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CAS Number: 3789-85-3
SMILES : C[Si](C)(C)Oc1ccccc1C(=O)O[Si](C)(C)C
CHEM :
MOL FOR: C13 H22 O3 Si2
MOL WT : 282.49
------------------------------ EPI SUMMARY (v4.11) --------------------------
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 v1.68 estimate) = 5.46
Boiling Pt, Melting Pt, Vapor Pressure Estimations (MPBPVP v1.43):
Boiling Pt (deg C): 295.00 (Adapted Stein & Brown method)
Melting Pt (deg C): 61.50 (Mean or Weighted MP)
VP(mm Hg,25 deg C): 0.00116 (Modified Grain method)
VP (Pa, 25 deg C) : 0.155 (Modified Grain method)
Subcooled liquid VP: 0.00254 mm Hg (25 deg C, Mod-Grain method)
: 0.339 Pa (25 deg C, Mod-Grain method)
Water Solubility Estimate from Log Kow (WSKOW v1.42):
Water Solubility at 25 deg C (mg/L): 0.3381
log Kow used: 5.46 (estimated)
no-melting pt equation used
Water Sol Estimate from Fragments:
Wat Sol (v1.01 est) = 176.92 mg/L
ECOSAR Class Program (ECOSAR v1.11):
Class(es) found:
Esters
Alkoxy Silanes
Henrys Law Constant (25 deg C) [HENRYWIN v3.20]:
Bond Method : 7.24E-004 atm-m3/mole (7.33E+001 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: 1.275E-003 atm-m3/mole (1.292E+002 Pa-m3/mole)
VP: 0.00116 mm Hg (source: MPBPVP)
WS: 0.338 mg/L (source: WSKOWWIN)
Log Octanol-Air Partition Coefficient (25 deg C) [KOAWIN v1.10]:
Log Kow used: 5.46 (KowWin est)
Log Kaw used: -1.529 (HenryWin est)
Log Koa (KOAWIN v1.10 estimate): 6.989
Log Koa (experimental database): None
Probability of Rapid Biodegradation (BIOWIN v4.10):
Biowin1 (Linear Model) : 0.6131
Biowin2 (Non-Linear Model) : 0.2684
Expert Survey Biodegradation Results:
Biowin3 (Ultimate Survey Model): 2.5749 (weeks-months)
Biowin4 (Primary Survey Model) : 3.4402 (days-weeks )
MITI Biodegradation Probability:
Biowin5 (MITI Linear Model) : -0.0929
Biowin6 (MITI Non-Linear Model): 0.0065
Anaerobic Biodegradation Probability:
Biowin7 (Anaerobic Linear Model): -0.0231
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): 0.339 Pa (0.00254 mm Hg)
Log Koa (Koawin est ): 6.989
Kp (particle/gas partition coef. (m3/ug)):
Mackay model : 8.86E-006
Octanol/air (Koa) model: 2.39E-006
Fraction sorbed to airborne particulates (phi):
Junge-Pankow model : 0.00032
Mackay model : 0.000708
Octanol/air (Koa) model: 0.000191
Atmospheric Oxidation (25 deg C) [AopWin v1.92]:
Hydroxyl Radicals Reaction:
OVERALL OH Rate Constant = 20.5005 E-12 cm3/molecule-sec
Half-Life = 0.522 Days (12-hr day; 1.5E6 OH/cm3)
Half-Life = 6.261 Hrs
Ozone Reaction:
No Ozone Reaction Estimation
Fraction sorbed to airborne particulates (phi):
0.000514 (Junge-Pankow, Mackay avg)
0.000191 (Koa method)
Note: the sorbed fraction may be resistant to atmospheric oxidation
Soil Adsorption Coefficient (KOCWIN v2.00):
Koc : 1619 L/kg (MCI method)
Log Koc: 3.209 (MCI method)
Koc : 5199 L/kg (Kow method)
Log Koc: 3.716 (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 v3.01):
Log BCF from regression-based method = 3.268 (BCF = 1855 L/kg wet-wt)
Log Biotransformation Half-life (HL) = 1.5245 days (HL = 33.46 days)
Log BCF Arnot-Gobas method (upper trophic) = 3.850 (BCF = 7082)
Log BAF Arnot-Gobas method (upper trophic) = 4.705 (BAF = 5.072e+004)
log Kow used: 5.46 (estimated)
Volatilization from Water:
Henry LC: 0.000724 atm-m3/mole (estimated by Bond SAR Method)
Half-Life from Model River: 3.074 hours
Half-Life from Model Lake : 174.5 hours (7.27 days)
Removal In Wastewater Treatment:
Total removal: 88.28 percent
Total biodegradation: 0.72 percent
Total sludge adsorption: 85.61 percent
Total to Air: 1.95 percent
(using 10000 hr Bio P,A,S)
Level III Fugacity Model:
Mass Amount Half-Life Emissions
(percent) (hr) (kg/hr)
Air 1.04 12.5 1000
Water 11.4 900 1000
Soil 86.6 1.8e+003 1000
Sediment 1.02 8.1e+003 0
Persistence Time: 823 hr