Description
Tetrapotassium Pyrophosphate 96% (TKPP)
Tetrapotassium Pyrophosphate 96% (TKPP) (CAS 7320-34-5, molecular formula K4P2O7) is a process chemical for electronics and metal finishing, where trace metal content and particle contamination matter as much as headline assay. China Chemicals supplies it at 96% min in pack sizes from 1 kg through to 1000 kg Bulk Bag, so laboratory trial quantities and full production volumes can be sourced from the same specification.
It is also traded as TKPP, Potassium Pyrophosphate, Tetrapotassium Diphosphate. Every consignment ships with a batch-specific Certificate of Analysis and the current Safety Data Sheet, and material is stored and picked under stock rotation so you receive product well inside its shelf life.
Typical applications
- Complexing agent in alkaline copper and zinc plating
- Dispersant in clay, pigment and drilling slurries
- Sequestrant in liquid detergent formulation
- Buffer in electropolishing baths
- Meat and seafood moisture retention at food grade
Technical specification
| Chemical name | Tetrapotassium Pyrophosphate 96% (TKPP) |
|---|---|
| Synonyms | TKPP, Potassium Pyrophosphate, Tetrapotassium Diphosphate |
| CAS number | 7320-34-5 |
| Molecular formula | K4P2O7 |
| Appearance | White granular powder, hygroscopic |
| Assay K4P2O7 | 96.0% min |
| P2O5 content | 42.0% min |
| pH (1% solution) | 10.0 – 10.7 |
| Water insolubles | 0.1% max |
| Heavy metals as Pb | 10 ppm max |
| Loss on ignition | 0.5% max |
Values above are typical and are confirmed on the Certificate of Analysis issued against each batch. Tighter specifications can be quoted where a process requires them.
Packaging and supply
Available in 1 kg, 5 kg, 25 kg Bag, 1000 kg Bulk Bag. Bulk, road tanker and export drum quantities are quoted on request, including FOB and CIF terms for international shipment. Pricing shown is per pack in USD, exclusive of freight and any applicable duties.
Handling and safety
Transport classification: Not regulated · Causes eye irritation. Store in the original closed container in a cool, well-ventilated area away from incompatible materials, and handle using appropriate personal protective equipment. Read the Safety Data Sheet in full before use — it is issued with every order and is available on request before purchase.
Supply to industry only. Products are sold for legitimate industrial, laboratory and manufacturing use. We may request end-use details and business registration before releasing an order.
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