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44493 Potassium silicate, anhydrous

CAS Number

Stock No. Size Price ($) Quantity Availability
44493-22 100g 23.70
44493-36 500g 67.00
44493-A3 2kg 162.00
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Potassium silicate, anhydrous


Chemical Properties

SiO2:K2O 2.5:1 wt%
-48 Mesh
Storage & Sensitivity
Ambient temperatures.
Soluble in water.


Potassium silicate is used in binders, carbon electrodes, lead pencils, protective coatings, insoluble pigments, phosphors on television tubes and detergent additives. It acts as a catalyst to make glass, ceramics, welding rods, adhesives, cements, gels, paints, pulp and paper production. Further, it is used in horticulture as a soluble source of potassium and silicon. It acts as a corrosion inhibitor.


Moisture sensitive. Incompatible with strong oxidizing agents.

Literature References

Yao, L.; Naeth, M. A.; Jobson, A. Soil microbial response to waste potassium silicate drilling fluid. J. Environ. Sci. 2015, 29, 189-198.

Nesbitt, H. W.; Bancroft, G. M.; Thibault, Y.; Sawyer, R.; Secco, R. A. Reply to the comment by Malfait on “Spectroscopic studies of oxygen speciation in potassium silicate glasses and melts”. Can. J. Chem. 2015, 93 (5), 581-587.

GHS Hazard and Precautionary Statements

Hazard Statements: H315-H319-H335-H350

Causes skin irritation. Causes serious eye irritation. May cause respiratory irritation. May cause cancer.

Precautionary Statements: P201-P202-P261-P264b-P271-P280i-P281-P302+P352-P304+P340-P305+P351+P338-P308+P313-P332+P313-P337+P313-P362-P501c

Obtain special instructions before use. Do not handle until all safety precautions have been read and understood. Avoid breathing dust/fume/gas/mist/vapours/spray. Wash face, hands and any exposed skin thoroughly after handling Use only outdoors or in a well-ventilated area. Wear eye/face protection. Use personal protective equipment as required. IF ON SKIN: Wash with plenty of soap and water. IF INHALED: Remove to fresh air and keep at rest in a position comfortable for breathing. IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. IF exposed or concerned: Get medical advice/attention. If skin irritation occurs: If eye irritation persists: Take off contaminated clothing and wash before reuse. Dispose of contents/ container to an approved waste disposal plant

Other References

Harmonized Tariff Code


  • A11746

    Lead(II) acetate trihydrate, 99%
  • A16625

    Potassium carbonate, anhydrous, 99%
  • A16690

    Methyl Red
  • 14106

    Sodium metasilicate, anhydrous, tech.
  • 89741

    Calcium silicate, meta, Reagent Grade

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