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Hydrofluoric Acid

Hydrofluoric Acid (21736)

50% EG

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General Information

  • CAS Number
    • 7664-39-3

Physical Properties

  • pH
    • Acidic
  • Partition Coefficient
    • No data available
  • Physical Form
    • Liquid
  • Odor
    • Stinging
  • Melting Point/Range
    • -35 °C
  • Color
    • Colorless
  • Boiling Point/Range
    • 105 °C (1,013 hPa)
  • Vapor Pressure
    • 101 hPa (50 °C)
  • Flashpoint
    • Not applicable

Safety Information

  • Self Ignition
    • Not auto-flammable
  • Incompatible Materials
    • Glass and silicate-containing materials are attacked, Gives off hydrogen by reaction with metals, Incompatible with bases
  • Flammability
    • Not applicable
  • Thermal Decomposition
    • No decomposition if used as directed.
  • Flammable Gas Formation
    • The substance or mixture does not emit flammable gases in contact with water.
  • Chemical Stability
    • Stable under normal conditions.
  • Ignition Temperature
    • Not applicable
  • Oxidizing
    • The substance or mixture is not classified as oxidizing.
  • Corrosivity
    • Corrosive to metals

International Transportation

  • UN Number
    • 1790
  • Sub Class 1
    • 6.1
  • Harmonized System Code
    • 28111100
  • Packing Group
    • II
  • Chemical Class
    • 8

General Information

  • CAS Number
    • 7664-39-3

Physical Properties

  • pH
    • Acidic
  • Partition Coefficient
    • No data available
  • Physical Form
    • Liquid
  • Odor
    • Stinging
  • Melting Point/Range
    • -35 °C
  • Color
    • Colorless
  • Boiling Point/Range
    • 105 °C (1,013 hPa)
  • Vapor Pressure
    • 101 hPa (50 °C)
  • Flashpoint
    • Not applicable

Safety Information

  • Self Ignition
    • Not auto-flammable
  • Incompatible Materials
    • Glass and silicate-containing materials are attacked, Gives off hydrogen by reaction with metals, Incompatible with bases
  • Flammability
    • Not applicable
  • Thermal Decomposition
    • No decomposition if used as directed.
  • Flammable Gas Formation
    • The substance or mixture does not emit flammable gases in contact with water.
  • Chemical Stability
    • Stable under normal conditions.
  • Ignition Temperature
    • Not applicable
  • Oxidizing
    • The substance or mixture is not classified as oxidizing.
  • Corrosivity
    • Corrosive to metals

International Transportation

  • UN Number
    • 1790
  • Sub Class 1
    • 6.1
  • Harmonized System Code
    • 28111100
  • Packing Group
    • II
  • Chemical Class
    • 8
  • CAS Number : 7664-39-3
  • pH : Acidic
  • Partition Coefficient : No data available
  • Physical Form : Liquid
  • Odor : Stinging
  • Melting Point/Range : -35 °C
  • Color : Colorless
  • Boiling Point/Range : 105 °C (1,013 hPa)
  • Vapor Pressure : 101 hPa (50 °C)
  • Flashpoint : Not applicable
  • Self Ignition : Not auto-flammable
  • Incompatible Materials : Glass and silicate-containing materials are attacked, Gives off hydrogen by reaction with metals, Incompatible with bases
  • Flammability : Not applicable
  • Thermal Decomposition : No decomposition if used as directed.
  • Flammable Gas Formation : The substance or mixture does not emit flammable gases in contact with water.
  • Chemical Stability : Stable under normal conditions.
  • Ignition Temperature : Not applicable
  • Oxidizing : The substance or mixture is not classified as oxidizing.
  • Corrosivity : Corrosive to metals
  • UN Number : 1790
  • Sub Class 1 : 6.1
  • Harmonized System Code : 28111100
  • Packing Group : II
  • Chemical Class : 8
Property
Value
assay
49 - 51 %
residue on ignition (SO4)
Max. 5 ppm
silver (Ag)
Max. 0.02 ppm
aluminium (Al)
Max. 0.05 ppm
arsenic (As)
Max. 0.03 ppm
gold (Au)
Max. 0.02 ppm
boron (B)
Max. 0.02 ppm
barium (Ba)
Max. 0.1 ppm
beryllium (Be)
Max. 0.01 ppm
bismuth (Bi)
Max. 0.02 ppm
calcium (Ca)
Max. 0.5 ppm
cadmium (Cd)
Max. 0.01 ppm
cobalt (Co)
Max. 0.01 ppm
chromium (Cr)
Max. 0.01 ppm
copper (Cu)
Max. 0.01 ppm
iron (Fe)
Max. 0.1 ppm
gallium (Ga)
Max. 0.02 ppm
indium (In)
Max. 0.02 ppm
potassium (K)
Max. 0.1 ppm
lithium (Li)
Max. 0.02 ppm
magnesium (Mg)
Max. 0.1 ppm
manganese (Mn)
Max. 0.02 ppm
molybdenum (Mo)
Max. 0.01 ppm
sodium (Na)
Max. 0.2 ppm
nickel (Ni)
Max. 0.01 ppm
lead (Pb)
Max. 0.02 ppm
platinum (Pt)
Max. 0.02 ppm
antimony (Sb)
Max. 0.03 ppm
tin (Sn)
Max. 0.02 ppm
strontium (Sr)
Max. 0.02 ppm
titanium (Ti)
Max. 0.1 ppm
thallium (Tl)
Max. 0.02 ppm
vanadium (V)
Max. 0.01 ppm
zinc (Zn)
Max. 0.05 ppm
zirconium (Zr)
Max. 0.01 ppm
chloride (Cl)
Max. 5 ppm
hexafluorosilic acid(H2SiF6)
Max. 50 ppm
nitrate (NO3)
Max. 3 ppm
phosphate (PO4)
Max. 0.5 ppm
sulfate (SO4)
Max. 1 ppm
sulfite (SO3)
Max. 2 ppm
APHA
Max. 10