ChemSpider 2D Image | Diazene | H2N2


  • Molecular FormulaH2N2
  • Average mass30.029 Da
  • Monoisotopic mass30.021797 Da
  • ChemSpider ID10612167

More details:

Validated by Experts, Validated by Users, Non-Validated, Removed by Users

Diazen [German] [ACD/IUPAC Name]
Diazene [ACD/Index Name] [ACD/IUPAC Name] [Wiki]
Diazène [French] [ACD/IUPAC Name]
3618-05-1 [RN]
二亚胺 [Chinese]

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

Density: 1.2±0.1 g/cm3
Boiling Point:
Vapour Pressure:
Enthalpy of Vaporization:
Flash Point:
Index of Refraction: 1.436
Molar Refractivity: 6.4±0.5 cm3
#H bond acceptors: 2
#H bond donors: 2
#Freely Rotating Bonds: 0
#Rule of 5 Violations: 0
ACD/LogP: -1.00
ACD/LogD (pH 5.5):
ACD/BCF (pH 5.5):
ACD/KOC (pH 5.5):
ACD/LogD (pH 7.4):
ACD/BCF (pH 7.4):
ACD/KOC (pH 7.4):
Polar Surface Area: 48 Å2
Polarizability: 2.5±0.5 10-24cm3
Surface Tension: 63.1±7.0 dyne/cm
Molar Volume: 24.4±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) =  0.58

 Boiling Pt, Melting Pt, Vapor Pressure Estimations (MPBPWIN v1.42):
    Boiling Pt (deg C):  510.19  (Adapted Stein & Brown method)
    Melting Pt (deg C):  204.82  (Mean or Weighted MP)
    VP(mm Hg,25 deg C):  1.89E-010  (Modified Grain method)
    Subcooled liquid VP: 1.52E-008 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):  1.333e+004
       log Kow used: 0.58 (estimated)
       no-melting pt equation used

 Water Sol Estimate from Fragments:
    Wat Sol (v1.01 est) =  28950 mg/L

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

 Henrys Law Constant (25 deg C) [HENRYWIN v3.10]:
   Bond Method :   4.83E-005  atm-m3/mole
   Group Method:   Incomplete
 Henrys LC [VP/WSol estimate using EPI values]:  5.602E-016 atm-m3/mole

 Log Octanol-Air Partition Coefficient (25 deg C) [KOAWIN v1.10]:
  Log Kow used:  0.58  (KowWin est)
  Log Kaw used:  -2.705  (HenryWin est)
      Log Koa (KOAWIN v1.10 estimate):  3.285
      Log Koa (experimental database):  None

 Probability of Rapid Biodegradation (BIOWIN v4.10):
   Biowin1 (Linear Model)         :   0.7332
   Biowin2 (Non-Linear Model)     :   0.9297
 Expert Survey Biodegradation Results:
   Biowin3 (Ultimate Survey Model):   3.1328  (weeks       )
   Biowin4 (Primary Survey Model) :   3.8044  (days        )
 MITI Biodegradation Probability:
   Biowin5 (MITI Linear Model)    :   0.6228
   Biowin6 (MITI Non-Linear Model):   0.8401
 Anaerobic Biodegradation Probability:
   Biowin7 (Anaerobic Linear Model):  0.8361
 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):  2.03E-006 Pa (1.52E-008 mm Hg)
  Log Koa (Koawin est  ): 3.285
   Kp (particle/gas partition coef. (m3/ug)):
       Mackay model           :  1.48 
       Octanol/air (Koa) model:  4.73E-010 
   Fraction sorbed to airborne particulates (phi):
       Junge-Pankow model     :  0.982 
       Mackay model           :  0.992 
       Octanol/air (Koa) model:  3.79E-008 

 Atmospheric Oxidation (25 deg C) [AopWin v1.92]:
   Hydroxyl Radicals Reaction:
      OVERALL OH Rate Constant =   0.0000 E-12 cm3/molecule-sec
      Half-Life =   -------
   Ozone Reaction:
      No Ozone Reaction Estimation
   Fraction sorbed to airborne particulates (phi): 0.987 (Junge,Mackay)
    Note: the sorbed fraction may be resistant to atmospheric oxidation

 Soil Adsorption Coefficient (PCKOCWIN v1.66):
      Koc    :  1.342
      Log Koc:  0.128 

 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: 0.58 (estimated)

 Volatilization from Water:
    Henry LC:  4.83E-005 atm-m3/mole  (estimated by Bond SAR Method)
    Half-Life from Model River:      7.202  hours
    Half-Life from Model Lake :      124.5  hours   (5.188 days)

 Removal In Wastewater Treatment:
    Total removal:               4.35  percent
    Total biodegradation:        0.09  percent
    Total sludge adsorption:     1.73  percent
    Total to Air:                2.53  percent
      (using 10000 hr Bio P,A,S)

 Level III Fugacity Model:
           Mass Amount    Half-Life    Emissions
            (percent)        (hr)       (kg/hr)
   Air       3.13            1e+005       1000       
   Water     35.8            360          1000       
   Soil      61              720          1000       
   Sediment  0.0678          3.24e+003    0          
     Persistence Time: 514 hr


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