1,2-Diacetoxypropane C7H12O4 structure – Flashcards

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

Predicted data is generated using the US Environmental Protection Agency’s EPISuite™

 
 Log Octanol-Water Partition Coef (SRC):
 Log Kow (KOWWIN v1.67 estimate) = 0.82

 Boiling Pt, Melting Pt, Vapor Pressure Estimations (MPBPWIN v1.42):
 Boiling Pt (deg C): 152.95 (Adapted Stein & Brown method)
 Melting Pt (deg C): -94.60 (Mean or Weighted MP)
 VP(mm Hg,25 deg C): 0.578 (Mean VP of Antoine & Grain methods)
 BP (exp database): 190.5 deg C

 Water Solubility Estimate from Log Kow (WSKOW v1.41):
 Water Solubility at 25 deg C (mg/L): 1.356e+004
 log Kow used: 0.82 (estimated)
 no-melting pt equation used
 Water Sol (Exper. database match) = 1e+005 mg/L (25 deg C)
 Exper. Ref: BEILSTEIN

 Water Sol Estimate from Fragments:
 Wat Sol (v1.01 est) = 37666 mg/L
 Wat Sol (Exper. database match) = 100000.00
 Exper. Ref: BEILSTEIN

 ECOSAR Class Program (ECOSAR v0.99h):
 Class(es) found:
 Esters

 Henrys Law Constant (25 deg C) [HENRYWIN v3.10]:
 Bond Method : 7.36E-007 atm-m3/mole
 Group Method: 1.38E-007 atm-m3/mole
 Henrys LC [VP/WSol estimate using EPI values]: 8.983E-006 atm-m3/mole

 Log Octanol-Air Partition Coefficient (25 deg C) [KOAWIN v1.10]:
 Log Kow used: 0.82 (KowWin est)
 Log Kaw used: -4.522 (HenryWin est)
 Log Koa (KOAWIN v1.10 estimate): 5.342
 Log Koa (experimental database): None

 Probability of Rapid Biodegradation (BIOWIN v4.10):
 Biowin1 (Linear Model) : 1.0197
 Biowin2 (Non-Linear Model) : 0.9999
 Expert Survey Biodegradation Results:
 Biowin3 (Ultimate Survey Model): 3.1256 (weeks )
 Biowin4 (Primary Survey Model) : 4.0746 (days )
 MITI Biodegradation Probability:
 Biowin5 (MITI Linear Model) : 0.9231
 Biowin6 (MITI Non-Linear Model): 0.9602
 Anaerobic Biodegradation Probability:
 Biowin7 (Anaerobic Linear Model): 0.8012
 Ready Biodegradability Prediction: YES

Hydrocarbon Biodegradation (BioHCwin v1.01):
 Structure incompatible with current estimation method!

 Sorption to aerosols (25 Dec C)[AEROWIN v1.00]:
 Vapor pressure (liquid/subcooled): 70.1 Pa (0.526 mm Hg)
 Log Koa (Koawin est ): 5.342
 Kp (particle/gas partition coef. (m3/ug)):
 Mackay model : 4.28E-008 
 Octanol/air (Koa) model: 5.4E-008 
 Fraction sorbed to airborne particulates (phi):
 Junge-Pankow model : 1.55E-006 
 Mackay model : 3.42E-006 
 Octanol/air (Koa) model: 4.32E-006 

 Atmospheric Oxidation (25 deg C) [AopWin v1.92]:
 Hydroxyl Radicals Reaction:
 OVERALL OH Rate Constant = 5.9076 E-12 cm3/molecule-sec
 Half-Life = 1.811 Days (12-hr day; 1.5E6 OH/cm3)
 Half-Life = 21.726 Hrs
 Ozone Reaction:
 No Ozone Reaction Estimation
 Fraction sorbed to airborne particulates (phi): 2.48E-006 (Junge,Mackay)
 Note: the sorbed fraction may be resistant to atmospheric oxidation

 Soil Adsorption Coefficient (PCKOCWIN v1.66):
 Koc : 10
 Log Koc: 1.000 

 Aqueous Base/Acid-Catalyzed Hydrolysis (25 deg C) [HYDROWIN v1.67]:
 Total Kb for pH > 8 at 25 deg C : 1.567E-001 L/mol-sec
 Kb Half-Life at pH 8: 51.195 days 
 Kb Half-Life at pH 7: 1.402 years 

 Bioaccumulation Estimates from Log Kow (BCFWIN v2.17):
 Log BCF from regression-based method = 0.500 (BCF = 3.162)
 log Kow used: 0.82 (estimated)

 Volatilization from Water:
 Henry LC: 1.38E-007 atm-m3/mole (estimated by Group SAR Method)
 Half-Life from Model River: 5371 hours (223.8 days)
 Half-Life from Model Lake : 5.87E+004 hours (2446 days)

 Removal In Wastewater Treatment:
 Total removal: 1.88 percent
 Total biodegradation: 0.09 percent
 Total sludge adsorption: 1.78 percent
 Total to Air: 0.01 percent
 (using 10000 hr Bio P,A,S)

 Level III Fugacity Model:
 Mass Amount Half-Life Emissions
 (percent) (hr) (kg/hr)
 Air 1.73 43.5 1000 
 Water 39.8 360 1000 
 Soil 58.4 720 1000 
 Sediment 0.0773 3.24e+003 0 
 Persistence Time: 460 hr