Description

Trisodium Orthoborate is an inorganic sodium salt of orthoboric acid, a key source of borate ions in various industrial processes. This compound is valued for its role as a fluxing agent, corrosion inhibitor, and a versatile boron precursor in material synthesis. It is primarily utilized in industries such as glass and ceramics manufacturing, metallurgy, and as a component in specialty detergents and flame retardants.

Application

• Glass & Ceramics Manufacturing: Acts as a flux to lower melting temperatures and improve the thermal and chemical durability of glass and enamel frits.
• Metallurgy: Used as a component in welding and brazing fluxes to remove oxides and improve joint quality.
• Corrosion Inhibition: Serves as an effective additive in aqueous systems and coolant formulations to protect metal surfaces.
• Flame Retardants: Functions as a synergist in halogen-free flame retardant systems for plastics and textiles.
• Detergents & Cleaners: Employed in industrial and institutional cleaning formulations for its buffering and soil-suspending properties.
• Chemical Synthesis: A crucial boron source for producing other boron compounds, including advanced ceramics and boron alloys.
• Wood Treatment: Used in preservative formulations to protect against fungal decay and insect damage.

Basic Information

Product Name	Trisodium Orthoborate
CAS No.	14312-40-4
Molecular Formula	Na3BO3
Molecular Weight	127.78 g/mol
Synonyms	Sodium Orthoborate; Trisodium Borate; Boron Trisodium Oxide; Sodium Borate (Na3BO3); Orthoboric Acid Trisodium Salt; Sodium Metaborate (common misnomer); Na3BO3
EINECS	238-254-7

Quality Control

Our Trisodium Orthoborate is manufactured under a strict quality management system. Each batch undergoes rigorous analytical testing to ensure it meets precise chemical and physical specifications. A comprehensive Certificate of Analysis (COA), detailing purity, assay, and impurity profiles, is provided with every shipment to guarantee consistency and reliability for your industrial processes.

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). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept tightly sealed after opening to prevent absorption of atmospheric moisture, which can lead to caking and reduced efficacy.

Specification

Item	Specification
Appearance	White crystalline powder
Identification (IR)	Conforms
Assay (as Na3BO3)	≥ 98.0 %
pH (5% solution)	10.0 - 11.5
Loss on Drying	≤ 2.0 %
Water Insoluble Matter	≤ 0.5 %
Chloride (as Cl)	≤ 0.1 %
Sulfate (as SO4)	≤ 0.1 %

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