Description

Sodium Aluminum Tetrafluoride is an inorganic salt primarily utilized as a critical fluxing agent in the metallurgical industry. Its value lies in its ability to significantly lower the melting point of alumina, thereby enhancing process efficiency and reducing energy consumption in metal production. This compound is essential for manufacturers in the aluminum smelting, ceramic, and glass industries seeking to optimize their operations.

Application

• Primary Aluminum Production: Acts as a key component in the electrolyte bath for the Hall-Héroult process, lowering the operating temperature and improving current efficiency.
• Ceramic & Glass Manufacturing: Serves as a flux and opacifier to modify melting characteristics and enhance the physical properties of the final product.
• Abrasive & Refractory Materials: Used in the production of grinding wheels and high-temperature resistant linings due to its stability.
• Welding & Brazing Fluxes: Incorporated into flux formulations to dissolve oxides and promote clean metal joins.
• Catalyst & Chemical Synthesis: Functions as a catalyst or reagent in specific fluorination and organic synthesis reactions.
• Metal Surface Treatment: Employed in certain processes for cleaning or coating metal surfaces.

Basic Information

Product Name	Sodium Aluminum Tetrafluoride
CAS No.	13821-15-3
Molecular Formula	NaAlF4
Molecular Weight	125.96 g/mol
Synonyms	Sodium Tetrafluoroaluminate; Cryolite, Synthetic; Aluminum Sodium Fluoride; Sodium Aluminum Fluoride; Kryolith; Kryocide; EINECS 237-513-6
EINECS No.	237-513-6

Quality Control

Our Sodium Aluminum Tetrafluoride is manufactured under strict quality control protocols to ensure batch-to-batch consistency and compliance with industrial specifications. Each lot is tested for critical parameters including purity, fluoride content, and impurity profiles. A comprehensive Certificate of Analysis (COA) detailing all test results is provided with every shipment to guarantee product integrity and support your quality assurance processes.

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 and bases. The product is hygroscopic (moisture-sensitive); ensure containers are kept sealed when not in use to prevent caking or degradation.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms
Assay (as NaAlF4)	≥ 98.0 %
Fluoride (F) Content	≥ 60.0 %
Aluminum (Al) Content	20.0 - 22.0 %
Sodium (Na) Content	17.0 - 19.0 %
Loss on Drying (105°C)	≤ 0.5 %
Water Insoluble Matter	≤ 0.3 %
Heavy Metals (as Pb)	≤ 20 ppm
Iron (Fe)	≤ 100 ppm
Silica (SiO2)	≤ 0.5 %

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