Sodium Silicate, also known as water glass or liquid glass, is a cornerstone chemical compound with a vast array of industrial applications. Understanding its fundamental chemical properties is key for research scientists and product formulators aiming to leverage its unique capabilities. As a leading chemical supplier, NINGBO INNO PHARMCHEM CO.,LTD. provides high-purity Sodium Silicate that meets rigorous industry standards, making us an ideal partner for businesses requiring this versatile material. This article explores the critical chemical attributes and widespread industrial uses of Sodium Silicate, highlighting why it remains an indispensable component in modern manufacturing.

At its core, Sodium Silicate is an inorganic sodium salt with the general formula Na2xSiyO2y+x, commonly represented by sodium metasilicate (Na2SiO3). The ratio of sodium oxide (Na2O) to silicon dioxide (SiO2) significantly influences its properties. This ratio, often expressed as the 'modulus' (M), can range from 1:2 to 3.75:1. Liquid forms are typically viscous, colorless or slightly cloudy solutions, while solid forms are white powders or glassy solids. A key characteristic is its alkalinity; aqueous solutions generally exhibit a high pH, typically around 13.5 at 20°C for a solution. This alkalinity contributes to its effectiveness as a detergent and its role in pH adjustment in various chemical processes.

The solubility of Sodium Silicate in water is a crucial property, forming alkaline solutions that are stable in neutral and alkaline environments. However, in acidic conditions, it reacts to form silicic acids, which can then dehydrate to form silica gel. This dehydration process is foundational to its use in producing desiccants and its role as a binder. The melting point for solid sodium silicate (sodium metasilicate) is notably high, around 1088°C, indicating its thermal stability.

Industrially, Sodium Silicate's applications are extensive. In the detergent and soap industry, it acts as a builder, water softener, and corrosion inhibitor, enhancing cleaning power. As a binder, it is vital in the production of cardboard, abrasives, and refractory materials. Its adhesive properties are also utilized in applications like binding sand in foundries. In construction, it functions as a concrete hardener, sealant, and fireproofing agent. The paper and pulp industry relies on it for deinking and as a sizing agent.

Furthermore, Sodium Silicate plays a significant role in water treatment, where its flocculant properties help in the removal of impurities. It is also employed in textile processing for dyeing and bleaching, and in the machinery industry for casting. Its utility as a precursor for silica gel and other silicon-based compounds makes it fundamental to the broader chemical industry. For R&D scientists looking to innovate, understanding these applications can spark new product development ideas.

NINGBO INNO PHARMCHEM CO.,LTD. is a premier manufacturer and supplier of Sodium Silicate in China. We offer high-quality products with detailed chemical specifications to support your research and production needs. Whether you are formulating detergents, developing advanced construction materials, or optimizing water treatment processes, our Sodium Silicate is a reliable choice. Contact us today to learn more about our product range, discuss your specific application requirements, and explore bulk purchasing options. We are committed to providing the essential chemical building blocks for your success.