Polyphosphoric acid CAS 8017-16-1
8017-16-1 Polyphosphate (PPA), high-concentration condensed phosphoric acid, a powerful acid combined with dehydration and catalysis. Widely used in fine synthesis catalysis, phosphorus-based flame retardant raw materials. Highly corrosive, releases heat upon contact with water. Operations require strict anti-corrosion and anti-splash measures.
Core features
Super strong protonic acid catalyst, dehydrating agent, acylation agent
Strong coordination property, high temperature resistance, non-volatile
Slow dissolution in cold water, will release a large amount of heat upon dilution with a large amount of water
| Item | Standard |
| Appearance | Colorless viscous clear liquid |
| Content(P2O5) | ≥83.3% |
| Content(H3PO4) | ≥115% |
| Chloride | ≤0.001% |
| Sulphate | ≤0.02% |
| Heavy metals | ≤0.0035% |
| Asenic | ≤0.005% |
| Iron | ≤0.0035% |
Organic synthesis catalysts
Pharmaceuticals, dyes, fragrances, fine chemicals: Friedel-Crafts reaction, cyclization, condensation, sulfonation, nitration reactions, without using concentrated sulfuric acid, with fewer side reactions.
Flame retardants / Chemical raw materials
Production of ammonium polyphosphate APP, phosphate flame retardants, phosphorus-based flame retardant intermediates.
Cosmetics / Industrial additives
Metal rust prevention, water treatment chelating agent, leather tanning, battery electrolyte additive.
Oils / Modification
Lubricants, oil modification, thickening, antioxidant, extreme pressure additives.
• Standard Packing: 25 kg/drum
• MOQ: to be confirmed by grade and destination
• Lead Time: to be confirmed by order quantity and production schedule
• Shipping: sea / air / express options available
• Store in a cool, dry, and well-ventilated place.
• Keep container tightly closed and protected from moisture.
• Avoid direct sunlight, heat, and open flame.
• Follow SDS guidance for incompatible materials.
