Physical and chemical properties：
A 50% solution of potassium tripolyphosphate (KTPP) is a colorless and transparent liquid with a relative density of 1.55 - 1.6 g/cm³. It can form chelates with alkaline metal ions or heavy metal ions.
Applications：
The 50% potassium tripolyphosphate (KTPP) solution is mainly used in metal surface treatment, macroelement water-soluble fertilizers, and leverages its high complexing capacity for metal ions. Pyrophosphate can form stable complexes with calcium and magnesium ions in water, which enables it to soften hard water, enhance detergency, remove dirt, and form a protective layer on metal surfaces to improve corrosion resistance. It is widely applied in the industries of industrial component cleaning and metal pre-treatment. The 50% potassium tripolyphosphate solution is clear without impurities or precipitates, featuring excellent stability and no hydrolysis within two years. It meets world-class standards.
| Specifications | low-iron grade | Industrial grade | |
|---|---|---|---|
| Packing: | 25kg/drum, in plastic or iron drums with inner bag,or as customer's requirements. | ||
| Appearance | Clear liquid | Clear liquid | |
| Assay(K5P3O10) % | 48-52 | 50 | |
| Cr(ppm) | 0 | 0 | |
| Co(ppm) % | 0 | 0 | |
| F(ppm) % | 5 | 5 | |
| Fe (ppm) % | 5 | 10 | |
| As (ppm) % | 3 | 3 | |
| Ni(ppm) % | 0 | 0 | |
| Pb(ppm) % | 5 | 5 | |
Density g/ml | 1.55-1.6 | 1.55-1.6 | |
| pH(1%sol.) | 9.6-10.4 | 9.6-10.4 | |
Transportation conditions: It is strictly prohibited to mix and transport with oxidants, acids, edible chemicals, etc. During transportation, exposure to sunlight, rain, and high temperatures should be prevented. The vehicle should be cleaned after transportation. For road transportation, it shall follow the specified route. Air transportation: Potassium pyrophosphate can be handled under ordinary cargo conditions.
Storage conditions: It should be stored in a cool and dry place. Attention should be paid to protecting it from sunlight, moisture and package damage. It is recommended to stack it on shelves or single-layer pallets.
Shelf life: Under the above storage and transportation conditions, the shelf life is 12 months.
