Polyphosphoric Acid (PPA) is a highly concentrated phosphoric acid derivative, typically supplied as a clear to amber, viscous liquid with strong hygroscopic and dehydrating properties. Widely used as a catalyst, dehydrating agent, and chemical intermediate, it plays a critical role in specialty chemical synthesis, polymer and resin manufacturing, and phosphate ester production. PPA is also utilized in fertilizer production and industrial processing applications where high acidity and reaction efficiency are required. Valued for its strong reactivity, versatility, and consistent performance, it is a trusted solution across chemical, petrochemical, and manufacturing industries.
| Property | Specification |
|---|---|
| Product Name | PPA polyphosphoric acid |
| CAS No | 8017-16-1 |
| Chemical Name/Synonyms | Polyphosphoric Acid; PPA; Tetraphosphoric Acid |
| Chemical Formula | HnPnO(3n+1) |
| Appearance (Color) | Viscous colorless to pale yellow syrupy liquid |
| Molecular Weight | ~1700 g/mol (avg) |
| HS Code | 2809.20 |
| TSCA Inventory | Active |
More identifiers
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Provides precise pH control for chemical synthesis and water treatment.
Aggressively dissolves mineral deposits, scale, and rust from metal surfaces.
Acts as a foundational reagent and catalyst in various organic syntheses.
Conditions and etches metal surfaces prior to plating or coating.
Effectively neutralizes alkaline streams in effluent treatment plants.
We find the right Indian manufacturer for your grade, quantity and target price. Around that, use the services you need:
Before we recommend a manufacturer, we check it in five layers: its documents (COA, SDS, certifications), its business license and IEC status with India’s DGFT, its standing with our industry contacts, an in-person visit to the facility, and its export record.
Want proof that the batch matches its COA before it ships? We collect samples at the factory or port and coordinate testing for purity, grade and contaminants at accredited third-party laboratories. Lab fees are passed through at cost.
We coordinate the paperwork (commercial invoice, packing list, certificate of origin, bill of lading, SDS and COA), compliant packaging and labeling, and the freight forwarder, from export clearance in India to customs entry in the U.S., as your one point of contact.
Our American-led team in India can be at a supplier’s site, check its machinery and real capacity, sit in on negotiations and review documents in person, then report back to you directly, with photos and video from the factory floor.
Going the other way? If you make a specialty chemical or industrial product and want to sell it in India, we provide the on-ground presence and industry network to open that market.
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Consistent quality and international standards.
Bulk availability with on-time delivery.
Flexible packaging options as per requirement.
Technical guidance and dedicated customer support.
