methyldimethoxysilane C3H10O2Si structure

C3H10O2Si structure
Molecular Formula C3H10O2Si
Average mass 106.196 Da
Density
Boiling Point 33.8±9.0 °C at 760 mmHg
Flash Point -25.8±18.7 °C
Molar Refractivity
Polarizability
Surface Tension
Molar Volume

Predicted data is generated using the ACD/Labs Percepta Platform – PhysChem Module

Density:
Boiling Point: 33.8±9.0 °C at 760 mmHg
Vapour Pressure: 554.3±0.1 mmHg at 25°C
Enthalpy of Vaporization: 26.7±3.0 kJ/mol
Flash Point: -25.8±18.7 °C
Index of Refraction:
Molar Refractivity:
#H bond acceptors: 2
#H bond donors: 0
#Freely Rotating Bonds: 2
#Rule of 5 Violations: 0
ACD/LogP: 2.65
ACD/LogD (pH 5.5): 1.23
ACD/BCF (pH 5.5): 5.05
ACD/KOC (pH 5.5): 110.90
ACD/LogD (pH 7.4): 1.23
ACD/BCF (pH 7.4): 5.05
ACD/KOC (pH 7.4): 110.90
Polar Surface Area: 18 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) = 1.31

 Boiling Pt, Melting Pt, Vapor Pressure Estimations (MPBPWIN v1.42):
 Boiling Pt (deg C): -8.26 (Adapted Stein & Brown method)
 Melting Pt (deg C): -22.39 (Mean or Weighted MP)
 VP(mm Hg,25 deg C): 2.46E+003 (Mean VP of Antoine & Grain methods)

 Water Solubility Estimate from Log Kow (WSKOW v1.41):
 Water Solubility at 25 deg C (mg/L): 8471
 log Kow used: 1.31 (estimated)
 no-melting pt equation used

 Water Sol Estimate from Fragments:
 Wat Sol (v1.01 est) = 46732 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]: 1.254E-002 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) : 0.1452
 Biowin2 (Non-Linear Model) : 0.0249
 Expert Survey Biodegradation Results:
 Biowin3 (Ultimate Survey Model): 2.3281 (weeks-months)
 Biowin4 (Primary Survey Model) : 3.2342 (weeks )
 MITI Biodegradation Probability:
 Biowin5 (MITI Linear Model) : 0.5991
 Biowin6 (MITI Non-Linear Model): 0.6585
 Anaerobic Biodegradation Probability:
 Biowin7 (Anaerobic Linear Model): -0.1666
 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): 3.19E+005 Pa (2.39E+003 mm Hg)
 Log Koa (): not available
 Kp (particle/gas partition coef. (m3/ug)):
 Mackay model : 9.41E-012 
 Octanol/air (Koa) model: not available
 Fraction sorbed to airborne particulates (phi):
 Junge-Pankow model : 3.4E-010 
 Mackay model : 7.53E-010 
 Octanol/air (Koa) model: not available

 Atmospheric Oxidation (25 deg C) [AopWin v1.92]:
 Hydroxyl Radicals Reaction:
 OVERALL OH Rate Constant = 0.0000 E-12 cm3/molecule-sec
 Half-Life = -------
 Ozone Reaction:
 No Ozone Reaction Estimation
 Fraction sorbed to airborne particulates (phi): 5.47E-010 (Junge,Mackay)
 Note: the sorbed fraction may be resistant to atmospheric oxidation

 Soil Adsorption Coefficient (PCKOCWIN v1.66):
 Koc : 130.8
 Log Koc: 2.117 

 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 = 0.311 (BCF = 2.045)
 log Kow used: 1.31 (estimated)

 Volatilization from Water:
 Henry LC: 0.0125 atm-m3/mole (calculated from VP/WS)
 Half-Life from Model River: 1.1 hours
 Half-Life from Model Lake : 98.41 hours (4.1 days)

 Removal In Wastewater Treatment:
 Total removal: 94.03 percent
 Total biodegradation: 0.02 percent
 Total sludge adsorption: 0.39 percent
 Total to Air: 93.62 percent
 (using 10000 hr Bio P,A,S)

 Level III Fugacity Model:
 Mass Amount Half-Life Emissions
 (percent) (hr) (kg/hr)
 Air 51.7 1e+005 1000 
 Water 47.2 900 1000 
 Soil 1.01 1.8e+003 1000 
 Sediment 0.109 8.1e+003 0 
 Persistence Time: 166 hr




 

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