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Buffered Oxide Etchants

Ammonium Fluoride Etching Mixture (17070)

AWF 962-35-3 Puranal

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General Information

  • Grade
    • SemEG

Physical Properties

  • Flashpoint
    • Not applicable
  • Boiling Point/Range
    • > 100 °C 1,013 hPa
  • Color
    • Colorless
  • Partition Coefficient
    • No data available
  • Physical Form
    • Liquid
  • Odor
    • Odorless
  • Melting Point/Range
    • No data available
  • Density
    • 1.11 g/cm3 20 °C
  • Solubility in Water
    • Completely miscible
  • pH
    • 6.2 to 7.0 20 °C

Safety Information

  • Corrosivity
    • Not corrosive to metals
  • Chemical Stability
    • Stable under normal conditions.
  • Incompatible Materials
    • Glass and silicate-containing materials are attacked, Contact with strong acids liberates hydrogen fluoride, Corrosive in contact with metal
  • Ignition Temperature
    • Not applicable

International Transportation

  • Harmonized System Code
    • 38249996
  • Packing Group
    • III
  • Chemical Class
    • 6.1
  • UN Number
    • 3287

General Information

  • Grade
    • SemEG

Physical Properties

  • Flashpoint
    • Not applicable
  • Boiling Point/Range
    • > 100 °C 1,013 hPa
  • Color
    • Colorless
  • Partition Coefficient
    • No data available
  • Physical Form
    • Liquid
  • Odor
    • Odorless
  • Melting Point/Range
    • No data available
  • Density
    • 1.11 g/cm3 20 °C
  • Solubility in Water
    • Completely miscible
  • pH
    • 6.2 to 7.0 20 °C

Safety Information

  • Corrosivity
    • Not corrosive to metals
  • Chemical Stability
    • Stable under normal conditions.
  • Incompatible Materials
    • Glass and silicate-containing materials are attacked, Contact with strong acids liberates hydrogen fluoride, Corrosive in contact with metal
  • Ignition Temperature
    • Not applicable

International Transportation

  • Harmonized System Code
    • 38249996
  • Packing Group
    • III
  • Chemical Class
    • 6.1
  • UN Number
    • 3287
  • Grade : SemEG
  • Flashpoint : Not applicable
  • Boiling Point/Range : > 100 °C 1,013 hPa
  • Color : Colorless
  • Partition Coefficient : No data available
  • Physical Form : Liquid
  • Odor : Odorless
  • Melting Point/Range : No data available
  • Density : 1.11 g/cm3 20 °C
  • Solubility in Water : Completely miscible
  • pH : 6.2 to 7.0 20 °C
  • Corrosivity : Not corrosive to metals
  • Chemical Stability : Stable under normal conditions.
  • Incompatible Materials : Glass and silicate-containing materials are attacked, Contact with strong acids liberates hydrogen fluoride, Corrosive in contact with metal
  • Ignition Temperature : Not applicable
  • Harmonized System Code : 38249996
  • Packing Group : III
  • Chemical Class : 6.1
  • UN Number : 3287
Property
Value
ammonium fluoride (NH4F)
38.0 - 39.0 %
assay hydrofluoric acid (HF)
0.167 - 0.187 %
silver (Ag)
Max. 0.05 ppm
aluminium (Al)
Max. 0.5 ppm
arsenic (As)
Max. 0.05 ppm
gold (Au)
Max. 0.05 ppm
barium (Ba)
Max. 0.1 ppm
beryllium (Be)
Max. 0.05 ppm
bismuth (Bi)
Max. 0.05 ppm
calcium (Ca)
Max. 0.5 ppm
cadmium (Cd)
Max. 0.1 ppm
cobalt (Co)
Max. 0.05 ppm
chromium (Cr)
Max. 0.1 ppm
copper (Cu)
Max. 0.1 ppm
iron (Fe)
Max. 0.5 ppm
indium (In)
Max. 0.05 ppm
potassium (K)
Max. 0.1 ppm
lithium (Li)
Max. 0.1 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. 0.05 ppm
lead (Pb)
Max. 0.1 ppm
platinum (Pt)
Max. 0.05 ppm
antimony (Sb)
Max. 0.05 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
zinc (Zn)
Max. 0.1 ppm
zirconium (Zr)
Max. 0.05 ppm
vanadium (V)
Max. 0.1 ppm
chloride (Cl)
Max. 5.0 ppm
nitrate (NO3)
Max. 10.0 ppm
phosphate (PO4)
Max. 0.2 ppm
sulfate (SO4)
Max. 1.0 ppm