Description

Disodium Silicate is an inorganic compound widely used as a versatile industrial chemical. Its primary value lies in its strong alkaline properties and its ability to act as a binder, corrosion inhibitor, and detergent component. This product is essential for manufacturers in sectors such as detergents, construction, ceramics, and water treatment, where its controlled reactivity and binding characteristics are critical for product performance and process efficiency.

Application

• Detergent & Soap Manufacturing: Acts as a builder, enhancing cleaning power by softening water and maintaining optimal alkalinity.
• Construction & Cement: Used as an additive in cement and concrete to accelerate setting time and improve durability.
• Ceramics & Refractories: Serves as a binder in ceramic slips and refractory molds, providing green strength before firing.
• Water Treatment: Functions as a corrosion inhibitor and dispersant in boiler water and cooling tower systems.
• Metal Surface Treatment: Employed in metal cleaning and degreasing formulations, as well as in some metal finishing processes.
• Adhesives & Binders: Used in the production of cardboard, paper, and foundry core binders.
• Textile Processing: Acts as a scouring and bleaching assistant in fabric processing.
• Fireproofing: A component in intumescent coatings and materials for passive fire protection.

Basic Information

Product Name	Disodium Silicate
CAS No.	15457-97-3
Molecular Formula	Na2SiO3
Molecular Weight	122.06 g/mol
Synonyms	Sodium Metasilicate; Sodium Silicate (Metasilicate); Disodium Monosilicate; Sodium Silicon Oxide; Silicic Acid, Disodium Salt; Waterglass (specific forms); Metso; Anhydrous Sodium Metasilicate
EINECS	239-487-1

Quality Control

Our Disodium Silicate is manufactured under strict quality management protocols to ensure batch-to-batch consistency and performance. Quality is verified through comprehensive analytical testing, including assay, impurity profiling, and physical property determination. Certificates of Analysis (COA) documenting compliance with agreed specifications are provided with each shipment. We can support requirements aligned with industrial and technical grade standards.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). This material is hygroscopic (moisture-sensitive) and must be kept in original, moisture-proof packaging. Keep away from strong acids and incompatible materials.

Specification

Item	Specification
Appearance	White granules or powder
Identification (IR)	Conforms
Assay (as Na2SiO3)	≥ 95.0 %
Loss on Drying	≤ 2.0 %
Water Insoluble Matter	≤ 0.5 %
pH (1% solution)	12.0 - 13.0
Bulk Density	Contact for details

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.