Description

Potassium Borate is an inorganic salt valued for its role as a source of boron and potassium in various industrial and technical processes. This compound is essential for applications requiring controlled release of boron, a key element in glass formulation, metallurgy, and flame retardancy. It is particularly relevant for manufacturers in the glass, ceramics, agriculture, and specialty chemical industries seeking a stable and reliable boron source.

Application

• Glass and Ceramics Manufacturing: Acts as a fluxing agent and source of boron oxide (B2O3) to lower melting temperatures and improve the thermal and chemical resistance of glass, fiberglass, and ceramic glazes.
• Flame Retardants and Wood Treatment: Used in formulations for fire-resistant coatings, cellulose insulation, and wood preservatives due to its ability to inhibit combustion.
• Metallurgical Fluxes: Employed in welding and brazing fluxes to remove oxides and improve the flow and quality of metal joints.
• Agriculture and Horticulture: Serves as a source of soluble boron and potassium in specialty fertilizers and micronutrient solutions to correct soil deficiencies.
• Lubricant Additives: Functions as an anti-wear and extreme pressure (EP) additive in grease and oil formulations for high-temperature applications.
• Chemical Synthesis: Used as a precursor or catalyst in the synthesis of other boron-containing compounds and specialty chemicals.

Basic Information

Product Name	Potassium Borate
CAS No.	12007-40-8
Molecular Formula	Typically represented as K2B8O13·4H2O or related hydrated forms
Molecular Weight	Varies by specific hydrate (e.g., ~412.5 g/mol for K2B8O13·4H2O)
Synonyms	Potassium Tetraborate; Potassium Octaborate; Potassium Boron Oxide; Boron Potassium Oxide; Dipotassium Octaborate Tetrahydrate; Fused Potassium Borate; K-Borate; K2O·4B2O3·4H2O
EINECS	234-509-7

Quality Control

Our Potassium Borate is produced under strict quality management protocols. Each batch undergoes rigorous analytical testing to ensure consistency and compliance with agreed specifications. We provide comprehensive Certificates of Analysis (COA) detailing key parameters such as assay, moisture content, and impurity levels. Our quality systems support traceability and meet the demands of global industrial supply chains.

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 lead to caking or changes in physical properties. Keep away from incompatible materials.

Specification

Item	Specification
Appearance	White crystalline powder or granules
Identification (IR)	Conforms
Assay (as K2B8O13·4H2O)	≥ 98.0 %
Boron Content (as B2O3)	Contact for details
Potassium Content (as K2O)	Contact for details
Loss on Drying	≤ 2.0 %
Water Insoluble Matter	≤ 0.5 %
pH (5% solution)	8.0 - 10.0
Heavy Metals (as Pb)	≤ 20 ppm

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