Sodium Silicate (Na2SiO3)

Sodium Silicate (Na2SiO3), commonly known as water glass, is a white, soluble solid or viscous liquid that forms alkaline aqueous solutions. It consists of sodium oxide and silica in a variable ratio and forms a glassy, non-crystalline material. Industrially, it is typically supplied as an aqueous solution with concentrations ranging from 20% to 40% solids by weight. This chemical is stable under normal conditions but reacts when exposed to strong acids, forming silica gel and releasing heat, which requires cautious handling during mixing and storage. Before ordering, buyers should confirm the required grade and concentration since these parameters impact application performance. Typical dosage rates vary by industry; for example, in water treatment, it is used at concentrations from 10 ppm upward to facilitate particle coagulation. Its alkalinity (pH around 11-13 in solution) makes it suitable for modifying pH and binding metal ions during various manufacturing processes.

Sodium silicate's high alkalinity and binding properties solve critical challenges in water purification by acting as a corrosion inhibitor and promoting particle flocculation, thus improving water clarity and equipment lifespan. In construction materials, its role as a binder and hardening agent increases mechanical strength and water resistance, which translates to longer-lasting infrastructure and reduced maintenance costs. Additionally, its effectiveness in metal surface treatment prevents corrosion, extending service life of metal components. These attributes ensure process reliability and adherence to quality standards in industrial manufacturing and water treatment facilities.