ChemSpider 2D Image | 1,4-Pentadiyne | C5H4

1,4-Pentadiyne

  • Molecular FormulaC5H4
  • Average mass64.085 Da
  • Monoisotopic mass64.031303 Da
  • ChemSpider ID124473

More details:

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

1,4-Pentadiin [German] [ACD/IUPAC Name]
1,4-Pentadiyne [ACD/Index Name] [ACD/IUPAC Name]
1,4-Pentadiyne [French] [ACD/Index Name] [ACD/IUPAC Name]
Penta-1,4-diyne
1,4-Pentadiyne (7CI, 8CI, 9CI)
24442-69-1 [RN]
MFCD00041599

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

Density: 0.8±0.1 g/cm3
Boiling Point: 61.1±23.0 °C at 760 mmHg
Vapour Pressure: 200.5±0.0 mmHg at 25°C
Enthalpy of Vaporization: 29.1±0.8 kJ/mol
Flash Point: -29.0±6.9 °C
Index of Refraction: 1.444
Molar Refractivity: 20.9±0.3 cm3
#H bond acceptors: 0
#H bond donors: 0
#Freely Rotating Bonds: 2
#Rule of 5 Violations: 0
ACD/LogP: 1.08
ACD/LogD (pH 5.5): 1.24
ACD/BCF (pH 5.5): 5.15
ACD/KOC (pH 5.5): 112.55
ACD/LogD (pH 7.4): 1.24
ACD/BCF (pH 7.4): 5.15
ACD/KOC (pH 7.4): 112.55
Polar Surface Area: 0 Å2
Polarizability: 8.3±0.5 10-24cm3
Surface Tension: 33.5±3.0 dyne/cm
Molar Volume: 78.6±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) =  1.25

 Boiling Pt, Melting Pt, Vapor Pressure Estimations (MPBPWIN v1.42):
    Boiling Pt (deg C):  64.02  (Adapted Stein & Brown method)
    Melting Pt (deg C):  -54.70  (Mean or Weighted MP)
    VP(mm Hg,25 deg C):  180  (Mean VP of Antoine & Grain methods)

 Water Solubility Estimate from Log Kow (WSKOW v1.41):
    Water Solubility at 25 deg C (mg/L):  3377
       log Kow used: 1.25 (estimated)
       no-melting pt equation used

 Water Sol Estimate from Fragments:
    Wat Sol (v1.01 est) =  2439.2 mg/L

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

 Henrys Law Constant (25 deg C) [HENRYWIN v3.10]:
   Bond Method :   3.51E-003  atm-m3/mole
   Group Method:   Incomplete
 Henrys LC [VP/WSol estimate using EPI values]:  4.495E-003 atm-m3/mole

 Log Octanol-Air Partition Coefficient (25 deg C) [KOAWIN v1.10]:
  Log Kow used:  1.25  (KowWin est)
  Log Kaw used:  -0.843  (HenryWin est)
      Log Koa (KOAWIN v1.10 estimate):  2.093
      Log Koa (experimental database):  None

 Probability of Rapid Biodegradation (BIOWIN v4.10):
   Biowin1 (Linear Model)         :   0.7170
   Biowin2 (Non-Linear Model)     :   0.8908
 Expert Survey Biodegradation Results:
   Biowin3 (Ultimate Survey Model):   3.0575  (weeks       )
   Biowin4 (Primary Survey Model) :   3.7553  (days        )
 MITI Biodegradation Probability:
   Biowin5 (MITI Linear Model)    :   0.5709
   Biowin6 (MITI Non-Linear Model):   0.7512
 Anaerobic Biodegradation Probability:
   Biowin7 (Anaerobic Linear Model):  0.8621
 Ready Biodegradability Prediction:   YES

 Hydrocarbon Biodegradation (BioHCwin v1.01):
     LOG BioHC Half-Life (days) :   0.5562
     BioHC Half-Life (days)     :   3.5988

 Sorption to aerosols (25 Dec C)[AEROWIN v1.00]:
  Vapor pressure (liquid/subcooled):  2.36E+004 Pa (177 mm Hg)
  Log Koa (Koawin est  ): 2.093
   Kp (particle/gas partition coef. (m3/ug)):
       Mackay model           :  1.27E-010 
       Octanol/air (Koa) model:  3.04E-011 
   Fraction sorbed to airborne particulates (phi):
       Junge-Pankow model     :  4.59E-009 
       Mackay model           :  1.02E-008 
       Octanol/air (Koa) model:  2.43E-009 

 Atmospheric Oxidation (25 deg C) [AopWin v1.92]:
   Hydroxyl Radicals Reaction:
      OVERALL OH Rate Constant =  14.9340 E-12 cm3/molecule-sec
      Half-Life =     0.716 Days (12-hr day; 1.5E6 OH/cm3)
      Half-Life =     8.595 Hrs
   Ozone Reaction:
      OVERALL Ozone Rate Constant =     0.006000 E-17 cm3/molecule-sec
      Half-Life =   191.000 Days (at 7E11 mol/cm3)
   Fraction sorbed to airborne particulates (phi): 7.38E-009 (Junge,Mackay)
    Note: the sorbed fraction may be resistant to atmospheric oxidation

 Soil Adsorption Coefficient (PCKOCWIN v1.66):
      Koc    :  80.77
      Log Koc:  1.907 

 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 = 0.265 (BCF = 1.842)
       log Kow used: 1.25 (estimated)

 Volatilization from Water:
    Henry LC:  0.00351 atm-m3/mole  (estimated by Bond SAR Method)
    Half-Life from Model River:     0.9505  hours   (57.03 min)
    Half-Life from Model Lake :       77.5  hours   (3.229 days)

 Removal In Wastewater Treatment:
    Total removal:              58.71  percent
    Total biodegradation:        0.05  percent
    Total sludge adsorption:     0.93  percent
    Total to Air:               57.72  percent
      (using 10000 hr Bio P,A,S)

 Level III Fugacity Model:
           Mass Amount    Half-Life    Emissions
            (percent)        (hr)       (kg/hr)
   Air       17.3            17.1         1000       
   Water     70.4            360          1000       
   Soil      12.2            720          1000       
   Sediment  0.15            3.24e+003    0          
     Persistence Time: 91.6 hr

Click to predict properties on the Chemicalize site


Advertisement