ChemSpider 2D Image | Ethenone | C2H2O

Ethenone

  • Molecular FormulaC2H2O
  • Average mass42.037 Da
  • Monoisotopic mass42.010567 Da
  • ChemSpider ID9643

More details:






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

207-336-9 [EINECS]
463-51-4 [RN]
Ethenon [German] [ACD/IUPAC Name]
Ethenone [ACD/Index Name] [ACD/IUPAC Name] [Wiki]
Éthénone [French] [ACD/IUPAC Name]
Keten [German]
Ketene
oxyethylene
Carbomethene
More...

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

LEP3SM032A [DBID]
HSDB 633 [DBID]
UNII:LEP3SM032A [DBID]
UNII-LEP3SM032A [DBID]

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

Density: 0.7±0.1 g/cm3
Boiling Point: -56.0±0.0 °C at 760 mmHg
Vapour Pressure: 12569.8±0.1 mmHg at 25°C
Enthalpy of Vaporization: 20.2±3.0 kJ/mol
Flash Point: -98.7±13.3 °C
Index of Refraction: 1.304
Molar Refractivity: 11.2±0.3 cm3
#H bond acceptors: 1
#H bond donors: 0
#Freely Rotating Bonds: 0
#Rule of 5 Violations: 0
ACD/LogP: 0.11
ACD/LogD (pH 5.5): 0.26
ACD/BCF (pH 5.5): 1.00
ACD/KOC (pH 5.5): 33.15
ACD/LogD (pH 7.4): 0.26
ACD/BCF (pH 7.4): 1.00
ACD/KOC (pH 7.4): 33.15
Polar Surface Area: 17 Å2
Polarizability: 4.4±0.5 10-24cm3
Surface Tension: 3.5±3.0 dyne/cm
Molar Volume: 59.0±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) =  -0.52

 Boiling Pt, Melting Pt, Vapor Pressure Estimations (MPBPWIN v1.42):
    Boiling Pt (deg C):  -50.16  (Adapted Stein & Brown method)
    Melting Pt (deg C):  -139.04  (Mean or Weighted MP)
    VP(mm Hg,25 deg C):  8.27E+003  (Mean VP of Antoine & Grain methods)

 Water Solubility Estimate from Log Kow (WSKOW v1.41):
    Water Solubility at 25 deg C (mg/L):  3.63e+005
       log Kow used: -0.52 (estimated)
       no-melting pt equation used

 Water Sol Estimate from Fragments:
    Wat Sol (v1.01 est) =  31939 mg/L

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

 Henrys Law Constant (25 deg C) [HENRYWIN v3.10]:
   Bond Method :   Incomplete
   Group Method:   Incomplete
 Henrys LC [VP/WSol estimate using EPI values]:  1.158E-004 atm-m3/mole

 Log Octanol-Air Partition Coefficient (25 deg C) [KOAWIN v1.10]:
  Can Not Estimate (can not calculate HenryLC)

 Probability of Rapid Biodegradation (BIOWIN v4.10):
   Biowin1 (Linear Model)         :   0.7275
   Biowin2 (Non-Linear Model)     :   0.9177
 Expert Survey Biodegradation Results:
   Biowin3 (Ultimate Survey Model):   3.1063  (weeks       )
   Biowin4 (Primary Survey Model) :   3.7871  (days        )
 MITI Biodegradation Probability:
   Biowin5 (MITI Linear Model)    :   0.5995
   Biowin6 (MITI Non-Linear Model):   0.7972
 Anaerobic Biodegradation Probability:
   Biowin7 (Anaerobic Linear Model):  0.6890
 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):  8.11E+005 Pa (6.08E+003 mm Hg)
  Log Koa (): not available
   Kp (particle/gas partition coef. (m3/ug)):
       Mackay model           :  3.7E-012 
       Octanol/air (Koa) model:  not available
   Fraction sorbed to airborne particulates (phi):
       Junge-Pankow model     :  1.34E-010 
       Mackay model           :  2.96E-010 
       Octanol/air (Koa) model:  not available

 Atmospheric Oxidation (25 deg C) [AopWin v1.92]:
   Hydroxyl Radicals Reaction:
      OVERALL OH Rate Constant =  51.4000 E-12 cm3/molecule-sec
      Half-Life =     0.208 Days (12-hr day; 1.5E6 OH/cm3)
      Half-Life =     2.497 Hrs
   Ozone Reaction:
      OVERALL Ozone Rate Constant =     0.008750 E-17 cm3/molecule-sec
      Half-Life =   130.971 Days (at 7E11 mol/cm3)
   Fraction sorbed to airborne particulates (phi): 2.15E-010 (Junge,Mackay)
    Note: the sorbed fraction may be resistant to atmospheric oxidation

 Soil Adsorption Coefficient (PCKOCWIN v1.66):
      Koc    :  1.498
      Log Koc:  0.176 

 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: -0.52 (estimated)

 Volatilization from Water:
    Henry LC:  0.000116 atm-m3/mole  (calculated from VP/WS)
    Half-Life from Model River:      3.939  hours
    Half-Life from Model Lake :      97.34  hours   (4.056 days)

 Removal In Wastewater Treatment:
    Total removal:              35.32  percent
    Total biodegradation:        0.07  percent
    Total sludge adsorption:     1.24  percent
    Total to Air:               34.02  percent
      (using 10000 hr Bio P,A,S)

 Level III Fugacity Model:
           Mass Amount    Half-Life    Emissions
            (percent)        (hr)       (kg/hr)
   Air       5.63            4.99         1000       
   Water     74.7            360          1000       
   Soil      19.6            720          1000       
   Sediment  0.137           3.24e+003    0          
     Persistence Time: 92.9 hr




                    

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