Phosphorus Pentachloride (PCl₅)
White to pale yellow crystalline chlorinating agent for API synthesis, battery electrolytes & specialty chemicals.
Product Overview
High-Potency Chlorinating Solid for Precision Synthesis
Phosphorus Pentachloride (PCl₅) is a white to pale yellow crystalline solid and one of the most potent chlorinating reagents in organic chemistry. It is widely used to convert carboxylic acids to acyl chlorides, alcohols to alkyl chlorides, and amides to imidoyl chlorides.
Technical Specifications
Physical & Chemical Properties
All parameters verified by in-house QC laboratory prior to dispatch.
| Chemical Formula | PCl₅ |
|---|---|
| CAS Number | 10026-13-8 |
| UN / Hazard Class | UN 1806 · Class 8 (PG I) |
| Appearance | White to pale yellow crystalline solid |
| Assay | ≥ 99.0% |
| Molar Mass | 208.22 g/mol |
| Sublimation Point | ~160 °C |
| Decomposition | ~300 °C → PCl₃ + Cl₂ |
| Reactivity | Reacts vigorously with water → H₃PO₄ + HCl |
Packaging & Supply
Flexible Supply Configurations
Packed under nitrogen blanketing to ensure zero moisture uptake during handling and transit.
Hazard Warning: PCl₅ is UN 1806, Class 8 Corrosive. Moisture-sensitive solid that reacts with water generating HCl fumes. Wear full PPE and handle under dry inert atmosphere. Consult SDS before use.
Industrial Applications
Where PCl₅ Powers Global Chemistry
Essential for pharmaceutical API synthesis, battery materials, and specialized chlorination chemistry.
Pharmaceutical Synthesis
Converts carboxylic acids to acyl chlorides for beta-lactam antibiotics (ampicillin, cephalosporins) and antivirals with higher yields and cleaner workup than thionyl chloride.
Battery Electrolytes
Key chemical precursor for synthesizing LiPF₆ (lithium hexafluorophosphate), the standard electrolyte salt used in lithium-ion EV batteries and energy storage systems.
Organic Chlorination
Converts hydroxyl groups to chloro compounds and amides to imidoyl chlorides for advanced agrochemical and dye intermediate syntheses.
Acid Chloride Production
Used to manufacture phosphonoyl chlorides and specialized acid chlorides used in high-performance flame retardant polymers and resins.
Specialty Syntheses
Reagent in specialty inorganic chemistry, phosphazene polymer synthesis, and specialty catalyst preparation.
Why Source from Us
Darshan Fine Chem Private Limited Quality Promise
Nitrogen Blanketing
Sealed drum packaging under dry N₂ ensures full solid crystalline integrity and zero moisture uptake.
≥99.0% Assay
Strict QC control with low free-chlorine and minimal PCl₃ impurities verified for every lot.
COA & SDS Included
Batch-specific Certificate of Analysis and SDS provided with every order.
Export Capability
Full compliance with DG transport standards for seamless export from Gujarat ports.
FAQs
Frequently Asked Questions — Phosphorus Pentachloride
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