Product name: Tetrapotassium Pyrophosphate 60% Solution (TKPP 60%)
CAS‑No：7320‑34‑5
EC/EINECS：230‑785‑7
Synonym: Potassium Diphosphate 60% aqueous solution
Molecular Formula: K4O7P2 (active ingredient)
Grade: Technical Grade Liquid
* Please note Tetrapotassium Pyrophosphate (TKPP) 98% solid is available.
Product Description
Tetrapotassium Pyrophosphate 60% Solution is concentrated aqueous solution of tetrapotassium pyrophosphate. It is clear, colourless, odourless strongly‑alkaline liquid. Excellent chelating, dispersing and water‑softening performance for calcium & magnesium ions. Widely used for non‑cyanide electro‑plating, industrial heavy‑duty cleaners, water‑treatment scale inhibitor, ceramic slurry dispersant。
Physical‑Chemical Properties
Freezing point approx −15 ℃
Boiling point >100 ℃
Flash point Non‑flammable
Solubility Fully miscible with water
Stability Stable under normal conditions; avoid acid addition (will generate pyrophosphoric acid)
Typical Quality Specifications
| Item | Specification | Test Method |
|---|---|---|
| Appearance | Clear, colorless transparent liquid, no sediment | Visual |
| Tetrapotassium Pyrophosphate, wt% | 58.0‑61.0 | Titration |
| P₂O₅ content, wt% | 21.0‑22.0 | Titration |
| Density (20℃), g/cm³ | 1.60‑1.70 | Hydrometer |
| pH (1% aqueous solution) | 10.0‑11.5 | pH‑meter |
| Fe, ppm | ≤10 | AAS |
| Water insoluble matter, wt% | ≤0.10 | Gravimetry |
Applications
Electroplating: Complexing agent for non‑cyanide copper plating bath.
Industrial cleaning: Chelator / builder for heavy‑duty alkaline cleaners, removes water hardness.
Water‑treatment: Sequestering & anti‑scale agent.
Ceramic, coating industry: Dispersant for inorganic slurry.
Textile auxiliary agent.
Transport & Packaging
UN‑Number: UN 3266
Hazard Class: Class 8 Corrosive liquid, Packing Group ⅢInnophos
HS Code: 28353990
Package: 1000L IBC tank / 200kg plastic drum
Storage: Keep tightly closed, store in cool warehouse. Separate from acids. Avoid freezing.
Shelf‑life: 12 months under proper storage.
Hazard Summary
Warning, Corrosive liquid.
Causes severe skin burns and serious eye damage. Avoid contact with skin, eyes. Wear chemical‑resistant gloves, goggles & face shield. Do not mix with acids. For full safety information refer to SDS.
Disclaimer
All information is based on current laboratory data for reference only, not constitute warranty. End‑user shall verify suitability for own process and comply with local transport & regulatory rules.
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