Description

Calcium Metaborate Powder Technical is an inorganic salt of boric acid, widely utilized for its fluxing and glass-forming properties. This compound is valued for its ability to lower melting points and enhance the thermal and chemical stability of various materials. It serves as a critical raw material for manufacturers in the ceramics, glass, and refractory industries, where precise control over material properties is essential.

Application

• Ceramics & Glazes: Acts as a high-temperature flux to lower vitrification temperatures and improve glaze hardness, durability, and gloss.
• Glass Manufacturing: Used as a component in specialty glasses, including borosilicate glass, to enhance thermal shock resistance and chemical durability.
• Refractory Materials: Incorporated into refractory bricks and cements to improve their resistance to high temperatures and corrosive slags.
• Flame Retardants: Serves as an additive in polymers and coatings to impart flame-retardant properties through the release of boric acid.
• Metalworking & Welding: Employed in welding rod coatings and metal treatment fluxes to remove oxides and improve weld quality.
• Wood Preservatives: Used as a component in formulations to protect wood from fungal decay and insect damage.
• Agricultural Micronutrients: Provides a source of both calcium and boron, essential micronutrients for plant growth, in fertilizer blends.

Basic Information

Product Name	Calcium Metaborate Powder Technical
CAS No.	13477-26-4
Molecular Formula	Ca(BO2)2 or CaO·B2O3
Molecular Weight	125.70 g/mol
Synonyms	Calcium Borate (Metaborate); Calcium Diborate; Boric Acid, Calcium Salt; Calcium Metaborate Hydrate (when applicable); Metaboric Acid Calcium Salt; Calcium Boron Oxide; Boron Calcium Oxide; CB (abbreviation).
EINECS	236-762-3

Quality Control

Our Calcium Metaborate Powder is manufactured under a stringent quality management system. Every batch undergoes rigorous analytical testing to ensure it meets precise chemical and physical specifications for technical-grade applications. A Certificate of Analysis (COA) detailing purity, assay, and impurity levels is provided with each shipment to guarantee consistent quality and performance 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). This material is hygroscopic (moisture-sensitive); keep the container tightly sealed to prevent caking or degradation due to atmospheric moisture. Keep away from strong acids.

Specification

Item	Specification
Appearance	White to off-white powder
Identification (IR)	Conforms
Assay (as Ca(BO2)2)	≥ 95.0 %
Calcium (Ca) Content	Contact for details
Boron Trioxide (B2O3) Content	Contact for details
Loss on Drying	≤ 2.0 %
Particle Size (Typical)	< 100 mesh

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