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Fluorides

Ammonium hydrogen difluoride (01173)

technical, source of fluoride, assay of NH4HF2 min. 95%

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General Information

  • Application
    • Industrial
  • CAS Number
    • 1341-49-7

Physical Properties

  • Odor
    • Stinging
  • Physical Form
    • Flakes
  • Boiling Point/Range
    • Not applicable
  • Color
    • Colorless
  • pH
    • 2 to 3 (20 °C) as aqueous solution
  • Vapor Pressure
    • No data available
  • Melting Point/Range
    • 126 °C (1.013 hPa) Sublimation point

Safety Information

  • Incompatible Materials
    • Contact with strong acids liberates hydrogen fluoride, Glass and silicate-containing materials are attacked
  • Chemical Stability
    • Stable under normal conditions.
  • Thermal Decomposition
    • No decomposition if used as directed.
  • Self Ignition
    • Not auto-flammable
  • Flammability
    • The product is not flammable.

International Transportation

  • Packing Group
    • II
  • Harmonized System Code
    • 2826191000
  • Chemical Class
    • 8
  • UN Number
    • 1727

General Information

  • Application
    • Industrial
  • CAS Number
    • 1341-49-7

Physical Properties

  • Odor
    • Stinging
  • Physical Form
    • Flakes
  • Boiling Point/Range
    • Not applicable
  • Color
    • Colorless
  • pH
    • 2 to 3 (20 °C) as aqueous solution
  • Vapor Pressure
    • No data available
  • Melting Point/Range
    • 126 °C (1.013 hPa) Sublimation point

Safety Information

  • Incompatible Materials
    • Contact with strong acids liberates hydrogen fluoride, Glass and silicate-containing materials are attacked
  • Chemical Stability
    • Stable under normal conditions.
  • Thermal Decomposition
    • No decomposition if used as directed.
  • Self Ignition
    • Not auto-flammable
  • Flammability
    • The product is not flammable.

International Transportation

  • Packing Group
    • II
  • Harmonized System Code
    • 2826191000
  • Chemical Class
    • 8
  • UN Number
    • 1727
  • Application : Industrial
  • CAS Number : 1341-49-7
  • Odor : Stinging
  • Physical Form : Flakes
  • Boiling Point/Range : Not applicable
  • Color : Colorless
  • pH : 2 to 3 (20 °C) as aqueous solution
  • Vapor Pressure : No data available
  • Melting Point/Range : 126 °C (1.013 hPa) Sublimation point
  • Incompatible Materials : Contact with strong acids liberates hydrogen fluoride, Glass and silicate-containing materials are attacked
  • Chemical Stability : Stable under normal conditions.
  • Thermal Decomposition : No decomposition if used as directed.
  • Self Ignition : Not auto-flammable
  • Flammability : The product is not flammable.
  • Packing Group : II
  • Harmonized System Code : 2826191000
  • Chemical Class : 8
  • UN Number : 1727
Property
Value
assay of NH4HF2
Min. 95 %
assay of NH4F
Max. 5 %
water (Karl Fischer)
Max. 0.5 %
iron (Fe)
Max. 0.05 %
heavy metals (as Pb)
Max. 0.02 %
sulfate (SO4)
Max. 0.2 %
sulfite (SO3)
Max. 0.01 %
appearance of a solution with 10 %
Clear