Phosphorus oxychloride CAS 10025-87-3

Phosphorus oxychloride, also known as phosphoryl chloride, is a chemical compound with the CAS number 10025-87-3. It is represented by the chemical formula POCl₃ and has a molar mass of approximately 153.33 g/mol. This compound appears as a colorless to pale yellow, fuming liquid with a pungent odor, and it is highly toxic by inhalation and corrosive to metals and tissues.
Chemical Properties
Molecular Formula: POCl₃
Molar Mass: 153.33 g/mol
Density: Approximately 1.645 g/cm³
Melting Point: 1.25 °C
Boiling Point: 105.8 °C
Solubility: Reacts with water, highly soluble in organic solvents like benzene and carbon tetrachloride.
Industrial Applications
Phosphorus oxychloride is utilized in various industrial applications, including:
Chlorinating Agent: It is commonly used in the chlorination of organic compounds.
Manufacture of Flame Retardants: It serves as an important intermediate in producing flame retardant additives.
Pharmaceuticals and Fine Chemicals: It is used in the synthesis of various pharmaceutical compounds.
Specialty Fluids and Plasticizers: It is involved in producing specialty fluids and plasticizers for various applications.
Safety Considerations
Due to its toxic nature, phosphorus oxychloride must be handled with care. It can react violently with water, producing hydrochloric acid and phosphoric acid, which poses significant hazards. Proper safety measures, including the use of personal protective equipment (PPE) and adequate ventilation, are essential when working with this chemical.
In summary, phosphorus oxychloride is a versatile chemical with significant industrial applications, but it requires careful handling due to its hazardous properties.