Description

Sodium Trisilicate is an inorganic chemical compound widely utilized as a versatile source of silicate ions. Its primary value lies in its strong alkaline and detergent properties, making it an effective cleaning agent, builder, and corrosion inhibitor. This product is essential for industrial manufacturers in sectors such as detergents, ceramics, and water treatment, where controlled silicate chemistry is required. We supply high-purity Sodium Trisilicate CAS NO 13870-30-9 to meet the stringent demands of global B2B clients.

Application

• Detergent & Cleaner Formulation: Acts as a powerful builder and alkalinity source in industrial and institutional cleaning products.
• Ceramics & Binder Systems: Used as a binder and flux in ceramic slips, molds, and refractory materials.
• Water Treatment: Serves as a corrosion inhibitor and sequestrant in boiler water and cooling tower systems.
• Metal Surface Treatment: Employed in metal cleaning and degreasing processes prior to painting or plating.
• Adhesive & Sealant Production: Functions as a silicate-based binder in specialty cements and acid-resistant coatings.
• Paper & Pulp Industry: Used in de-inking processes and as a dispersant.

Basic Information

Product Name	Sodium Trisilicate
CAS No.	13870-30-9
Molecular Formula	Na2Si3O7 • xH2O
Molecular Weight	Anhydrous: 242.14 g/mol
Synonyms	Sodium Polysilicate; Trisodium Trisilicate; Disodium Trisilicate; Sodium Metasilicate Pentahydrate (related); Water Glass (related); Sodium Silicate Glass; Silicic Acid, Sodium Salt; Sodium Silicon Oxide
EINECS	Contact for details

Quality Control

Our Sodium Trisilicate is manufactured under a strict quality management system. Each batch undergoes rigorous analytical testing to ensure consistency and compliance with agreed specifications. We provide comprehensive Certificates of Analysis (COA) upon request, detailing key parameters such as assay, silicate ratio, and impurity levels. Our quality commitment ensures reliable performance for your industrial processes.

Storage

Preserve in a tightly closed container, protected from light. Due to its hygroscopic (moisture-sensitive) nature, store in a cool, dry, and well-ventilated area at room temperature (15-25°C). Keep the container tightly sealed when not in use to prevent absorption of atmospheric moisture and carbon dioxide, which can affect product quality. Store away from strong acids.

Specification

Item	Specification
Appearance	White to off-white powder or granules
Identification (IR)	Conforms
Assay (as Na2Si3O7)	≥ 95.0%
SiO2 : Na2O Ratio	~2.5 : 1 to 3.2 : 1
Loss on Drying	≤ 5.0%
Water Insoluble Matter	≤ 0.5%
pH (1% Solution)	11.0 - 12.5

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