Potassium Silicate

Potassium silicate (K₂SiO₃) is a highly versatile potassium-based chemical widely used in agriculture, construction, water treatment, and chemical processing. Known for its alkalinity, binding properties, and ability to improve durability, potassium silicate serves as a critical raw material and additive in numerous industrial and specialty formulations. Its unique chemistry provides benefits such as corrosion resistance, pH regulation, and improved product stability, making it indispensable across multiple markets.

In agriculture, potassium silicate is valued as a source of soluble potassium and silicon, strengthening plant cell walls and enhancing resistance to pests, diseases, and environmental stress. In construction and coatings, it functions as a durable binder, fire retardant, and corrosion inhibitor, improving the longevity and performance of concrete, plasters, and protective coatings. It is also used in welding rods, detergents, refractories, and water treatment solutions, where its stability and effectiveness enhance processing efficiency. With its broad functionality, cost-effectiveness, and sustainability, potassium silicate remains an essential material across industries including agriculture, construction, coatings, water treatment, and specialty chemical manufacturing.

Synonyms: Water glass (potassium), Potassium metasilicate, K₂SiO₃

Characteristics:

IUPAC Name: Dipotassium; oxido-[oxido(oxo)silyl]oxy-oxosilane

CAS Number: 1312-76-1

UN Number: Varies

Recommended Use / Industries:

• Adhesives and binders
• Agriculture (foliar sprays, fertilizers)
• Fire-resistant coatings
• Concrete and construction products