Description

Magnesium Hexafluorosilicate Hexahydrate is an inorganic salt primarily valued for its role as a source of fluoride and silicon. This compound is critical in industrial processes where controlled release of these elements is required. It serves key functions in sectors including surface treatment, ceramics manufacturing, and as a specialized reagent in chemical synthesis.

Application

• Surface Treatment & Metal Finishing: Used in formulations for metal surface cleaning, etching, and conversion coatings to improve corrosion resistance and paint adhesion.
• Ceramics & Glass Production: Acts as a fluxing agent and a source of silicon dioxide (SiO₂) and magnesium oxide (MgO) in the manufacture of specialty glasses, enamels, and ceramic glazes.
• Chemical Synthesis: Serves as a fluorinating agent or a precursor for other silicon- and magnesium-containing compounds in laboratory and industrial-scale reactions.
• Wood Preservation: Employed in certain formulations to impart fire-retardant and decay-resistant properties to timber.
• Water Treatment: Used in specific fluoridation processes and as a component in formulations for industrial wastewater treatment.
• Agriculture: Functions as a micronutrient source (magnesium and silicon) in specialized fertilizer blends for certain crops.

Basic Information

Product Name	Magnesium Hexafluorosilicate Hexahydrate
CAS No.	18972-56-0
Molecular Formula	MgSiF₆·6H₂O
Molecular Weight	274.47 g/mol
Synonyms	Magnesium Fluosilicate Hexahydrate; Magnesium Silicofluoride Hexahydrate; Hexafluorosilicate(2-) Magnesium, Hexahydrate; Magnesium Hexafluorosilicate(2-) Hexahydrate; Silicate(2-), hexafluoro-, magnesium (1:1), hexahydrate; Magnesium Silicon Fluoride; Magnesium Fluorosilicate
EINECS	242-761-3

Quality Control

Our Magnesium Hexafluorosilicate Hexahydrate is manufactured under a stringent quality management system. Each batch undergoes comprehensive analytical testing to ensure it meets precise chemical and physical specifications. A Certificate of Analysis (COA) detailing purity, assay, and impurity profiles is provided with every shipment to guarantee traceability and compliance.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). This material is hygroscopic (moisture-sensitive) and must be kept in its original, sealed packaging until use to prevent caking and degradation. Keep away from strong alkalis.

Specification

Item	Specification
Appearance	White crystalline powder
Identification (IR)	Conforms
Assay (MgSiF₆·6H₂O)	≥ 98.0 %
Water Content (KF)	37.0 - 40.0 %
Chloride (Cl)	≤ 0.01 %
Sulfate (SO₄)	≤ 0.02 %
Heavy Metals (as Pb)	≤ 10 ppm
Iron (Fe)	≤ 20 ppm

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