Polyphosphoric Acid (PPA)
Polyphosphoric acid is mainly used in organic synthesis, pharmaceutical intermediates, spice intermediates, and the leather and chemical industries, and can also be used as a substitute for orthophosphate.
- Manufacturer since 1952 — batch-level Certificate of Analysis (COA) on every shipment
- Long-term supply contracts with committed monthly allocations, insulated from spot-market swings
- Third-party pre-shipment inspection (SGS / BV) welcomed on request
Quick facts
Standard: HG/T 4691-2014
Appearance: Colorless and syrupy liquid
Packaging: 35 kg / 330 kg plastic drums, tanks, or according to customer's demand
Specification
| Item | 115% Grade | 105% Grade |
|---|---|---|
| Chroma ≤ | 30 | 30 |
| Phosphoric acid (H₃PO₄), w/% | ≥ 115 | 104 – 106 |
| P₂O₅, w/% | ≥ 83.3 | 75.3 – 76.7 |
| Chloride (as Cl), w/% ≤ | 0.0005 | 0.0005 |
| Iron (Fe), w/% ≤ | 0.002 | 0.002 |
| Arsenic (As), w/% ≤ | 0.008 | 0.008 |
| Heavy metals (as Pb), w/% ≤ | 0.001 | 0.001 |
Standard executed: HG/T 4691-2014.
Customized specification available. Concentration grade and packaging can be produced to your requirement. The batch Certificate of Analysis (COA) prevails for every shipment.
Applications
Organic Synthesis
Condensation and cyclization reagent in organic synthesis.
Pharma & Spice Intermediates
Used in the production of pharmaceutical and spice/flavor intermediates.
Leather & Chemical Industry
Processing aid in leather and general chemical industry, and as a substitute for orthophosphate.
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