Description

Boron Calcium Oxide (B6Ca2O11), Pentahydrate is a specialized inorganic compound that combines boron and calcium in a unique oxide matrix. This material is valued for its role as a controlled-release source of both boron and calcium, essential for applications requiring precise nutrient delivery or chemical reactivity. It is primarily utilized in industries such as specialty glass and ceramics manufacturing, advanced metallurgy, and as a component in specific agricultural and industrial formulations.

Application

• Specialty Glass & Ceramics: Acts as a fluxing agent and a source of boron and calcium oxides to modify thermal properties, chemical durability, and optical characteristics in high-performance glass and ceramic frits.
• Metallurgy: Used in slag conditioning and as a refining agent in the production of specialty steels and non-ferrous metals to control impurities and improve melt fluidity.
• Agricultural & Horticultural Additives: Serves as a slow-release source of boron and calcium micronutrients in specialized fertilizer blends and soil amendment products.
• Flame Retardants & Stabilizers: Incorporated as a synergistic component in certain halogen-free flame retardant systems for polymers and construction materials.
• Chemical Synthesis: Employed as a precursor or reactant in the synthesis of other boron- and calcium-containing compounds for research and industrial chemical processes.
• Nuclear Applications: Investigated for use in shielding materials or neutron-absorbing composites due to the presence of boron-10 isotope.

Basic Information

Product Name	Boron Calcium Oxide (B6Ca2O11), Pentahydrate
CAS No.	854267-07-5
Molecular Formula	B6Ca2O11 · 5H2O
Molecular Weight	407.38 g/mol (Anhydrous basis: 317.28 g/mol)
Synonyms	Calcium Borate Pentahydrate; Diboron Calcium Undecaoxide Pentahydrate; Calcium Hexaborate; Calcium Boron Oxide Hydrate; Boro-Calcite (synthetic); Calcium Metaborate Hydrate; B6Ca2O11·5H2O
EINECS	Contact for details

Quality Control

Our Boron Calcium Oxide Pentahydrate is manufactured under a stringent quality management system. Each batch undergoes rigorous analytical testing to ensure consistency and compliance with agreed specifications. A comprehensive Certificate of Analysis (COA) detailing purity, assay, and impurity profiles is provided with every shipment and is available for review upon request.

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 nature, the container must be kept tightly sealed after opening to minimize exposure to atmospheric moisture. Store away from incompatible materials.

Specification

Item	Specification
Appearance	White to off-white powder
Identification (IR)	Conforms
Assay (as B6Ca2O11)	≥ 95.0 %
Boron Content (as B)	≥ 18.0 %
Calcium Content (as Ca)	≥ 22.0 %
Loss on Drying	20.0 - 25.0 %
Heavy Metals (as Pb)	≤ 20 ppm
Water Insoluble Matter	≤ 0.5 %
Particle Size (Typical)	Passes through 100 mesh

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