Description

Boron Oxide CAS NO 1303-86-2 is a high-purity, vitreous solid that serves as a fundamental source of boron for numerous industrial processes. Its primary value lies in its role as a versatile precursor for synthesizing boron-based compounds and as a key fluxing agent in glass and ceramic formulations. This essential chemical is critical for manufacturers in the glass, ceramic, electronics, and specialty chemical industries seeking to enhance material properties and production efficiency.

Application

• Glass & Ceramics Manufacturing: Acts as a powerful flux to lower melting temperatures and improve the thermal stability, durability, and chemical resistance of borosilicate glass, fiberglass, and ceramic glazes.
• Electronic Materials: Used in the production of dopants for semiconductors and as a component in passivation layers and other dielectric materials.
• Specialty Chemical Synthesis: Serves as a primary starting material for manufacturing various boron compounds, including boron carbide, boron nitride, and metal borides.
• Flame Retardants: Incorporated into formulations for plastics and textiles to impart flame-retardant properties.
• Nuclear Applications: Utilized as a neutron absorber in shielding and control rod materials due to boron's high neutron cross-section.
• Metallurgy: Employed as a flux in metal refining processes and in the production of amorphous metals.
• Laboratory & Research: Used as a reagent in analytical chemistry and materials science research.

Basic Information

Product Name	Boron Oxide
CAS No.	1303-86-2
Molecular Formula	B2O3
Molecular Weight	69.62 g/mol
Synonyms	Boric Anhydride; Diboron Trioxide; Boron Trioxide; Fused Boric Acid; Anhydrous Boric Acid; Boric Oxide; Boria
EINECS	215-125-8

Quality Control

Our Boron Oxide is produced under a stringent quality management system to ensure batch-to-batch consistency and reliability. Each lot undergoes comprehensive analytical testing, including assay and impurity profile analysis, to meet exacting customer specifications. A Certificate of Analysis (COA) documenting purity, physical properties, and safety data is provided with every shipment.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C). Due to its hygroscopic nature, the container must be kept tightly sealed to prevent moisture absorption, which can affect product quality and handling.

Specification

Item	Specification
Appearance	Colorless vitreous solid or white powder
Identification (IR)	Conforms
Assay (B2O3)	≥ 98.0 %
Loss on Drying	≤ 1.0 %
Heavy Metals (as Pb)	≤ 10 ppm
Iron (Fe)	≤ 50 ppm

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