Polyphosphoric Acid
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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 |
CERTIFIED TRUE AND CORRECT W H
Approval Date: 1/6/2011
Spec Revision