Description

Potassium Metaborate is an important inorganic borate salt widely utilized in industrial processes for its fluxing and buffering properties. This compound is valued for its ability to lower melting points and control pH in high-temperature applications, enhancing process efficiency and product quality. It serves as a critical raw material for manufacturers in the glass, ceramics, and metallurgical industries, where precise chemical control is paramount.

Application

• Glass and Ceramics Manufacturing: Acts as a high-performance fluxing agent to reduce melting temperatures and improve the durability and clarity of specialty glasses, enamels, and glazes.
• Metallurgical Flux: Used in welding and brazing fluxes, as well as in metal refining processes, to remove oxides and impurities from metal surfaces.
• Fire Retardants: Incorporated into formulations for wood, textiles, and polymers to impart flame-resistant properties.
• Laboratory Reagent: Serves as a buffering agent and a source of borate ions in analytical chemistry and research applications.
• Agricultural Chemicals: Used as a micronutrient source in fertilizers and as a component in pesticide formulations.
• Corrosion Inhibition: Applied in cooling water systems and antifreeze solutions to prevent scale formation and protect metal surfaces.

Basic Information

Product Name	Potassium Metaborate
CAS No.	16481-66-6
Molecular Formula	KBO2
Molecular Weight	81.91 g/mol
Synonyms	Potassium Borate; Boron Potassium Oxide; Potassium Boron Oxide; Boric Acid, Potassium Salt; Monopotassium Metaborate; Potassium Oxoborane; KBorate; KBO2
EINECS	240-551-5

Quality Control

Our Potassium Metaborate is produced under a stringent quality management system to ensure batch-to-batch consistency and reliability. Each lot undergoes comprehensive analytical testing, including assay, impurity profile analysis, and physical property verification, to meet exacting industrial standards. A Certificate of Analysis (COA) detailing all test results is provided with every shipment to guarantee product integrity and traceability.

Storage

Preserve in a tightly closed container, protected from light. Due to its hygroscopic nature, this material must be stored in a cool, dry, and well-ventilated area. The recommended storage temperature is between 15°C and 25°C (59°F and 77°F). Keep the container tightly sealed when not in use to minimize exposure to atmospheric moisture.

Specification

Item	Specification
Appearance	White crystalline powder or granules
Identification (IR)	Conforms
Assay (as KBO2)	≥ 98.0 %
Loss on Drying	≤ 2.0 %
Water Insoluble Matter	≤ 0.5 %
pH (5% solution)	9.0 - 11.0
Heavy Metals (as Pb)	≤ 20 ppm

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