StructurePolyphosphoric acid
CAS No. 8017-16-1
EC No. 232-417-0
Synonyms Tetra Phosphoric Acid; Phospholeum

Polyphosphoric acid

​Polyphosphoric acid can be used in organic synthesis for cyclization, acylation and to produce phosphate esters that are being used in various industries.


  • Asphalt and bitumen additive
  • Intermediate to produce phosphate esters e.g. flame retardants for the textile industry
  • Drying and dehydrating agent
  • Dispersing agent for dyes and pigments
  • Catalyst in production of Hydrogen Peroxide

Grades available

105 – 116%


Shelf Life

Under proper storage conditions, the shelf life is 12 months

Health & Safety

Detailed information on the product described can be found in our relevant Health and Safety Information (Material Safety Data Sheet).