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Buffered Oxide Etchants

C11-Etch LST (17264)

Puranal

General Information

  • Grade
    • SemEG

Physical Properties

  • Boiling Point/Range
    • 100 °C
  • Color
    • Colorless
  • Density
    • 1.18 g/cm3 (20 °C)
  • Flashpoint
    • Does not flash
  • Melting Point/Range
    • No data available
  • Odor
    • Slight
  • pH
    • 4.0 to 7.0 Undiluted
  • Physical Form
    • Liquid
  • Solubility in Water
    • Completely miscible

Safety Information

  • Chemical Stability
    • Stable under normal conditions.
  • Corrosivity
    • Corrosive to metals
  • Incompatible Materials
    • Glass and silicate-containing materials are attacked, Contact with strong acids liberates hydrogen fluoride, Corrosive in contact with metal
  • Thermal Decomposition
    • No decomposition if used as directed.

International Transportation

  • Chemical Class
    • 8
  • Harmonized System Code
    • 38249996
  • Packing Group
    • II
  • Sub Class 1
    • 6.1
  • UN Number
    • 2922

General Information

  • Grade
    • SemEG

Physical Properties

  • Boiling Point/Range
    • 100 °C
  • Color
    • Colorless
  • Density
    • 1.18 g/cm3 (20 °C)
  • Flashpoint
    • Does not flash
  • Melting Point/Range
    • No data available
  • Odor
    • Slight
  • pH
    • 4.0 to 7.0 Undiluted
  • Physical Form
    • Liquid
  • Solubility in Water
    • Completely miscible

Safety Information

  • Chemical Stability
    • Stable under normal conditions.
  • Corrosivity
    • Corrosive to metals
  • Incompatible Materials
    • Glass and silicate-containing materials are attacked, Contact with strong acids liberates hydrogen fluoride, Corrosive in contact with metal
  • Thermal Decomposition
    • No decomposition if used as directed.

International Transportation

  • Chemical Class
    • 8
  • Harmonized System Code
    • 38249996
  • Packing Group
    • II
  • Sub Class 1
    • 6.1
  • UN Number
    • 2922
  • Grade : SemEG
  • Melting Point/Range : No data available
  • Solubility in Water : Completely miscible
  • Boiling Point/Range : 100 °C
  • Color : Colorless
  • Flashpoint : Does not flash
  • Physical Form : Liquid
  • Density : 1.18 g/cm3 (20 °C)
  • pH : 4.0 to 7.0 Undiluted
  • Odor : Slight
  • Thermal Decomposition : No decomposition if used as directed.
  • Incompatible Materials : Glass and silicate-containing materials are attacked, Contact with strong acids liberates hydrogen fluoride, Corrosive in contact with metal
  • Corrosivity : Corrosive to metals
  • Chemical Stability : Stable under normal conditions.
  • Sub Class 1 : 6.1
  • UN Number : 2922
  • Chemical Class : 8
  • Harmonized System Code : 38249996
  • Packing Group : II
Property
Value
particles > 0,5 µm
Max. 100 P/ml
particles > 1 µm
Max. 10 P/ml
assay hydrofluoric acid (HF)
1.58 - 1.88 %
ammonium fluoride (NH4F)
31.48 - 33.48 %
ammonium dihydrogen phosphate (NH4H2PO4)
14.25 - 17.25 %
surface tension
25.0 - 30.0 mN/m
copper (Cu)
Max. 1 ppm
iron (Fe)
Max. 1 ppm
potassium (K)
Max. 1 ppm
sodium (Na)
Max. 2 ppm