Hexadecyl acetate C18H36O2 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) = 7.74

 Boiling Pt, Melting Pt, Vapor Pressure Estimations (MPBPWIN v1.42):
 Boiling Pt (deg C): 337.13 (Adapted Stein & Brown method)
 Melting Pt (deg C): 72.49 (Mean or Weighted MP)
 VP(mm Hg,25 deg C): 0.000266 (Modified Grain method)
 MP (exp database): -18.5 deg C

 Water Solubility Estimate from Log Kow (WSKOW v1.41):
 Water Solubility at 25 deg C (mg/L): 0.00371
 log Kow used: 7.74 (estimated)
 no-melting pt equation used

 Water Sol Estimate from Fragments:
 Wat Sol (v1.01 est) = 0.0038124 mg/L

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

 Henrys Law Constant (25 deg C) [HENRYWIN v3.10]:
 Bond Method : 1.23E-002 atm-m3/mole
 Group Method: 1.99E-002 atm-m3/mole
 Henrys LC [VP/WSol estimate using EPI values]: 2.684E-002 atm-m3/mole

 Log Octanol-Air Partition Coefficient (25 deg C) [KOAWIN v1.10]:
 Log Kow used: 7.74 (KowWin est)
 Log Kaw used: -0.299 (HenryWin est)
 Log Koa (KOAWIN v1.10 estimate): 8.039
 Log Koa (experimental database): None

 Probability of Rapid Biodegradation (BIOWIN v4.10):
 Biowin1 (Linear Model) : 0.8947
 Biowin2 (Non-Linear Model) : 0.9926
 Expert Survey Biodegradation Results:
 Biowin3 (Ultimate Survey Model): 3.0090 (weeks )
 Biowin4 (Primary Survey Model) : 3.9353 (days )
 MITI Biodegradation Probability:
 Biowin5 (MITI Linear Model) : 0.9516
 Biowin6 (MITI Non-Linear Model): 0.9623
 Anaerobic Biodegradation Probability:
 Biowin7 (Anaerobic Linear Model): 0.9209
 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): 0.0355 Pa (0.000266 mm Hg)
 Log Koa (Koawin est ): 8.039
 Kp (particle/gas partition coef. (m3/ug)):
 Mackay model : 8.46E-005 
 Octanol/air (Koa) model: 2.69E-005 
 Fraction sorbed to airborne particulates (phi):
 Junge-Pankow model : 0.00305 
 Mackay model : 0.00672 
 Octanol/air (Koa) model: 0.00214 

 Atmospheric Oxidation (25 deg C) [AopWin v1.92]:
 Hydroxyl Radicals Reaction:
 OVERALL OH Rate Constant = 21.5660 E-12 cm3/molecule-sec
 Half-Life = 0.496 Days (12-hr day; 1.5E6 OH/cm3)
 Half-Life = 5.952 Hrs
 Ozone Reaction:
 No Ozone Reaction Estimation
 Fraction sorbed to airborne particulates (phi): 0.00488 (Junge,Mackay)
 Note: the sorbed fraction may be resistant to atmospheric oxidation

 Soil Adsorption Coefficient (PCKOCWIN v1.66):
 Koc : 3.232E+004
 Log Koc: 4.509 

 Aqueous Base/Acid-Catalyzed Hydrolysis (25 deg C) [HYDROWIN v1.67]:
 Total Kb for pH > 8 at 25 deg C : 4.568E-002 L/mol-sec
 Kb Half-Life at pH 8: 175.623 days 
 Kb Half-Life at pH 7: 4.808 years 

 Bioaccumulation Estimates from Log Kow (BCFWIN v2.17):
 Log BCF from regression-based method = 2.297 (BCF = 198)
 log Kow used: 7.74 (estimated)

 Volatilization from Water:
 Henry LC: 0.0199 atm-m3/mole (estimated by Group SAR Method)
 Half-Life from Model River: 1.771 hours
 Half-Life from Model Lake : 160.7 hours (6.698 days)

 Removal In Wastewater Treatment:
 Total removal: 94.04 percent
 Total biodegradation: 0.77 percent
 Total sludge adsorption: 93.00 percent
 Total to Air: 0.27 percent
 (using 10000 hr Bio P,A,S)

 Level III Fugacity Model:
 Mass Amount Half-Life Emissions
 (percent) (hr) (kg/hr)
 Air 0.402 11.9 1000 
 Water 3.81 360 1000 
 Soil 28.3 720 1000 
 Sediment 67.5 3.24e+003 0 
 Persistence Time: 1.23e+003 hr