ChemSpider 2D Image | Perchloric acid | HClO4

Perchloric acid

  • Molecular FormulaHClO4
  • Average mass100.459 Da
  • Monoisotopic mass99.956337 Da
  • ChemSpider ID22669

More details:

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

7601-90-3 [RN]
Acide perchlorique [French] [ACD/IUPAC Name]
Acido perclorico [Italian]
Ácido perclórico [Spanish]
acido tetraossoclorico (VII) [Italian]
Chlor(VII)-säure [German]
HClO4 [Formula]
Hyperchloric acid
perchloorzuur [Dutch]
perchlorate d'hydrogène [French]

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

244252_SIAL [DBID]
311413_SIAL [DBID]
  • Experimental Physico-chemical Properties
  • Miscellaneous
    • Appearance:

      colourless odourless liquid Oxford University Chemical Safety Data (No longer updated) More details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

      Stable. Avoid heat. May form explosive peroxides.Incompatible with a wide variety of substances,including organic materials, alcohols, amines, strong acids, strongbases, acid anhydrides, finely powde red metals, strong reducing agents.Contact with wood, paper and other celullose products may lead to explosion, as may contact with a variety of other organic and inorganic materials.This material mus t only be used after a full MSDS datasheet hasbeen consulted and a COSHH assessment made. Oxford University Chemical Safety Data (No longer updated) More details
    • Toxicity:

      ORL/RAT LD50 1100 mg kg-1, SCU-MUS LD50 250 mg kg-1, ORL-DOG LD50 400 mg kg-1 Oxford University Chemical Safety Data (No longer updated) More details
    • Safety:

      10/1/1935 12:00:00 AM Alfa Aesar 35608, 38749
      17-26-36/37/39-45-60 Alfa Aesar 44464
      23-26-36/37/39-45-60 Alfa Aesar 35608, 38749
      23-26-36-45 Alfa Aesar 10983, 33263, 35608, 38749
      5/8/1935 12:00:00 AM Alfa Aesar 10983, 33263, 35608, 38749, 44464
      DANGER: CORROSIVE, burns skin and eyes Alfa Aesar 35608
      DANGER: CORROSIVE, FLAMMABLE, burns skin and eyes Alfa Aesar 35608
      DANGER: OXIDIZER, CORROSIVE, burns skin and eyes Alfa Aesar 10983, 33263, 38749, 44464
      Safety glasses, chemical resistant (nitrile) gloves.Face shield for all but well-tried and predictable small-scale procedures. Oxford University Chemical Safety Data (No longer updated) More details

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

Boiling Point:
Vapour Pressure:
Enthalpy of Vaporization:
Flash Point:
Index of Refraction:
Molar Refractivity:
#H bond acceptors: 4
#H bond donors: 1
#Freely Rotating Bonds: 0
#Rule of 5 Violations:
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: 71 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) =  -4.63

 Boiling Pt, Melting Pt, Vapor Pressure Estimations (MPBPWIN v1.42):
    Boiling Pt (deg C):  492.01  (Adapted Stein & Brown method)
    Melting Pt (deg C):  193.60  (Mean or Weighted MP)
    VP(mm Hg,25 deg C):  5.55E-012  (Modified Grain method)
    Subcooled liquid VP: 3.27E-010 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):  1e+006
       log Kow used: -4.63 (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]:  7.336E-019 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)         :   0.6997
   Biowin2 (Non-Linear Model)     :   0.8295
 Expert Survey Biodegradation Results:
   Biowin3 (Ultimate Survey Model):   2.9772  (weeks       )
   Biowin4 (Primary Survey Model) :   3.7028  (days-weeks  )
 MITI Biodegradation Probability:
   Biowin5 (MITI Linear Model)    :   0.4133
   Biowin6 (MITI Non-Linear Model):   0.4075
 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):  4.36E-008 Pa (3.27E-010 mm Hg)
  Log Koa (): not available
   Kp (particle/gas partition coef. (m3/ug)):
       Mackay model           :  68.8 
       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 =   0.1400 E-12 cm3/molecule-sec
      Half-Life =    76.400 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 = 0.500 (BCF = 3.162)
       log Kow used: -4.63 (estimated)

 Volatilization from Water:
    Henry LC:  7.34E-019 atm-m3/mole  (calculated from VP/WS)
    Half-Life from Model River: 7.999E+014  hours   (3.333E+013 days)
    Half-Life from Model Lake : 8.726E+015  hours   (3.636E+014 days)

 Removal In Wastewater Treatment:
    Total removal:               1.85  percent
    Total biodegradation:        0.09  percent
    Total sludge adsorption:     1.75  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       6.03e-008       1.83e+003    1000       
   Water     39              360          1000       
   Soil      60.9            720          1000       
   Sediment  0.0713          3.24e+003    0          
     Persistence Time: 579 hr


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