CAS 7778-53-2 White TKP Anhydrous 98% Tripotassium Phosphate
TKP Anhydrous 98% Tripotassium Phosphate For Emulsifier Seasoning Agent 7778-53-2
Preparation:
The production method is mainly neutralization method, that is, after the reaction is carried out with phosphoric acid with potassium hydroxide or potassium hydrogen carbonate and potassium carbonate, the neutralization solution is concentrated after the control of reaction end point, the insoluble matter is removed, and then it is cooled and crystallized, and then centrifugally separated and dried to produce the product. However, phosphoric acid can be divided into thermal process phosphoric acid and wet process phosphoric acid. Wet process phosphoric acid is mainly made from phosphate rock and inorganic acid according to the principle of making weak acid from strong acid. Even if inorganic acid, such as sulfuric acid, is used to leach the phosphorus element, so that sulfate radical and other elements, such as calcium, form calcium sulfate insoluble substance, which is obtained by filtration.
| Specification | Unit | Guaranteed | Test Result |
| Appearance | white powder | white powder | |
|
Main Contents (K3PO4) |
% | ≥97.0 | 97.0-98.0 |
| PH (10g/L solution) | 11.5-12.5 | 11.5-12.5 | |
| Arsenic(As) | mg/kg | ≤3 | 3 |
| Fluoride(F) | mg/kg | ≤10 | 10 |
| Heavy metals(as Pb) | mg/kg | ≤10 | 10 |
| Pb | mg/kg | ≤2 | 2 |
| Water-insolubl | w/% | ≤0.2 | 0.2 |
| Loss on dry | w/% | ≤5.0 | 2.0 |
| Granularity | Mesh |
Depend on customers’ request 10mesh-100mesh |
|
| Apparent density | mg/mm3 | 0.5-0.9 |
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Quantity(Metric Tons) 1 - 20 >20 Est. Time(days) 15 To be negotiated
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