Physical & Chemical Properties
| Parameter |
Typical Value |
| Appearance |
White powder or granular |
| Assay (as K₄P₂O₇) |
Standard / Contact for COA |
| P₂O₅ Content |
Standard / Contact for COA |
| pH (1% solution) |
Standard / Contact for COA |
| Loss on Drying |
Standard / Contact for COA |
| Water Insoluble Matter |
Standard / Contact for COA |
Applications
- Household Cleaning: Used as a builder and water softener in liquid laundry detergents, automatic dishwashing detergents, and all-purpose cleaners.
- Industrial Wastewater: Used as a dispersant and sequestering agent for heavy metals and suspended solids.
- Cooling Water Systems: Used as a scale inhibitor to prevent calcium and magnesium scale deposition.
- Drilling Fluids: Used as a thinner and dispersant in water-based drilling muds.
- Metal Pretreatment: Used in alkaline cleaning formulations for degreasing and oxide removal.
Packaging & Storage
- Packed in 25 kg woven polypropylene bags with inner polyethylene liner, or 1000 kg FIBCs.
- Palletized and stretch-wrapped for shipment.
- Store in a cool, dry, well-ventilated area.
- Keep containers tightly closed and protect from moisture.
Frequently Asked Questions
Q: What is the typical assay specification for tetrapotassium pyrophosphate?
A: Industrial grades typically specify a minimum purity of 95% as K₄P₂O₇. The exact assay is confirmed on the certificate of analysis (COA) for each batch.
Q: Is tetrapotassium pyrophosphate soluble in water?
A: Yes, TKPP is readily soluble in water, forming a clear alkaline solution. Solubility increases with temperature.
