Polyphosphoric Acid

Click each tab below for product information
Polyphosphoric Acid General Information

Chemical Name: Polyphosphoric Acid (PPA)
Synonyms: Phospholeum, Tetraphosphoric Acid, Superphosphoric Acid
Chemical Formula: H(n+2)P(n)O(3n+1)
CAS Number: 8017-16-1
EC Number: 232-417-0

Polyphosphoric Acid Uses

Dehydrating Agent – It is used as a strong drying and dehydrating agent.

Organic Synthesis – Polyphosphoric Acid (PPA) is used to make phosphate esters, acid phosphates and pharmaceuticals. It is a good ring closing reagent.

Solvent – It can be used as a reaction medium and solvent.

Miscellaneous – PPA is used in metal treatment and as an asphalt and bitumen additive.

Polyphosphoric Acid Certificate of Analysis (COA)

Product Name: Polyphosphoric Acid, 115%

Quality: SMC Spec. 2720

Batch: 20101223/11288

Test/Property Specification Result
Appearance Clear viscous liquid Clear viscous liquid
Arsenic (As), % 0.010 % MAXIMUM 0.004
Assay (P2O5), % 82.5 TO 83.5 % 83.3
Chloride (Cl), % 0.0020 % MAXIMUM 0.0009
Heavy Metals, % 0.0100 % MAXIMUM 0.0015
Iron (Fe), % 0.010 % MAXIMUM 0.002
Sulfate (SO4), % 0.020 % MAXIMUM 0.001



Approval Date:  1/6/2011

Spec Revision

Polyphosphoric Acid Material Safety Data Sheet (MSDS)