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Buffered Oxide Etchants

Ammonium Fluoride Etching Mixture (17364)

AWF 820-101-79 LST, Puranal (Window Etch with Surfactant)

General Information

  • CAS Number
    • 12125-01-8
  • Grade
    • SemEG

Physical Properties

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

Safety Information

  • Chemical Stability
    • Stable under normal conditions.
  • Corrosivity
    • Corrosive to metals
  • Ignition Temperature
    • Not applicable
  • 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.

International Transportation

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

General Information

  • CAS Number
    • 12125-01-8
  • Grade
    • SemEG

Physical Properties

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

Safety Information

  • Chemical Stability
    • Stable under normal conditions.
  • Corrosivity
    • Corrosive to metals
  • Ignition Temperature
    • Not applicable
  • 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.

International Transportation

  • Chemical Class
    • 8
  • Harmonized System Code
    • 38249996
  • Packing Group
    • II
  • UN Number
    • 3264
  • Grade : SemEG
  • CAS Number : 12125-01-8
  • Melting Point/Range : No data available
  • Solubility in Water : Completely miscible
  • Boiling Point/Range : 100 °C (1,013 hPa)
  • Color : Colorless
  • Flashpoint : Not applicable
  • Physical Form : Liquid
  • Density : 1.10 g/cm3 (20 °C)
  • pH : Acidic
  • Odor : Odorless
  • Thermal Decomposition : No decomposition if used as directed.
  • Ignition Temperature : Not applicable
  • Incompatible Materials : Corrosive in contact with metals, Contact with strong acids liberates hydrogen fluoride, Glass and silicate-containing materials are attacked
  • Corrosivity : Corrosive to metals
  • Chemical Stability : Stable under normal conditions.
  • Chemical Class : 8
  • UN Number : 3264
  • Harmonized System Code : 38249996
  • Packing Group : II
Property
Value
assay hydrofluoric acid (HF)
4.05 - 4.25 %
assay of NH4F
32.5 - 33.5 %
surface tension
20 - 40 mN/m
residue on ignition (SO4)
Max. 10 ppm
silver (Ag)
Max. 20 ppb
aluminium (Al)
Max. 50 ppb
arsenic, antimony (as As)
Max. 10 ppb
gold (Au)
Max. 5 ppb
boron (B)
Max. 50 ppb
barium (Ba)
Max. 10 ppb
beryllium (Be)
Max. 10 ppb
bismuth (Bi)
Max. 20 ppb
calcium (Ca)
Max. 100 ppb
cadmium (Cd)
Max. 10 ppb
cobalt (Co)
Max. 10 ppb
chromium (Cr)
Max. 10 ppb
copper (Cu)
Max. 10 ppb
iron (Fe)
Max. 20 ppb
gallium (Ga)
Max. 10 ppb
indium (In)
Max. 10 ppb
potassium (K)
Max. 50 ppb
lithium (Li)
Max. 10 ppb
magnesium (Mg)
Max. 50 ppb
manganese (Mn)
Max. 10 ppb
molybdenum (Mo)
Max. 10 ppb
sodium (Na)
Max. 25 ppb
nickel (Ni)
Max. 10 ppb
lead (Pb)
Max. 5 ppb
platinum (Pt)
Max. 50 ppb
tin (Sn)
Max. 20 ppb
strontium (Sr)
Max. 10 ppb
titanium (Ti)
Max. 10 ppb
thallium (Tl)
Max. 20 ppb
vanadium (V)
Max. 10 ppb
zinc (Zn)
Max. 35 ppb
zirconium (Zr)
Max. 10 ppb
chloride (Cl)
Max. 2.0 ppm
phosphate (PO4)
Max. 0.50 ppm
sulfate (SO4)
Max. 2.0 ppm