Description

Sodium Orthosilicate is a powerful alkaline chemical compound with significant industrial utility. It serves as a highly effective cleaning agent, degreaser, and metal surface treatment chemical due to its strong saponification and emulsification properties. This product is essential for manufacturers and processors in the detergent, metal finishing, and construction industries seeking robust alkaline solutions.

Application

• Industrial & Institutional (I&I) Cleaning: A key alkaline builder in heavy-duty detergent formulations for degreasing and cleaning industrial equipment, floors, and vehicles.
• Metal Surface Treatment: Used in metal cleaning and phosphating processes to remove oils, greases, and light rust prior to painting or coating.
• Detergent Manufacture: Acts as a builder in powdered and liquid laundry detergents, enhancing cleaning power by softening water and suspending soil.
• Ceramics & Refractories: Employed as a binder and fluxing agent in the production of ceramics, refractory bricks, and other silicate-based materials.
• Water Treatment: Functions as a precipitant and corrosion inhibitor in boiler water and cooling water treatment programs.
• Chemical Intermediate: Serves as a starting material or reactant in the synthesis of other silicate compounds and specialty chemicals.

Basic Information

Product Name	Sodium Orthosilicate
CAS No.	13472-30-5
Molecular Formula	Na4SiO4
Molecular Weight	184.04 g/mol
Synonyms	Tetrasodium orthosilicate; Tetrasodium silicate; Sodium silicate (Na4SiO4); Silicic acid (H4SiO4), tetrasodium salt; Waterglass (specific forms); Soluble glass; Orthosilicic acid tetrasodium salt
EINECS	236-741-3

Quality Control

Our Sodium Orthosilicate is manufactured under strict quality control protocols to ensure batch-to-batch consistency and performance. Quality is verified against established internal specifications for parameters such as assay, alkalinity, and insoluble matter. A Certificate of Analysis (COA) documenting these results is provided with each shipment to guarantee compliance with your technical requirements.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area away from incompatible materials such as strong acids. Due to its hygroscopic (moisture-sensitive) nature, the container must be kept tightly sealed to prevent caking and degradation from atmospheric moisture. Recommended storage temperature is 15-25°C.

Specification

Item	Specification
Appearance	White to off-white powder or granules
Identification (IR)	Conforms
Assay (as Na4SiO4)	≥ 95.0 %
Alkalinity (as Na2O)	Contact for details
SiO2 Content	Contact for details
Loss on Drying	≤ 2.0 %
Water Insoluble Matter	≤ 0.5 %

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