Phosphorus Pentachloride

Phosphorus Pentachloride (PCl5) is a yellowish crystalline solid that is water-reactive and air-reactive; highly toxic. Even though it is not flammable, we still recommend a secure chemical storage building or container that meets specific regulations for storing Phosphorus Pentachloride. That’s why we suggest one of the following: CHEMLoc, DRUMLoc

Phosphorus Pentachloride Storing Details

  • Flammable Details: Not flammable, but may decompose in water to form hydrochloric acid and phosphoric acid and heat, which may ignite surrounding combustible material.
  • Storage Details: Keep separated from incompatible substances. Store and handle in accordance with all current regulations and standards. Store in compliant chemical storage building.
  • Compatible Details: Incompatible with water, magnesium oxide, chemically active metals: sodium, potassium; alkalis; aluminum; chlorine dioxide; chlorine; diphosphorus trioxide; fluorine; hydroxylamine; magnesium oxide; 3'-methyl-2-nitrobenzanilide; nitrobenzene; sodium; urea; water.
  • Description: Phosphorus pentachloride is the chemical compound with the formula PCl5. It is one of the most important phosphorus chlorides, others being PCl3 and POCl3. PCl5 finds use as a chlorinating reagent.
  • Classification: CLASS 8
  • Brand Name: n/a

Phosphorus Pentachloride Properties

Formula Density Boiling Point; IUPAC ID Molar Mass Soluble In Melting Point
PCl5 2.10 g/cm³ 160.5°C, 434 K, 321°F (sublimation) Phosphorus(V) chloride, Phosphorus pentachloride 208.24 g/mol Water-Reactive 332.°F (166.°C)




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