Potassium aluminum silicate

CAS Number
1327-44-2
EC Number
215-479-3

What is Potassium aluminum silicate?

Potassium aluminum silicate (CAS 1327-44-2), also known as potassium aluminium silicate, is a naturally occurring mineral compound sourced from aluminosilicate deposits and processed for industrial use.

Where is Potassium aluminum silicate used?

  • Printing and packaging: incorporated into coating formulations to improve ink adhesion
  • Paper and board: enhances surface uniformity
  • Water treatment: coagulation aid and clarifying agent that removes suspended solids and turbidity from process water
  • Oil and gas: component in drilling fluid formulations where controlled viscosity and filtration properties are required
  • Pharmaceuticals: excipient and carrier in solid dosage forms, supporting flow and compaction during tablet production

Commercial specifications

  • particle size distributions tailored to specific processing requirements
  • material meeting USP or Ph. Eur. specifications available for regulated applications
  • bulk and packaged formats standard

Other Names (Synonyms)

Silicic acid, aluminum potassium salt|Potassium aluminium silicate|Aluminum;potassium;dioxido(oxo)silane|Potassium aluminosilicate

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What are the physical properties of Potassium aluminum silicate?

Density 2.560
Color colorless monoclinic crystals, crystalline
Form rod

Which trade and regulatory codes apply to Potassium aluminum silicate?

WGK (Germany) 3
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