dihydralazine C8H10N6 structure

C8H10N6 structure
Molecular Formula C8H10N6
Average mass 190.205 Da
Density 1.6±0.1 g/cm3
Boiling Point 419.9±28.0 °C at 760 mmHg
Flash Point 207.7±24.0 °C
Molar Refractivity 50.4±0.5 cm3
Polarizability 20.0±0.5 10-24cm3
Surface Tension 78.0±7.0 dyne/cm
Molar Volume 116.8±7.0 cm3

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

Density: 1.6±0.1 g/cm3
Boiling Point: 419.9±28.0 °C at 760 mmHg
Vapour Pressure: 0.0±1.0 mmHg at 25°C
Enthalpy of Vaporization: 67.4±3.0 kJ/mol
Flash Point: 207.7±24.0 °C
Index of Refraction: 1.810
Molar Refractivity: 50.4±0.5 cm3
#H bond acceptors: 6
#H bond donors: 6
#Freely Rotating Bonds: 0
#Rule of 5 Violations: 1
ACD/LogP: 0.73
ACD/LogD (pH 5.5): 0.21
ACD/BCF (pH 5.5): 1.00
ACD/KOC (pH 5.5): 30.94
ACD/LogD (pH 7.4): 0.21
ACD/BCF (pH 7.4): 1.00
ACD/KOC (pH 7.4): 31.11
Polar Surface Area: 101 Å2
Polarizability: 20.0±0.5 10-24cm3
Surface Tension: 78.0±7.0 dyne/cm
Molar Volume: 116.8±7.0 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) = 0.43

 Boiling Pt, Melting Pt, Vapor Pressure Estimations (MPBPWIN v1.42):
 Boiling Pt (deg C): 411.51 (Adapted Stein & Brown method)
 Melting Pt (deg C): 171.27 (Mean or Weighted MP)
 VP(mm Hg,25 deg C): 1.34E-007 (Modified Grain method)
 Subcooled liquid VP: 4.36E-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): 2.098e+004
 log Kow used: 0.43 (estimated)
 no-melting pt equation used

 Water Sol Estimate from Fragments:
 Wat Sol (v1.01 est) = 1e+006 mg/L

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

 Henrys Law Constant (25 deg C) [HENRYWIN v3.10]:
 Bond Method : 6.10E-019 atm-m3/mole
 Group Method: Incomplete
 Henrys LC [VP/WSol estimate using EPI values]: 1.599E-012 atm-m3/mole

 Log Octanol-Air Partition Coefficient (25 deg C) [KOAWIN v1.10]:
 Log Kow used: 0.43 (KowWin est)
 Log Kaw used: -16.603 (HenryWin est)
 Log Koa (KOAWIN v1.10 estimate): 17.033
 Log Koa (experimental database): None

 Probability of Rapid Biodegradation (BIOWIN v4.10):
 Biowin1 (Linear Model) : 0.6570
 Biowin2 (Non-Linear Model) : 0.5763
 Expert Survey Biodegradation Results:
 Biowin3 (Ultimate Survey Model): 2.7788 (weeks )
 Biowin4 (Primary Survey Model) : 3.5733 (days-weeks )
 MITI Biodegradation Probability:
 Biowin5 (MITI Linear Model) : -0.1938
 Biowin6 (MITI Non-Linear Model): 0.0000
 Anaerobic Biodegradation Probability:
 Biowin7 (Anaerobic Linear Model): 0.4544
 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): 0.000581 Pa (4.36E-006 mm Hg)
 Log Koa (Koawin est ): 17.033
 Kp (particle/gas partition coef. (m3/ug)):
 Mackay model : 0.00516 
 Octanol/air (Koa) model: 2.65E+004 
 Fraction sorbed to airborne particulates (phi):
 Junge-Pankow model : 0.157 
 Mackay model : 0.292 
 Octanol/air (Koa) model: 1 

 Atmospheric Oxidation (25 deg C) [AopWin v1.92]:
 Hydroxyl Radicals Reaction:
 OVERALL OH Rate Constant = 71.6853 E-12 cm3/molecule-sec
 Half-Life = 0.149 Days (12-hr day; 1.5E6 OH/cm3)
 Half-Life = 1.790 Hrs
 Ozone Reaction:
 No Ozone Reaction Estimation
 Fraction sorbed to airborne particulates (phi): 0.225 (Junge,Mackay)
 Note: the sorbed fraction may be resistant to atmospheric oxidation

 Soil Adsorption Coefficient (PCKOCWIN v1.66):
 Koc : 2033
 Log Koc: 3.308 

 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: 0.43 (estimated)

 Volatilization from Water:
 Henry LC: 6.1E-019 atm-m3/mole (estimated by Bond SAR Method)
 Half-Life from Model River: 1.324E+015 hours (5.516E+013 days)
 Half-Life from Model Lake : 1.444E+016 hours (6.017E+014 days)

 Removal In Wastewater Treatment:
 Total removal: 1.86 percent
 Total biodegradation: 0.09 percent
 Total sludge adsorption: 1.77 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 1.75e-011 3.58 1000 
 Water 37.6 360 1000 
 Soil 62.3 720 1000 
 Sediment 0.0706 3.24e+003 0 
 Persistence Time: 588 hr




 

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