Sodium Fluorosilicate

Product Overview

Sodium Fluorosilicate is an inorganic fluoride salt widely used as a water fluoridation agent, ceramic and glass flux, insecticide intermediate, and wood preservative component. It appears as a white crystalline powder with good chemical stability under normal storage conditions.

Due to its controlled fluoride release and compatibility with industrial processes, sodium fluorosilicate is an essential raw material in water treatment, ceramics, metallurgy, enamel production, and chemical manufacturing.

Key Product Identification

• Product Name: Sodium Fluorosilicate

• Chemical Formula: Na₂SiF₆

• CAS Number: 16893-85-9

• Molecular Weight: 188.06 g/mol

• HS Code: 28269010

• Appearance: White crystalline powder

• Odor: Odorless

• Solubility: Slightly soluble in water, insoluble in alcohol

Chemical & Physical Properties

Manufacturing & Quality Control

Sodium Fluorosilicate is produced through neutralization and crystallization of fluorosilicic acid with sodium salts, followed by filtration, drying, and particle size control.

Quality assurance includes:

• Chemical purity testing

• Fluoride content verification

• Moisture and insoluble matter control

• Batch traceability and COA issuance

Available grades:

• Industrial Grade

• Water Treatment Grade

Applications of Sodium Fluorosilicate

Water Treatment

• Fluoridation agent for drinking water

• Controlled fluoride dosing

• Widely used by municipal water systems

Ceramics & Glass Industry

• Flux in ceramic glazes and enamels

• Improves melting efficiency and surface finish

• Used in glass and enamel coatings

Chemical & Metallurgical Applications

• Intermediate for fluoride chemicals

• Used in aluminum metallurgy

• Corrosion and process control applications

Wood Preservation & Pest Control

• Component in wood preservatives

• Intermediate for insecticide formulations

Packaging & Storage

• Packaging Options:

• 25 kg woven bag with PE liner

• 1,000 kg jumbo bag

• Customized packaging upon request

• Storage Conditions:

• Store in dry, cool, and well-ventilated areas

• Keep away from acids and moisture

• Avoid inhalation of dust

• Shelf Life: 24 months under proper storage conditions

Safety & Handling

• Toxic if ingested or inhaled in large quantities

• Avoid contact with skin and eyes

• Use appropriate PPE: gloves, masks, eye protection

• Refer to SDS / MSDS for detailed safety information

Regulatory & Compliance

Available documentation:

• COA (Certificate of Analysis)

• SDS / MSDS

• Water treatment compliance documents

• Export and customs documentation

Why Choose Our Sodium Fluorosilicate?

• ✔ High purity and consistent fluoride content

• ✔ Stable supply for water treatment and industrial use

• ✔ Strict quality control and traceable batches

• ✔ Competitive pricing and global export capability

• ✔ Technical support for application and dosing

Frequently Asked Questions (FAQ)

Q1: What is Sodium Fluorosilicate used for?

It is mainly used for water fluoridation, ceramics, glass, and industrial chemical applications.

Q2: Is Sodium Fluorosilicate soluble in water?

It is slightly soluble, allowing controlled fluoride release.

Q3: Is it safe for drinking water treatment?

Yes, when used in compliance with local water treatment regulations.

Q4: How should it be stored?

Store in sealed containers in a dry environment away from acids.