)
Group Method: Incomplete
For Henry LC Comparison Purposes:
User-Entered Henry LC: not entered
Henrys LC [via VP/WSol estimate using User-Entered or Estimated values]:
HLC: 1.424E-010 atm-m3/mole (1.443E-005 Pa-m3/mole)
VP: 0.00115 mm Hg (source: MPBPVP)
WS: 1E+006 mg/L (source: WSKOWWIN)
Log Octanol-Air Partition Coefficient (25 deg C) [KOAWIN v1.10]:
Log Kow used: -2.36 (KowWin est)
Log Kaw used: -9.967 (HenryWin est)
Log Koa (KOAWIN v1.10 estimate): 7.607
Log Koa (experimental database): None
Probability of Rapid Biodegradation (BIOWIN v4.10):
Biowin1 (Linear Model) : 0.7027
Biowin2 (Non-Linear Model) : 0.8418
Expert Survey Biodegradation Results:
Biowin3 (Ultimate Survey Model): 2.9911 (weeks )
Biowin4 (Primary Survey Model) : 3.7119 (days-weeks )
MITI Biodegradation Probability:
Biowin5 (MITI Linear Model) : 0.4325
Biowin6 (MITI Non-Linear Model): 0.4569
Anaerobic Biodegradation Probability:
Biowin7 (Anaerobic Linear Model): 0.7565
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): 0.155 Pa (0.00116 mm Hg)
Log Koa (Koawin est ): 7.607
Kp (particle/gas partition coef. (m3/ug)):
Mackay model : 1.94E-005
Octanol/air (Koa) model: 9.93E-006
Fraction sorbed to airborne particulates (phi):
Junge-Pankow model : 0.0007
Mackay model : 0.00155
Octanol/air (Koa) model: 0.000794
Atmospheric Oxidation (25 deg C) [AopWin v1.92]:
Hydroxyl Radicals Reaction:
OVERALL OH Rate Constant = 10.4996 E-12 cm3/molecule-sec
Half-Life = 1.019 Days (12-hr day; 1.5E6 OH/cm3)
Half-Life = 12.224 Hrs
Ozone Reaction:
No Ozone Reaction Estimation
Fraction sorbed to airborne particulates (phi):
0.00112 (Junge-Pankow, Mackay avg)
0.000794 (Koa method)
Note: the sorbed fraction may be resistant to atmospheric oxidation
Soil Adsorption Coefficient (KOCWIN v2.00):
Koc : 43.89 L/kg (MCI method)
Log Koc: 1.642 (MCI method)
Koc : 0.00894 L/kg (Kow method)
Log Koc: -2.049 (Kow method)
Aqueous Base/Acid-Catalyzed Hydrolysis (25 deg C) [HYDROWIN v2.00]:
Rate constants can NOT be estimated for this structure!
Bioaccumulation Estimates (BCFBAF v3.00):
Log BCF from regression-based method = 0.500 (BCF = 3.162 L/kg wet-wt)
Log Biotransformation Half-life (HL) = -2.2597 days (HL = 0.0055 days)
Log BCF Arnot-Gobas method (upper trophic) = -0.049 (BCF = 0.8931)
Log BAF Arnot-Gobas method (upper trophic) = -0.049 (BAF = 0.8931)
log Kow used: -2.36 (estimated)
Volatilization from Water:
Henry LC: 2.64E-012 atm-m3/mole (estimated by Bond SAR Method)
Half-Life from Model River: 2.152E+008 hours (8.966E+006 days)
Half-Life from Model Lake : 2.347E+009 hours (9.781E+007 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 5.06e-005 24.5 1000
Water 22.5 360 1000
Soil 77.4 720 1000
Sediment 0.0819 3.24e+003 0
Persistence Time: 713 hr