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Buffered Oxide Etchants

Ammonium Fluoride Etching Mixture (17567)

AFW 68-20(48)-12 MOS Puranal

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General Information

  • Grade
    • SemEG

Physical Properties

  • Density
    • 1.110 g/cm3 20 °C
  • Solubility in Water
    • Completely miscible
  • Melting Point/Range
    • No data available
  • pH
    • Acidic
  • Flashpoint
    • Not applicable
  • Odor
    • Odorless
  • Boiling Point/Range
    • > 100 °C 1,013 hPa
  • Color
    • Colorless
  • Physical Form
    • Liquid

Safety Information

  • Chemical Stability
    • Stable under normal conditions.
  • Corrosivity
    • Corrosive to metals
  • Incompatible Materials
    • Corrosive in contact with metals, Contact with strong acids liberates hydrogen fluoride, Glass and silicate-containing materials are attacked
  • Thermal Decomposition
    • No decomposition if used as directed.
  • Ignition Temperature
    • Not applicable

International Transportation

  • Packing Group
    • II
  • Chemical Class
    • 8
  • Harmonized System Code
    • 38249996
  • UN Number
    • 3264

General Information

  • Grade
    • SemEG

Physical Properties

  • Density
    • 1.110 g/cm3 20 °C
  • Solubility in Water
    • Completely miscible
  • Melting Point/Range
    • No data available
  • pH
    • Acidic
  • Flashpoint
    • Not applicable
  • Odor
    • Odorless
  • Boiling Point/Range
    • > 100 °C 1,013 hPa
  • Color
    • Colorless
  • Physical Form
    • Liquid

Safety Information

  • Chemical Stability
    • Stable under normal conditions.
  • Corrosivity
    • Corrosive to metals
  • Incompatible Materials
    • Corrosive in contact with metals, Contact with strong acids liberates hydrogen fluoride, Glass and silicate-containing materials are attacked
  • Thermal Decomposition
    • No decomposition if used as directed.
  • Ignition Temperature
    • Not applicable

International Transportation

  • Packing Group
    • II
  • Chemical Class
    • 8
  • Harmonized System Code
    • 38249996
  • UN Number
    • 3264
  • Grade : SemEG
  • Density : 1.110 g/cm3 20 °C
  • Solubility in Water : Completely miscible
  • Melting Point/Range : No data available
  • pH : Acidic
  • Flashpoint : Not applicable
  • Odor : Odorless
  • Boiling Point/Range : > 100 °C 1,013 hPa
  • Color : Colorless
  • Physical Form : Liquid
  • Chemical Stability : Stable under normal conditions.
  • Corrosivity : Corrosive to metals
  • Incompatible Materials : Corrosive in contact with metals, Contact with strong acids liberates hydrogen fluoride, Glass and silicate-containing materials are attacked
  • Thermal Decomposition : No decomposition if used as directed.
  • Ignition Temperature : Not applicable
  • Packing Group : II
  • Chemical Class : 8
  • Harmonized System Code : 38249996
  • UN Number : 3264
Property
Value
particlecl.acc.to NAS 1638
Max. 2
ammonium fluoride (NH4F)
26.4 - 28.4 %
assay hydrofluoric acid (HF)
9.3 - 10.3 %
residue on ignition (SO4)
Max. 20 ppm
arsenic (As)
Max. 0.1 ppm
calcium (Ca)
Max. 0.5 ppm
cadmium (Cd)
Max. 0.1 ppm
cobalt (Co)
Max. 0.1 ppm
copper (Cu)
Max. 0.1 ppm
iron (Fe)
Max. 1 ppm
potassium (K)
Max. 0.1 ppm
lithium (Li)
Max. 0.1 ppm
magnesium (Mg)
Max. 0.2 ppm
manganese (Mn)
Max. 0.1 ppm
sodium (Na)
Max. 0.5 ppm
nickel (Ni)
Max. 0.1 ppm
lead (Pb)
Max. 0.1 ppm
strontium (Sr)
Max. 0.1 ppm
zinc (Zn)
Max. 0.1 ppm
chloride (Cl)
Max. 4 ppm
phosphate (PO4)
Max. 1 ppm
sulfate (SO4)
Max. 5 ppm