2-Pentyne
CCC#CC
InChI=1S/C5H8/c1-3-5-4-2/h3H2,1-2H3
NKTDTMONXHODTI-UHFFFAOYSA-N
CSID:11807, http://www.chemspider.com/Chemical-Structure.11807.html (accessed 09:38, Dec 9, 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) = 2.08 Boiling Pt, Melting Pt, Vapor Pressure Estimations (MPBPWIN v1.42): Boiling Pt (deg C): 64.58 (Adapted Stein & Brown method) Melting Pt (deg C): -48.45 (Mean or Weighted MP) VP(mm Hg,25 deg C): 244 (Mean VP of Antoine & Grain methods) MP (exp database): -109.3 deg C BP (exp database): 56.1 deg C VP (exp database): 2.36E+02 mm Hg at 25 deg C Water Solubility Estimate from Log Kow (WSKOW v1.41): Water Solubility at 25 deg C (mg/L): 658.8 log Kow used: 2.08 (estimated) no-melting pt equation used Water Sol Estimate from Fragments: Wat Sol (v1.01 est) = 2173 mg/L ECOSAR Class Program (ECOSAR v0.99h): Class(es) found: Neutral Organics Henrys Law Constant (25 deg C) [HENRYWIN v3.10]: Bond Method : 1.43E-002 atm-m3/mole Group Method: 9.96E-003 atm-m3/mole Henrys LC [VP/WSol estimate using EPI values]: 3.320E-002 atm-m3/mole Log Octanol-Air Partition Coefficient (25 deg C) [KOAWIN v1.10]: Log Kow used: 2.08 (KowWin est) Log Kaw used: -0.233 (HenryWin est) Log Koa (KOAWIN v1.10 estimate): 2.313 Log Koa (experimental database): None Probability of Rapid Biodegradation (BIOWIN v4.10): Biowin1 (Linear Model) : 0.7151 Biowin2 (Non-Linear Model) : 0.8851 Expert Survey Biodegradation Results: Biowin3 (Ultimate Survey Model): 3.0486 (weeks ) Biowin4 (Primary Survey Model) : 3.7495 (days-weeks ) MITI Biodegradation Probability: Biowin5 (MITI Linear Model) : 0.5597 Biowin6 (MITI Non-Linear Model): 0.7364 Anaerobic Biodegradation Probability: Biowin7 (Anaerobic Linear Model): 0.7029 Ready Biodegradability Prediction: YES Hydrocarbon Biodegradation (BioHCwin v1.01): LOG BioHC Half-Life (days) : 0.3624 BioHC Half-Life (days) : 2.3036 Sorption to aerosols (25 Dec C)[AEROWIN v1.00]: Vapor pressure (liquid/subcooled): 3.15E+004 Pa (236 mm Hg) Log Koa (Koawin est ): 2.313 Kp (particle/gas partition coef. (m3/ug)): Mackay model : 9.53E-011 Octanol/air (Koa) model: 5.05E-011 Fraction sorbed to airborne particulates (phi): Junge-Pankow model : 3.44E-009 Mackay model : 7.63E-009 Octanol/air (Koa) model: 4.04E-009 Atmospheric Oxidation (25 deg C) [AopWin v1.92]: Hydroxyl Radicals Reaction: OVERALL OH Rate Constant = 28.2373 E-12 cm3/molecule-sec Half-Life = 0.379 Days (12-hr day; 1.5E6 OH/cm3) Half-Life = 4.545 Hrs Ozone Reaction: OVERALL Ozone Rate Constant = 0.003000 E-17 cm3/molecule-sec Half-Life = 382.000 Days (at 7E11 mol/cm3) Fraction sorbed to airborne particulates (phi): 5.54E-009 (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 = 0.903 (BCF = 7.994) log Kow used: 2.08 (estimated) Volatilization from Water: Henry LC: 0.00996 atm-m3/mole (estimated by Group SAR Method) Half-Life from Model River: 0.8907 hours (53.44 min) Half-Life from Model Lake : 78.92 hours (3.288 days) Removal In Wastewater Treatment: Total removal: 79.70 percent Total biodegradation: 0.03 percent Total sludge adsorption: 0.88 percent Total to Air: 78.79 percent (using 10000 hr Bio P,A,S) Level III Fugacity Model: Mass Amount Half-Life Emissions (percent) (hr) (kg/hr) Air 11.1 9.08 1000 Water 74.1 360 1000 Soil 14.6 720 1000 Sediment 0.286 3.24e+003 0 Persistence Time: 84.4 hr
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