Try beta.chemspider
2,2,4,4,6,6,8,8-Octamethyl-1,3,5,7,2,4,6,8-tetroxatetrasilocane
C[Si]1(O[Si](O[Si](O[Si](O1)(C)C)(C)C)(C)C)C
InChI=1S/C8H24O4Si4/c1-13(2)9-14(3,4)11-16(7,8)12-15(5,6)10-13/h1-8H3
HMMGMWAXVFQUOA-UHFFFAOYSA-N
CSID:10696, http://www.chemspider.com/Chemical-Structure.10696.html (accessed 13:50, Jun 14, 2024)
Validated by Experts, Validated by Users, Non-Validated, Removed by Users
Predicted data is generated using the ACD/Labs Percepta Platform - PhysChem Module, version: 14.00
Predicted data is generated using the US Environmental Protection Agency�s EPISuite
Log Octanol-Water Partition Coef (SRC): Log Kow (KOWWIN v1.67 estimate) = 5.09 Log Kow (Exper. database match) = 5.10 Exper. Ref: TSCATS Boiling Pt, Melting Pt, Vapor Pressure Estimations (MPBPWIN v1.42): Boiling Pt (deg C): 159.41 (Adapted Stein & Brown method) Melting Pt (deg C): 1.78 (Mean or Weighted MP) VP(mm Hg,25 deg C): 1.18 (Mean VP of Antoine & Grain methods) MP (exp database): 17.5 deg C BP (exp database): 175.8 deg C VP (exp database): 1.05E+00 mm Hg at 25 deg C Water Solubility Estimate from Log Kow (WSKOW v1.41): Water Solubility at 25 deg C (mg/L): 0.05475 log Kow used: 5.10 (expkow database) no-melting pt equation used Water Sol (Exper. database match) = 0.005 mg/L (25 deg C) Exper. Ref: DOW CORNING (1987) Water Sol Estimate from Fragments: Wat Sol (v1.01 est) = 0.17229 mg/L Wat Sol (Exper. database match) = 0.01 Exper. Ref: DOW CORNING (1987) ECOSAR Class Program (ECOSAR v0.99h): Class(es) found: Neutral Organics Henrys Law Constant (25 deg C) [HENRYWIN v3.10]: Bond Method : 8.72E-002 atm-m3/mole Group Method: Incomplete Exper Database: 1.17E-01 atm-m3/mole Henrys LC [VP/WSol estimate using EPI values]: 8.412E+000 atm-m3/mole Log Octanol-Air Partition Coefficient (25 deg C) [KOAWIN v1.10]: Log Kow used: 5.10 (exp database) Log Kaw used: 0.680 (exp database) Log Koa (KOAWIN v1.10 estimate): 4.420 Log Koa (experimental database): None Probability of Rapid Biodegradation (BIOWIN v4.10): Biowin1 (Linear Model) : 0.6063 Biowin2 (Non-Linear Model) : 0.2309 Expert Survey Biodegradation Results: Biowin3 (Ultimate Survey Model): 2.5437 (weeks-months) Biowin4 (Primary Survey Model) : 3.4198 (days-weeks ) MITI Biodegradation Probability: Biowin5 (MITI Linear Model) : -0.1670 Biowin6 (MITI Non-Linear Model): 0.0028 Anaerobic Biodegradation Probability: Biowin7 (Anaerobic Linear Model): 0.1995 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): 140 Pa (1.05 mm Hg) Log Koa (Koawin est ): 4.420 Kp (particle/gas partition coef. (m3/ug)): Mackay model : 2.14E-008 Octanol/air (Koa) model: 6.46E-009 Fraction sorbed to airborne particulates (phi): Junge-Pankow model : 7.74E-007 Mackay model : 1.71E-006 Octanol/air (Koa) model: 5.17E-007 Atmospheric Oxidation (25 deg C) [AopWin v1.92]: Hydroxyl Radicals Reaction: OVERALL OH Rate Constant = 1.1968 E-12 cm3/molecule-sec Half-Life = 8.937 Days (12-hr day; 1.5E6 OH/cm3) Half-Life = 107.246 Hrs Ozone Reaction: No Ozone Reaction Estimation Fraction sorbed to airborne particulates (phi): 1.24E-006 (Junge,Mackay) Note: the sorbed fraction may be resistant to atmospheric oxidation Soil Adsorption Coefficient (PCKOCWIN v1.66): Koc : 1.796E+004 Log Koc: 4.254 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 = 3.227 (BCF = 1687) log Kow used: 5.10 (expkow database) Volatilization from Water: Henry LC: 0.117 atm-m3/mole (Henry experimental database) Half-Life from Model River: 1.766 hours Half-Life from Model Lake : 163.7 hours (6.82 days) Removal In Wastewater Treatment (recommended maximum 95%): Total removal: 98.55 percent Total biodegradation: 0.19 percent Total sludge adsorption: 52.15 percent Total to Air: 46.21 percent (using 10000 hr Bio P,A,S) Level III Fugacity Model: Mass Amount Half-Life Emissions (percent) (hr) (kg/hr) Air 6.8 254 1000 Water 9.78 900 1000 Soil 55.7 1.8e+003 1000 Sediment 27.7 8.1e+003 0 Persistence Time: 780 hr
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