ChemSpider 2D Image | Chromic acid | H2CrO4

Chromic acid

  • Molecular FormulaH2CrO4
  • Average mass118.010 Da
  • Monoisotopic mass117.935822 Da
  • ChemSpider ID22834
  • Charge - Charge


More details:






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

Chromic acid [Wiki]
231-801-5 [EINECS]
Chromium, dihydroxydioxo- [ACD/Index Name]
Dihydroxy(dioxo)chrom [German] [ACD/IUPAC Name]
Dihydroxy(dioxo)chrome [French] [ACD/IUPAC Name]
Dihydroxy(dioxo)chromium [ACD/IUPAC Name]
[CrO2(OH)2]
11115-74-5 [RN]
1333-82-0 [RN]
13530-68-2 [RN]
More...

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

AI3-51760 [DBID]
C.I. 77223 [DBID]
Caswell No. 221 [DBID]
CHEBI:33143 [DBID]
EPA Pesticide Chemical Code 021101 [DBID]
HSDB 6769 [DBID]
NSC176337 [DBID]
  • Miscellaneous
    • Appearance:

      coloured oily liquid Oxford University Chemical Safety Data (No longer updated) More details
    • Stability:

      Stable, but strong oxidizer - may be explosive when mixed with combustiblematerial. Hygroscopic. Reacts violently with water and many other materials. Oxford University Chemical Safety Data (No longer updated) More details
    • Safety:

      In general this material should not be used unless no alternative exists. This mixtureof concentrated acid and chromate or dichromate is strongly oxidizing, toxic, corrosive,carcinogenic and very harm ful in the environment. Its use for cleaning glassware is potentially hazardousif the glassware is contaminated with organic materials; safe disposal is difficult. If it mustbe used, gloves, safety gl asses and good ventilation are essential. Determine how thismaterial will be disposed of before starting work - disposal down the sink is NOT an option. Oxford University Chemical Safety Data (No longer updated) More details

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

Density:
Boiling Point:
Vapour Pressure:
Enthalpy of Vaporization:
Flash Point:
Index of Refraction:
Molar Refractivity:
#H bond acceptors: 4
#H bond donors: 2
#Freely Rotating Bonds: 0
#Rule of 5 Violations:
ACD/LogP:
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: 75 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) =  1.93

 Boiling Pt, Melting Pt, Vapor Pressure Estimations (MPBPWIN v1.42):
    Boiling Pt (deg C):  666.25  (Adapted Stein & Brown method)
    Melting Pt (deg C):  290.26  (Mean or Weighted MP)
    VP(mm Hg,25 deg C):  2.61E-019  (Modified Grain method)
    Subcooled liquid VP: 2.31E-016 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):  2298
       log Kow used: 1.93 (estimated)
       no-melting pt equation used

 Water Sol Estimate from Fragments:
    Wat Sol (v1.01 est) =  1e+006 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]:  1.764E-023 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)         :   0.6914
   Biowin2 (Non-Linear Model)     :   0.7913
 Expert Survey Biodegradation Results:
   Biowin3 (Ultimate Survey Model):   2.9384  (weeks       )
   Biowin4 (Primary Survey Model) :   3.6775  (days-weeks  )
 MITI Biodegradation Probability:
   Biowin5 (MITI Linear Model)    :   0.3611
   Biowin6 (MITI Non-Linear Model):   0.2929
 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):  3.08E-014 Pa (2.31E-016 mm Hg)
  Log Koa (): not available
   Kp (particle/gas partition coef. (m3/ug)):
       Mackay model           :  9.74E+007 
       Octanol/air (Koa) model:  not available
   Fraction sorbed to airborne particulates (phi):
       Junge-Pankow model     :  1 
       Mackay model           :  1 
       Octanol/air (Koa) model:  not available

 Atmospheric Oxidation (25 deg C) [AopWin v1.92]:
   Hydroxyl Radicals Reaction:
      OVERALL OH Rate Constant =   0.2800 E-12 cm3/molecule-sec
      Half-Life =    38.200 Days (12-hr day; 1.5E6 OH/cm3)
   Ozone Reaction:
      No Ozone Reaction Estimation
   Fraction sorbed to airborne particulates (phi): 1 (Junge,Mackay)
    Note: the sorbed fraction may be resistant to atmospheric oxidation

 Soil Adsorption Coefficient (PCKOCWIN v1.66):
      Koc    :  48.64
      Log Koc:  1.687 

 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 = 0.785 (BCF = 6.1)
       log Kow used: 1.93 (estimated)

 Volatilization from Water:
    Henry LC:  1.76E-023 atm-m3/mole  (calculated from VP/WS)
    Half-Life from Model River: 3.606E+019  hours   (1.503E+018 days)
    Half-Life from Model Lake : 3.934E+020  hours   (1.639E+019 days)

 Removal In Wastewater Treatment:
    Total removal:               2.19  percent
    Total biodegradation:        0.09  percent
    Total sludge adsorption:     2.09  percent
    Total to Air:                0.00  percent
      (using 10000 hr Bio P,A,S)

 Level III Fugacity Model:
           Mass Amount    Half-Life    Emissions
            (percent)        (hr)       (kg/hr)
   Air       2.81e-006       917          1000       
   Water     23.6            360          1000       
   Soil      76.3            720          1000       
   Sediment  0.0774          3.24e+003    0          
     Persistence Time: 702 hr




                    

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