Tetraethyl orthosilicate C8H20O4Si structure – Flashcards
Flashcard maker : Joseph Fraser
Contents
| Molecular Formula | C8H20O4Si |
| Average mass | 208.327 Da |
| Density | 0.9±0.1 g/cm3 |
| Boiling Point | 165.5±0.0 °C at 760 mmHg |
| Flash Point | 46.7±0.0 °C |
| Molar Refractivity | 54.8±0.3 cm3 |
| Polarizability | 21.7±0.5 10-24cm3 |
| Surface Tension | 23.5±3.0 dyne/cm |
| Molar Volume | 221.8±3.0 cm3 |
- Experimental data
- Predicted – ACD/Labs
- Predicted – EPISuite
- Predicted – ChemAxon
- Predicted – Mcule
- Experimental Physico-chemical Properties
- Miscellaneous
- Gas Chromatography
Predicted data is generated using the ACD/Labs Percepta Platform – PhysChem Module
| Density: | 0.9±0.1 g/cm3 |
| Boiling Point: | 165.5±0.0 °C at 760 mmHg |
| Vapour Pressure: | 2.5±0.3 mmHg at 25°C |
| Enthalpy of Vaporization: | 38.5±3.0 kJ/mol |
| Flash Point: | 46.7±0.0 °C |
| Index of Refraction: | 1.409 |
| Molar Refractivity: | 54.8±0.3 cm3 |
| #H bond acceptors: | 4 |
| #H bond donors: | 0 |
| #Freely Rotating Bonds: | 8 |
| #Rule of 5 Violations: | 1 |
| ACD/LogP: | 5.10 |
| ACD/LogD (pH 5.5): | 1.77 |
| ACD/BCF (pH 5.5): | 13.05 |
| ACD/KOC (pH 5.5): | 218.81 |
| ACD/LogD (pH 7.4): | 1.77 |
| ACD/BCF (pH 7.4): | 13.05 |
| ACD/KOC (pH 7.4): | 218.81 |
| Polar Surface Area: | 37 Å2 |
| Polarizability: | 21.7±0.5 10-24cm3 |
| Surface Tension: | 23.5±3.0 dyne/cm |
| Molar Volume: | 221.8±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) = 0.04 Boiling Pt, Melting Pt, Vapor Pressure Estimations (MPBPWIN v1.42): Boiling Pt (deg C): 208.30 (Adapted Stein & Brown method) Melting Pt (deg C): 5.75 (Mean or Weighted MP) VP(mm Hg,25 deg C): 1.65 (Mean VP of Antoine & Grain methods) MP (exp database): -82.5 deg C BP (exp database): 168.8 deg C VP (exp database): 1.88E+00 mm Hg at 25 deg C Water Solubility Estimate from Log Kow (WSKOW v1.41): Water Solubility at 25 deg C (mg/L): 3.691e+004 log Kow used: 0.04 (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: Silanes (alkoxy) Henrys Law Constant (25 deg C) [HENRYWIN v3.10]: Bond Method : 1.97E-005 atm-m3/mole Group Method: Incomplete Henrys LC [VP/WSol estimate using EPI values]: 1.225E-005 atm-m3/mole Log Octanol-Air Partition Coefficient (25 deg C) [KOAWIN v1.10]: Log Kow used: 0.04 (KowWin est) Log Kaw used: -3.094 (HenryWin est) Log Koa (KOAWIN v1.10 estimate): 3.134 Log Koa (experimental database): None Probability of Rapid Biodegradation (BIOWIN v4.10): Biowin1 (Linear Model) : 0.6484 Biowin2 (Non-Linear Model) : 0.5126 Expert Survey Biodegradation Results: Biowin3 (Ultimate Survey Model): 2.7388 (weeks-months) Biowin4 (Primary Survey Model) : 3.5472 (days-weeks ) MITI Biodegradation Probability: Biowin5 (MITI Linear Model) : 0.2917 Biowin6 (MITI Non-Linear Model): 0.1554 Anaerobic Biodegradation Probability: Biowin7 (Anaerobic Linear Model): 0.6218 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): 251 Pa (1.88 mm Hg) Log Koa (Koawin est ): 3.134 Kp (particle/gas partition coef. (m3/ug)): Mackay model : 1.2E-008 Octanol/air (Koa) model: 3.34E-010 Fraction sorbed to airborne particulates (phi): Junge-Pankow model : 4.32E-007 Mackay model : 9.57E-007 Octanol/air (Koa) model: 2.67E-008 Atmospheric Oxidation (25 deg C) [AopWin v1.92]: Hydroxyl Radicals Reaction: OVERALL OH Rate Constant = 24.6936 E-12 cm3/molecule-sec Half-Life = 0.433 Days (12-hr day; 1.5E6 OH/cm3) Half-Life = 5.198 Hrs Ozone Reaction: No Ozone Reaction Estimation Fraction sorbed to airborne particulates (phi): 6.95E-007 (Junge,Mackay) Note: the sorbed fraction may be resistant to atmospheric oxidation Soil Adsorption Coefficient (PCKOCWIN v1.66): Koc : 8766 Log Koc: 3.943 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: 0.04 (estimated) Volatilization from Water: Henry LC: 1.97E-005 atm-m3/mole (estimated by Bond SAR Method) Half-Life from Model River: 44.37 hours (1.849 days) Half-Life from Model Lake : 605.1 hours (25.21 days) Removal In Wastewater Treatment: Total removal: 2.92 percent Total biodegradation: 0.09 percent Total sludge adsorption: 1.74 percent Total to Air: 1.08 percent (using 10000 hr Bio P,A,S) Level III Fugacity Model: Mass Amount Half-Life Emissions (percent) (hr) (kg/hr) Air 1.28 10.4 1000 Water 54.5 900 1000 Soil 44.1 1.8e+003 1000 Sediment 0.106 8.1e+003 0 Persistence Time: 472 hr
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