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Dipotassium Phosphate
Chemical Name: Dipotassium Phosphate
Formula: K2HPO4, K2HPO4· 3H2O
Molecular weight: Anhydrous: 174.18; Trihydrate : 228.184.Specificity: It’s colorless or white square crystal granule, easily deliquescent, alkaline, insoluble in ethanol. PH value is about 9 in 1% aqueous solution.
Quality Standard:
Name of Index | GB 25561-2010 | FCC-1997 |
Assay (dry)≥% | 98.0 | 98.0 |
As≤% | 0.0003 | 0.0003 |
P2O5Assay≥% | 39.94(Anhydrous) | 39.94(Anhydrous) |
30.52(Trihydrate) | 30.52(Trihydrate) | |
K2O Assay≥% | 52.94(Anhydrous) | 52.94(Anhydrous) |
40.4(Trihydrate) | 40.4(Trihydrate) | |
Fluoride(F)≤% | 0.001 | 0.001 |
Heavy Metal(Pb)≤% | 0.001 | 0.0015 |
Water insoluble matter≤% | 0.2 | 0.2 |
Pb≤% | 0.0002 | 0.0002 |
Loss on Dry% | ≤2.0 (Anhydrous) | ≤2.0 (Anhydrous) |
20.0-30.0 (Trihydrate) | 20.0-30.0 (Trihydrate) | |
pH value | 9.0+0.4 | --- |
Usage:In food industry, it is used as buffering agent, chelating agent, yeast food, emulsifying salt, synergistic agent of anti-oxidation.
Packing:It is packed with polyethylene bag as inner layer, and a compound plastic woven bag as the outer layer. The net weight of each bag is 25kg.
Storage and Transport: It should be stored in a dry and ventilting warehouse. Be cautious to keep away from moisture and hot; unloaded with care, so as to avoid the damage. Furthermore, it should be stored separately from poisonous substance
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