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Hydrofluoric Acid

Hydrofluoric Acid (17780)

50%, Puranal VA

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General Information

  • CAS Number
    • 7664-39-3

Physical Properties

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

Safety Information

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

International Transportation

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

General Information

  • CAS Number
    • 7664-39-3

Physical Properties

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

Safety Information

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

International Transportation

  • Chemical Class
    • 8
  • Harmonized System Code
    • 28111100
  • UN Number
    • 1790
  • Packing Group
    • II
  • Sub Class 1
    • 6.1
  • CAS Number : 7664-39-3
  • Color : Colorless
  • Vapor Pressure : 101 hPa (50 °C)
  • Boiling Point/Range : 105 °C (1,013 hPa)
  • Physical Form : Liquid
  • Melting Point/Range : -35 °C
  • Partition Coefficient : No data available
  • Odor : Stinging
  • pH : Acidic
  • Flashpoint : Not applicable
  • Thermal Decomposition : No decomposition if used as directed.
  • Chemical Stability : Stable under normal conditions.
  • Oxidizing : The substance or mixture is not classified as oxidizing.
  • Flammability : Not applicable
  • Incompatible Materials : Glass and silicate-containing materials are attacked, Gives off hydrogen by reaction with metals, Incompatible with bases
  • Flammable Gas Formation : The substance or mixture does not emit flammable gases in contact with water.
  • Self Ignition : Not auto-flammable
  • Corrosivity : Corrosive to metals
  • Ignition Temperature : Not applicable
  • Chemical Class : 8
  • Harmonized System Code : 28111100
  • UN Number : 1790
  • Packing Group : II
  • Sub Class 1 : 6.1
Property
Value
assay
48.5 - 50.5 %
residue on ignition (SO4)
Max. 5 ppm
silver (Ag)
Max. 0.02 ppm
aluminium (Al)
Max. 0.05 ppm
arsenic, antimony (as As)
Max. 0.03 ppm
gold (Au)
Max. 0.1 ppm
boron (B)
Max. 0.05 ppm
barium (Ba)
Max. 0.1 ppm
beryllium (Be)
Max. 0.02 ppm
bismuth (Bi)
Max. 0.1 ppm
calcium (Ca)
Max. 1 ppm
cadmium (Cd)
Max. 0.05 ppm
cobalt (Co)
Max. 0.02 ppm
chromium (Cr)
Max. 0.1 ppm
copper (Cu)
Max. 0.02 ppm
iron (Fe)
Max. 0.1 ppm
gallium (Ga)
Max. 0.02 ppm
germanium (Ge)
Max. 0.1 ppm
indium (In)
Max. 0.02 ppm
potassium (K)
Max. 0.1 ppm
lithium (Li)
Max. 0.02 ppm
magnesium (Mg)
Max. 0.2 ppm
manganese (Mn)
Max. 0.05 ppm
molybdenum (Mo)
Max. 0.05 ppm
sodium (Na)
Max. 0.2 ppm
nickel (Ni)
Max. 0.02 ppm
lead (Pb)
Max. 0.05 ppm
platinum (Pt)
Max. 0.2 ppm
tin (Sn)
Max. 0.1 ppm
strontium (Sr)
Max. 0.1 ppm
titanium (Ti)
Max. 0.1 ppm
thallium (Tl)
Max. 0.05 ppm
vanadium (V)
Max. 0.05 ppm
zinc (Zn)
Max. 0.1 ppm
zirconium (Zr)
Max. 0.1 ppm
chloride (Cl)
Max. 5 ppm
hexafluorosilic acid(H2SiF6)
Max. 50 ppm
nitrate (NO3)
Max. 10 ppm
phosphate (PO4)
Max. 0.5 ppm
sulfate (SO4)
Max. 1 ppm
sulfite (SO3)
Max. 2 ppm
APHA
Max. 10