Overview
Antimony fluoride (SbF3) is an important inorganic compound composed of antimony and fluorine. It serves as a versatile fluorinating agent in chemical synthesis and finds applications across multiple industries. The compound was first prepared in the 19th century and has since become a valuable tool in organic chemistry transformations. Industrial production typically involves the reaction of antimony trioxide with hydrofluoric acid. The resulting white crystalline solid must be handled carefully due to its corrosive nature and reactivity with water. Commercial grades typically range from 95% to 99.9% purity, with higher purity commanding premium prices.
Physical and Chemical Properties
Antimony fluoride appears as white orthorhombic crystals with a density of 4.38 g/cm³. It sublimes at 376°C without melting, a characteristic that proves useful in purification processes. The compound is hygroscopic, readily absorbing moisture from air to form hydrated complexes. Chemically, SbF3 acts as a strong Lewis acid, forming stable complexes with many organic compounds. This property makes it valuable in Friedel-Crafts reactions. In aqueous solutions, it hydrolyzes slowly to form antimony oxide fluoride and hydrofluoric acid. The compound demonstrates good solubility in polar solvents but reacts violently with strong reducing agents and alkaline materials.
Main Applications
In organic chemistry, antimony fluoride serves as an effective fluorinating agent for converting chlorinated compounds to their fluorinated analogs. The pharmaceutical industry utilizes this property in drug synthesis. Another significant application is in the production of specialty glasses and ceramics, where it acts as a flux and opacifier. The compound finds use as a catalyst in polyester production and petroleum refining processes. In the electronics industry, high-purity SbF3 contributes to the manufacturing of certain semiconductor materials. Some niche applications include its use in fire retardant formulations and as a component in metal surface treatment solutions.
Safety and Storage
Antimony fluoride requires strict safety measures due to its toxicity and corrosivity. Exposure can cause severe respiratory irritation, skin burns, and eye damage. Facilities must provide proper ventilation, and personnel should wear acid-resistant gloves, face shields, and respirators when handling the material. Storage recommendations include using tightly sealed polyethylene or PTFE-lined containers in cool, dry areas separate from incompatible substances like bases and reducing agents. Spill response kits should contain neutralizing agents such as calcium carbonate. Regular inspection of storage containers is advised to check for moisture ingress or corrosion.
B2B Procurement Guide
When sourcing antimony fluoride, buyers should first determine the required purity level based on application needs. Technical grade (95-98%) suffices for most industrial uses, while pharmaceutical applications may require 99%+ purity. Request certificates of analysis and material safety data sheets from suppliers. Consider packaging options - moisture-proof bags inside fiber drums suit small quantities, while bulk shipments may require specialized containers. Evaluate supplier capabilities for consistent quality, reliable delivery, and proper handling procedures. For reference, prices typically range from $50 to $150 per kilogram, with volume discounts available for metric ton quantities. Lead times vary from 2-6 weeks depending on supplier inventory.
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