The name of “Feldspar” refers to group of Aluminum Silicate of potassium, sodium and calcium. The chief use of Feldspar is in the Ceramic and Glass Industries. Smaller quantities are used in the manufacturing of Tiles, Whiteware, and Sanitaryware. Other uses of Feldspar include Catalysts, Acid resistant and Decorative Stone as a flux or binding agent in certain scanning Soaps and artificial teeth.

Silica SiO2 66% (+/- 1%) 68% (+/- 1%)
Alumina Al2O3 18% (+/- 0.5%) 17% (+/- 0.5%)
Potassium Oxide K2O 12.8% (+/- 1%) 10% (+/- 1%)
Sodium Oxide Na2O 2% (+/- 1%) 3% (+/- 1%)
Titanium Oxide TiO2 Nil Nil
Calcium Oxide CaO Nil Nil
Magnesium Oxide MgO Nil Nil
Ferric Oxide Fe2O3 0.06% (+/- 0.01%) 0.08% (+/- 0.02%)
Loss on Ignition LOI 0.1% 0.2%

* Above are based on our research as well as research of others. However, this document is not contractual and nothing in it constitutes a warranty (expressed or implied) that the goods described are accurate and fit for a particular purpose of the customer. Purchasers are advised to make their own test to determine the suitability.Potash feldspar is used in various industries.

Silent Features:

  • Best for Ceramic & Sanitary Ware Manufacturing - Application in both Glaze (K2O > 11.5%) & Body (K2O >10.5%) – gives White Firing Colour.
  • Glass Grades – better fluxing from K2O > 10% (total alkalies > 13%), Alumina > 17% for strength, Low Iron Fe2O3 at < 0.5%.
  • High Potash K2O >11% for Flux coated Welding Electrodes.

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