Description

Disodium Octaborate Tetrahydrate is an inorganic boron compound with versatile industrial applications. This product is valued for its role as a source of boron, a critical element in numerous manufacturing and agricultural processes. It is essential for industries requiring flame retardancy, wood preservation, and micronutrient supplementation. Global manufacturers and formulators rely on its consistent quality for producing reliable end-products.

Application

• Flame Retardant Additive: Used in cellulose insulation, plastics, textiles, and coatings to inhibit combustion and meet fire safety standards.
• Wood Preservative: Protects timber from fungal decay and insect damage, extending the service life of lumber and outdoor structures.
• Agricultural Micronutrient: Serves as a source of soluble boron in fertilizers and foliar sprays to correct boron deficiencies in crops.
• Glass and Ceramics Manufacturing: Acts as a fluxing agent to lower melting temperatures and modify the thermal and chemical properties of glass and ceramic frits.
• Adhesives and Sealants: Imparts fire-retardant properties and can act as a cross-linking agent in certain formulations.
• Metal Treatment: Used in some metalworking fluids and as a component in formulations for corrosion inhibition.

Basic Information

Product Name	Disodium Octaborate Tetrahydrate
CAS No.	12280-03-4
Molecular Formula	Na2B8O13 • 4H2O
Molecular Weight	412.52 g/mol
Synonyms	Disodium Octaborate; Sodium Octaborate Tetrahydrate; Octaborate Disodium Salt; Boron Sodium Oxide (B8Na2O13) Tetrahydrate; Tim-Bor; Polybor; Bora-Care; Solubor (related trade names); Sodium Tetraborate Octahydrate (related compound)
EINECS	235-541-3

Quality Control

Our Disodium Octaborate Tetrahydrate is manufactured under strict quality management systems to ensure batch-to-batch consistency and reliability. Quality is verified through rigorous in-process and final product testing, including assay, impurity profiling, and physical parameter checks. A Certificate of Analysis (COA) documenting key specifications is provided with each shipment and is available upon request to support your quality assurance protocols.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C). This material is hygroscopic (moisture-sensitive); the container must be kept tightly sealed after opening to minimize exposure to atmospheric humidity.

Specification

Item	Specification
Appearance	White, free-flowing powder
Identification (IR)	Conforms
Assay (as Na2B8O13•4H2O)	≥ 98.0 %
Boron (B) Content	≥ 20.5 %
Solubility (in Water)	Clear solution
pH (10% solution)	8.0 - 9.5
Loss on Drying	≤ 2.0 %

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