Pentasilane
[SiH3][SiH2][SiH2][SiH2][SiH3]
InChI=1S/H12Si5/c1-3-5-4-2/h3-5H2,1-2H3
LUXIMSHPDKSEDK-UHFFFAOYSA-N
CSID:123329, http://www.chemspider.com/Chemical-Structure.123329.html (accessed 00:08, Nov 30, 2023)
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) = 1.73 Boiling Pt, Melting Pt, Vapor Pressure Estimations (MPBPWIN v1.42): Boiling Pt (deg C): 409.25 (Adapted Stein & Brown method) Melting Pt (deg C): 145.63 (Mean or Weighted MP) VP(mm Hg,25 deg C): 2.96E-007 (Modified Grain method) Subcooled liquid VP: 4.95E-006 mm Hg (25 deg C, Mod-Grain method) Water Solubility Estimate from Log Kow (WSKOW v1.41): Water Solubility at 25 deg C (mg/L): 2459 log Kow used: 1.73 (estimated) no-melting pt equation used Water Sol Estimate from Fragments: Wat Sol (v1.01 est) = 3.2178e-007 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]: 2.416E-011 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) : 0.6749 Biowin2 (Non-Linear Model) : 0.6991 Expert Survey Biodegradation Results: Biowin3 (Ultimate Survey Model): 2.8621 (weeks ) Biowin4 (Primary Survey Model) : 3.6277 (days-weeks ) MITI Biodegradation Probability: Biowin5 (MITI Linear Model) : 0.2584 Biowin6 (MITI Non-Linear Model): 0.1327 Anaerobic Biodegradation Probability: Biowin7 (Anaerobic Linear Model): 0.8361 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): 0.00066 Pa (4.95E-006 mm Hg) Log Koa (): not available Kp (particle/gas partition coef. (m3/ug)): Mackay model : 0.00455 Octanol/air (Koa) model: not available Fraction sorbed to airborne particulates (phi): Junge-Pankow model : 0.141 Mackay model : 0.267 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): 0.204 (Junge,Mackay) Note: the sorbed fraction may be resistant to atmospheric oxidation Soil Adsorption Coefficient (PCKOCWIN v1.66): Koc : 80.77 Log Koc: 1.907 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 = 0.633 (BCF = 4.294) log Kow used: 1.73 (estimated) Volatilization from Water: Henry LC: 2.42E-011 atm-m3/mole (calculated from VP/WS) Half-Life from Model River: 2.993E+007 hours (1.247E+006 days) Half-Life from Model Lake : 3.265E+008 hours (1.361E+007 days) Removal In Wastewater Treatment: Total removal: 2.06 percent Total biodegradation: 0.09 percent Total sludge adsorption: 1.97 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 0.00058 1e+005 1000 Water 26.1 360 1000 Soil 73.8 720 1000 Sediment 0.0718 3.24e+003 0 Persistence Time: 678 hr
Click to predict properties on the Chemicalize site
Advertisement
Spotlight