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Phosphorus pentachloride

CAS 10026-13-8PCl5Chemical Synthesis

Phosphorus pentachloride (CAS: 10026-13-8, Formula: PCl5, MW: 208.24) is a highly reactive chlorinating agent. It is a solid compound known for its corrosive nature and tendency to react violently with water. Phosphorus pentachloride is indispensable in organic synthesis for the conversion of carboxylic acids into acid chlorides and in the production of phosphorus oxychloride and other organophosphorus compounds.

IUPAC
Phosphorus(V) chloride
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Phosphorus pentachloride (PCl5) — chemical structure, CAS 10026-13-8; Chemistry, fine chemical supplied by Tech Serve Solutions
C-X Bond Formation (Halogen)Chemical SynthesisChlorinationSynthetic Reagents
01 /Applications

Organic Synthesis Reagent

Phosphorus pentachloride serves as a key reagent for transforming carboxylic acids into their corresponding acid chlorides, a vital step in the synthesis of esters, amides, and acid anhydrides.

Chlorination Agent

It is extensively used as a chlorinating agent in various chemical transformations, enabling the substitution of oxygen atoms with chlorine, particularly in the synthesis of phosphorus oxychloride.

Production of Organophosphorus Compounds

This compound facilitates the synthesis of a wide array of organophosphorus compounds, which find applications in pharmaceuticals, agrochemicals, and flame retardants.

02 /Properties
Molecular weight208.24
Linear formulaPCl5
Assay≥98.0% (AT)
Gradereagent grade
Impurities tested≤0.005% total of sulfur (S)
03 /Safety & handling
GHS hazard pictogram: Corrosive (GHS05)
Corrosive
GHS hazard pictogram: Toxic (GHS06)
Toxic
GHS hazard pictogram: Health hazard (GHS08)
Health hazard
Danger

Hazard statements

  • H302Harmful if swallowed
  • H314Causes severe skin burns and eye damage
  • H330Fatal if inhaled
  • H373May cause damage to organs through prolonged exposure

Precautionary statements

  • P260Do not breathe dust, fume, gas, mist, vapours or spray
  • P280Wear protective gloves, clothing and eye/face protection
  • P284Wear respiratory protection
  • P305IF IN EYES
  • P310Immediately call a POISON CENTER or doctor
Protective equipmentEyeshields, Faceshields, full-face particle respirator type N100 (US), Gloves, respirator cartridge type N100 (US), type P1 (EN143) respirator filter, type P3 (EN 143) respirator cartridges
Transport (UN / ADR)UN 1806 8 / PGII
Water hazard class (WGK, DE)1
Hazard codes (EU)T+
Risk statements (R)14-22-26-34-48/20
Safety statements (S)7/8-26-36/37/39-45
Supplemental hazardsReacts violently with water.
Cation tracesCa: ≤50 mg/kgCd: ≤50 mg/kgCo: ≤50 mg/kgCu: ≤50 mg/kgFe: ≤50 mg/kgK: ≤100 mg/kgNa: ≤100 mg/kgNi: ≤50 mg/kgPb: ≤50 mg/kgZn: ≤50 mg/kg

Hazard information is provided for guidance. Always consult the product Safety Data Sheet (SDS), available on request, before handling.

04 /Identifiers & registry
CAS number
10026-13-8
MDL number
MFCD00011439
PubChem substance
24849700
05 /Quality & supply

Documentation

Every batch ships with a Certificate of Analysis covering assay, identity and purity; the grade is confirmed against your enquiry. Safety Data Sheets and technical data sheets are available on request.

Supply & logistics

Samples for technical evaluation; bulk MOQ by grade and packaging. In-stock material ships in 7–10 working days, worldwide, with full export documentation.

06 /Frequently asked questions

What is Phosphorus pentachloride used for?

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Phosphorus pentachloride (CAS: 10026-13-8) is primarily used as a chlorinating agent in organic synthesis for converting carboxylic acids to acid chlorides and in the production of phosphorus oxychloride and other organophosphorus compounds.

What are the CAS number and formula for Phosphorus pentachloride?

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The CAS number for Phosphorus pentachloride is 10026-13-8, and its chemical formula is PCl5.

What grade and purity does Tech Serve Solutions supply for Phosphorus pentachloride?

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Tech Serve Solutions supplies Phosphorus pentachloride in reagent grade with an assay of ≥98.0% (AT). We do not represent this product as USP, BP, or EP grade.

How should Phosphorus pentachloride be handled safely?

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Phosphorus pentachloride is a corrosive substance that reacts violently with water. It is harmful if swallowed, causes severe skin burns and eye damage, and is fatal if inhaled. Appropriate personal protective equipment, including eyeshields, gloves, and respiratory protection (type N100 or P3 filters), must be used in a well-ventilated area.

How is Phosphorus pentachloride packed and exported?

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Phosphorus pentachloride is classified under UN 1806, Hazard Class 8, Packing Group II. TSS ensures appropriate packaging for safe handling, shipping, and export in compliance with international regulations.

How can I request a quote or sample of Phosphorus pentachloride?

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To request a quote or a sample of Phosphorus pentachloride, please contact our sales team through the website or by phone, providing your specific requirements and shipping details.

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