ChemSpider 2D Image | Cyclopropenylidene | C3H2

Cyclopropenylidene

  • Molecular FormulaC3H2
  • Average mass Da
  • Monoisotopic mass Da
  • ChemSpider ID4937408

More details:

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

1,2-Cyclopropadien [German] [ACD/IUPAC Name]
1,2-Cyclopropadiene [ACD/Index Name] [ACD/IUPAC Name]
1,2-Cyclopropadiène [French] [ACD/IUPAC Name]
16165-40-5 [RN]
2-Cyclopropen-1-ylidene
Cyclopropenylidene [Wiki]

Predicted data is generated using the ACD/Labs Percepta Platform - PhysChem Module, version: 14.00

Density:
Boiling Point: -27.3±7.0 °C at 760 mmHg
Vapour Pressure: 4461.7±0.0 mmHg at 25°C
Enthalpy of Vaporization: 21.7±0.8 kJ/mol
Flash Point: -104.1±10.3 °C
Index of Refraction:
Molar Refractivity:
#H bond acceptors: 0
#H bond donors: 0
#Freely Rotating Bonds: 0
#Rule of 5 Violations: 0
ACD/LogP: 1.20
ACD/LogD (pH 5.5): 1.34
ACD/BCF (pH 5.5): 6.15
ACD/KOC (pH 5.5): 127.69
ACD/LogD (pH 7.4): 1.34
ACD/BCF (pH 7.4): 6.15
ACD/KOC (pH 7.4): 127.69
Polar Surface Area: 0 Å2
Polarizability:
Surface Tension:
Molar Volume:

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

                        
 Log Octanol-Water Partition Coef (SRC):
    Log Kow (KOWWIN v1.67 estimate) =  1.49

 Boiling Pt, Melting Pt, Vapor Pressure Estimations (MPBPWIN v1.42):
    Boiling Pt (deg C):  8.51  (Adapted Stein & Brown method)
    Melting Pt (deg C):  -117.67  (Mean or Weighted MP)
    VP(mm Hg,25 deg C):  1.34E+003  (Mean VP of Antoine & Grain methods)

 Water Solubility Estimate from Log Kow (WSKOW v1.41):
    Water Solubility at 25 deg C (mg/L):  1995
       log Kow used: 1.49 (estimated)
       no-melting pt equation used

 Water Sol Estimate from Fragments:
    Wat Sol (v1.01 est) =  869.99 mg/L

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

 Henrys Law Constant (25 deg C) [HENRYWIN v3.10]:
   Bond Method :   2.83E-002  atm-m3/mole
   Group Method:   1.81E-002  atm-m3/mole
 Henrys LC [VP/WSol estimate using EPI values]:  2.009E-002 atm-m3/mole

 Log Octanol-Air Partition Coefficient (25 deg C) [KOAWIN v1.10]:
  Log Kow used:  1.49  (KowWin est)
  Log Kaw used:  0.063  (HenryWin est)
      Log Koa (KOAWIN v1.10 estimate):  1.427
      Log Koa (experimental database):  None

 Probability of Rapid Biodegradation (BIOWIN v4.10):
   Biowin1 (Linear Model)         :   0.7285
   Biowin2 (Non-Linear Model)     :   0.9198
 Expert Survey Biodegradation Results:
   Biowin3 (Ultimate Survey Model):   3.1106  (weeks       )
   Biowin4 (Primary Survey Model) :   3.7899  (days        )
 MITI Biodegradation Probability:
   Biowin5 (MITI Linear Model)    :   0.6251
   Biowin6 (MITI Non-Linear Model):   0.8406
 Anaerobic Biodegradation Probability:
   Biowin7 (Anaerobic Linear Model):  0.5690
 Ready Biodegradability Prediction:   YES

 Hydrocarbon Biodegradation (BioHCwin v1.01):
     LOG BioHC Half-Life (days) :   0.5653
     BioHC Half-Life (days)     :   3.6750

 Sorption to aerosols (25 Dec C)[AEROWIN v1.00]:
  Vapor pressure (liquid/subcooled):  1.79E+005 Pa (1.34E+003 mm Hg)
  Log Koa (Koawin est  ): 1.427
   Kp (particle/gas partition coef. (m3/ug)):
       Mackay model           :  1.68E-011 
       Octanol/air (Koa) model:  6.56E-012 
   Fraction sorbed to airborne particulates (phi):
       Junge-Pankow model     :  6.06E-010 
       Mackay model           :  1.34E-009 
       Octanol/air (Koa) model:  5.25E-010 

 Atmospheric Oxidation (25 deg C) [AopWin v1.92]:
   Hydroxyl Radicals Reaction:
      OVERALL OH Rate Constant =  56.4187 E-12 cm3/molecule-sec
      Half-Life =     0.190 Days (12-hr day; 1.5E6 OH/cm3)
      Half-Life =     2.275 Hrs
   Ozone Reaction:
      OVERALL Ozone Rate Constant =    20.000000 E-17 cm3/molecule-sec
      Half-Life =     0.057 Days (at 7E11 mol/cm3)
      Half-Life =      1.375 Hrs
   Fraction sorbed to airborne particulates (phi): 9.75E-010 (Junge,Mackay)
    Note: the sorbed fraction may be resistant to atmospheric oxidation

 Soil Adsorption Coefficient (PCKOCWIN v1.66):
      Koc    :  26.37
      Log Koc:  1.421 

 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 = 0.445 (BCF = 2.788)
       log Kow used: 1.49 (estimated)

 Volatilization from Water:
    Henry LC:  0.0283 atm-m3/mole  (estimated by Bond SAR Method)
    Half-Life from Model River:      0.659  hours   (39.54 min)
    Half-Life from Model Lake :      60.27  hours   (2.511 days)

 Removal In Wastewater Treatment:
    Total removal:              91.67  percent
    Total biodegradation:        0.02  percent
    Total sludge adsorption:     0.45  percent
    Total to Air:               91.20  percent
      (using 10000 hr Bio P,A,S)

 Level III Fugacity Model:
           Mass Amount    Half-Life    Emissions
            (percent)        (hr)       (kg/hr)
   Air       1.87            1.06         1000       
   Water     94.3            360          1000       
   Soil      3.65            720          1000       
   Sediment  0.223           3.24e+003    0          
     Persistence Time: 65.6 hr

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