Description

Potassium Hexafluoraluminate is an inorganic salt primarily used as a fluxing agent in various high-temperature industrial processes. Its value lies in its ability to lower the melting point of mineral mixtures, facilitating efficient and uniform melting. This compound is essential for manufacturers in the aluminum, glass, and ceramics industries, where precise thermal control is critical for product quality and process efficiency.

Application

• Primary fluxing agent in the production of aluminum metal, particularly in secondary (recycled) aluminum smelting.
• Key component in the manufacture of opalescent and milky white glass, acting as a flux and opacifier.
• Used in the ceramics industry for glazes and enamels to improve surface finish and durability.
• Employed as a filler or additive in abrasives and grinding wheels.
• Acts as a flux in brazing and soldering applications for certain metals.
• Utilized in the synthesis of other complex fluoride compounds and as a laboratory reagent.

Basic Information

Product Name	Potassium Hexafluoraluminate
CAS No.	13775-52-5
Molecular Formula	K3AlF6
Molecular Weight	258.28 g/mol
Synonyms	Potassium Aluminum Fluoride; Potassium Cryolite; Aluminum Potassium Hexafluoride; Tripotassium Hexafluoroaluminate; KAlF4/K3AlF6 Eutectic; Kryocide (obsolete); Fluxing Agent KAlF; EINECS 237-409-6

Quality Control

Our Potassium Hexafluoraluminate is produced under a stringent quality management system to ensure batch-to-batch consistency and reliability. Each lot undergoes comprehensive analysis for key parameters including purity, fluoride content, and particle size distribution. Certificates of Analysis (COA) detailing these results are provided with every shipment and are 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 away from incompatible materials such as strong acids. The product is moisture-sensitive; keep containers tightly sealed when not in use to prevent caking or degradation. Recommended storage temperature is 15-25°C.

Specification

Item	Specification
Appearance	White crystalline powder
Identification (IR)	Conforms
Assay (as K3AlF6)	≥ 98.0 %
Fluoride (F) Content	≥ 52.0 %
Aluminum (Al) Content	10.0 - 11.5 %
Potassium (K) Content	44.0 - 46.0 %
Moisture (Loss on Drying)	≤ 0.5 %
Particle Size (Typical, -200 mesh)	≥ 95 %

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