ChemSpider 2D Image | Carbon diselenide | CSe2

Carbon diselenide

  • Molecular FormulaCSe2
  • Average mass169.931 Da
  • Monoisotopic mass171.833038 Da
  • ChemSpider ID61481

More details:

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

Carbon diselenide [Wiki]
Carbon selenide
Methandiselon [German] [ACD/IUPAC Name]
Methanediselone [ACD/Index Name] [ACD/IUPAC Name]
Méthanedisélone [French] [ACD/IUPAC Name]
208-054-9 [EINECS]
506-80-9 [RN]
Carbon selenide (CSe2)

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

Boiling Point: 126.0±9.0 °C at 760 mmHg
Vapour Pressure: 14.4±0.2 mmHg at 25°C
Enthalpy of Vaporization: 34.9±3.0 kJ/mol
Flash Point: 30.0±18.7 °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: -0.50
ACD/LogD (pH 5.5): 0.03
ACD/BCF (pH 5.5): 1.00
ACD/KOC (pH 5.5): 24.74
ACD/LogD (pH 7.4): 0.03
ACD/BCF (pH 7.4): 1.00
ACD/KOC (pH 7.4): 24.74
Polar Surface Area: 0 Å2
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) =  -0.80

 Boiling Pt, Melting Pt, Vapor Pressure Estimations (MPBPWIN v1.42):
    Boiling Pt (deg C):  139.70  (Adapted Stein & Brown method)
    Melting Pt (deg C):  12.51  (Mean or Weighted MP)
    VP(mm Hg,25 deg C):  12.2  (Mean VP of Antoine & Grain methods)
    MP  (exp database):  -45.5 deg C
    BP  (exp database):  125.5 deg C

 Water Solubility Estimate from Log Kow (WSKOW v1.41):
    Water Solubility at 25 deg C (mg/L):  2.96e+005
       log Kow used: -0.80 (estimated)
       no-melting pt equation used

 Water Sol Estimate from Fragments:
    Wat Sol (v1.01 est) =  26783 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]:  9.216E-006 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)         :   0.6666
   Biowin2 (Non-Linear Model)     :   0.6447
 Expert Survey Biodegradation Results:
   Biowin3 (Ultimate Survey Model):   2.8236  (weeks       )
   Biowin4 (Primary Survey Model) :   3.6026  (days-weeks  )
 MITI Biodegradation Probability:
   Biowin5 (MITI Linear Model)    :   0.2066
   Biowin6 (MITI Non-Linear Model):   0.0847
 Anaerobic Biodegradation Probability:
   Biowin7 (Anaerobic Linear Model):  0.8361
 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):  1.52E+003 Pa (11.4 mm Hg)
  Log Koa (): not available
   Kp (particle/gas partition coef. (m3/ug)):
       Mackay model           :  1.97E-009 
       Octanol/air (Koa) model:  not available
   Fraction sorbed to airborne particulates (phi):
       Junge-Pankow model     :  7.13E-008 
       Mackay model           :  1.58E-007 
       Octanol/air (Koa) model:  not available

 Atmospheric Oxidation (25 deg C) [AopWin v1.92]:
   Hydroxyl Radicals Reaction:
      OVERALL OH Rate Constant = 130.0000 E-12 cm3/molecule-sec
      Half-Life =     0.082 Days (12-hr day; 1.5E6 OH/cm3)
      Half-Life =     0.987 Hrs
   Ozone Reaction:
      No Ozone Reaction Estimation
   Fraction sorbed to airborne particulates (phi): 1.15E-007 (Junge,Mackay)
    Note: the sorbed fraction may be resistant to atmospheric oxidation

 Soil Adsorption Coefficient (PCKOCWIN v1.66):
      Koc    :  23.74
      Log Koc:  1.376 

 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: -0.80 (estimated)

 Volatilization from Water:
    Henry LC:  9.22E-006 atm-m3/mole  (calculated from VP/WS)
    Half-Life from Model River:      84.15  hours   (3.506 days)
    Half-Life from Model Lake :       1027  hours   (42.8 days)

 Removal In Wastewater Treatment:
    Total removal:               2.35  percent
    Total biodegradation:        0.09  percent
    Total sludge adsorption:     1.75  percent
    Total to Air:                0.52  percent
      (using 10000 hr Bio P,A,S)

 Level III Fugacity Model:
           Mass Amount    Half-Life    Emissions
            (percent)        (hr)       (kg/hr)
   Air       0.344           1.97         1000       
   Water     48.9            360          1000       
   Soil      50.7            720          1000       
   Sediment  0.0895          3.24e+003    0          
     Persistence Time: 317 hr


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