3,7,11,15,19,23-Hexamethylpentacosane C31H64 structure – Flashcards

Flashcard maker : Kenneth Wheeler

Molecular Formula C31H64
Average mass 436.840 Da
Density 0.8±0.1 g/cm3
Boiling Point 489.5±12.0 °C at 760 mmHg
Flash Point 244.6±13.1 °C
Molar Refractivity 145.4±0.3 cm3
Polarizability 57.6±0.5 10-24cm3
Surface Tension 28.2±3.0 dyne/cm
Molar Volume 542.5±3.0 cm3
  • Predicted – ACD/Labs
  • Predicted – EPISuite
  • Predicted – ChemAxon

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

Density: 0.8±0.1 g/cm3
Boiling Point: 489.5±12.0 °C at 760 mmHg
Vapour Pressure: 0.0±0.6 mmHg at 25°C
Enthalpy of Vaporization: 72.7±0.8 kJ/mol
Flash Point: 244.6±13.1 °C
Index of Refraction: 1.449
Molar Refractivity: 145.4±0.3 cm3
#H bond acceptors: 0
#H bond donors: 0
#Freely Rotating Bonds: 22
#Rule of 5 Violations: 1
ACD/LogP: 16.12
ACD/LogD (pH 5.5): 13.91
ACD/BCF (pH 5.5): 1000000.00
ACD/KOC (pH 5.5): 10000000.00
ACD/LogD (pH 7.4): 13.91
ACD/BCF (pH 7.4): 1000000.00
ACD/KOC (pH 7.4): 10000000.00
Polar Surface Area: 0 Å2
Polarizability: 57.6±0.5 10-24cm3
Surface Tension: 28.2±3.0 dyne/cm
Molar Volume: 542.5±3.0 cm3

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

 
 Log Octanol-Water Partition Coef (SRC):
 Log Kow (KOWWIN v1.67 estimate) = 15.12

 Boiling Pt, Melting Pt, Vapor Pressure Estimations (MPBPWIN v1.42):
 Boiling Pt (deg C): 420.09 (Adapted Stein & Brown method)
 Melting Pt (deg C): 85.25 (Mean or Weighted MP)
 VP(mm Hg,25 deg C): 1.78E-006 (Modified Grain method)
 Subcooled liquid VP: 6.73E-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): 6.349e-011
 log Kow used: 15.12 (estimated)
 no-melting pt equation used

 Water Sol Estimate from Fragments:
 Wat Sol (v1.01 est) = 4.3686e-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 : 2.04E+003 atm-m3/mole
 Group Method: 2.87E+004 atm-m3/mole
 Henrys LC [VP/WSol estimate using EPI values]: 1.612E+004 atm-m3/mole

 Log Octanol-Air Partition Coefficient (25 deg C) [KOAWIN v1.10]:
 Log Kow used: 15.12 (KowWin est)
 Log Kaw used: 4.921 (HenryWin est)
 Log Koa (KOAWIN v1.10 estimate): 10.199
 Log Koa (experimental database): None

 Probability of Rapid Biodegradation (BIOWIN v4.10):
 Biowin1 (Linear Model) : 0.5396
 Biowin2 (Non-Linear Model) : 0.0394
 Expert Survey Biodegradation Results:
 Biowin3 (Ultimate Survey Model): 2.2338 (months )
 Biowin4 (Primary Survey Model) : 3.2175 (weeks )
 MITI Biodegradation Probability:
 Biowin5 (MITI Linear Model) : -0.0482
 Biowin6 (MITI Non-Linear Model): 0.0381
 Anaerobic Biodegradation Probability:
 Biowin7 (Anaerobic Linear Model): -0.3538
 Ready Biodegradability Prediction: NO

 Hydrocarbon Biodegradation (BioHCwin v1.01):
 LOG BioHC Half-Life (days) : 2.5894
 BioHC Half-Life (days) : 388.5414

 Sorption to aerosols (25 Dec C)[AEROWIN v1.00]:
 Vapor pressure (liquid/subcooled): 0.000897 Pa (6.73E-006 mm Hg)
 Log Koa (Koawin est ): 10.199
 Kp (particle/gas partition coef. (m3/ug)):
 Mackay model : 0.00334 
 Octanol/air (Koa) model: 0.00388 
 Fraction sorbed to airborne particulates (phi):
 Junge-Pankow model : 0.108 
 Mackay model : 0.211 
 Octanol/air (Koa) model: 0.237 

 Atmospheric Oxidation (25 deg C) [AopWin v1.92]:
 Hydroxyl Radicals Reaction:
 OVERALL OH Rate Constant = 42.4418 E-12 cm3/molecule-sec
 Half-Life = 0.252 Days (12-hr day; 1.5E6 OH/cm3)
 Half-Life = 3.024 Hrs
 Ozone Reaction:
 No Ozone Reaction Estimation
 Fraction sorbed to airborne particulates (phi): 0.159 (Junge,Mackay)
 Note: the sorbed fraction may be resistant to atmospheric oxidation

 Soil Adsorption Coefficient (PCKOCWIN v1.66):
 Koc : 3.025E+008
 Log Koc: 8.481 

 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 = 0.500 (BCF = 3.162)
 log Kow used: 15.12 (estimated)

 Volatilization from Water:
 Henry LC: 2.04E+003 atm-m3/mole (estimated by Bond SAR Method)
 Half-Life from Model River: 2.133 hours
 Half-Life from Model Lake : 198.5 hours (8.272 days)

 Removal In Wastewater Treatment:
 Total removal: 94.04 percent
 Total biodegradation: 0.78 percent
 Total sludge adsorption: 93.26 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 0.0552 6.05 1000 
 Water 1.38 1.44e+003 1000 
 Soil 30 2.88e+003 1000 
 Sediment 68.5 1.3e+004 0 
 Persistence Time: 4.72e+003 hr




 

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