Dipotassium Phosphate

Chemical Name: Dipotassium Phosphate

Molecular Formula: K2HPO4

Molecular Weight: 174.18

CAS: 7758-11-4

Character: It’s colorless or white square crystal granule or powder, easily deliquescent, alkaline, insoluble in ethanol. pH value is about 9 in 1% aqueous solution.

Product Detail

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 outer layer. The net weight of each bag is 25kg.
Storage and Transport: It should be stored in a dry and ventilative warehouse, kept away from heat and moisture during transportation, unloaded with care so as to avoid damage. Furthermore, it must be stored separately from poisonous substances.
Quality Standard:(FCC-V, E340(ii), USP-30)

Name of index FCC-V E340(ii) USP-30
Description Colourless or white granular powder, crystals or masses; deliquescent substance, hygroscopic
Solubility -- Freely soluble in water. Insoluble in ethanol --
Identification Pass test Pass test Pass test
pH value -- 8.7—9.4(1% solution) 8.5--9.6(5% solution)
Content (as dry base) % ≥98.0 ≥98.0 (105℃,4h) 98.0-100.5
P2O5 Content (Anhydrous basis) % -- 40.3--41.5 --
Water insoluble (Anhydrous basis) ≤% 0.2 0.2 0.2
Carbonate -- -- Pass test
Chloride ≤% -- -- 0.03
Sulfate ≤% -- -- 0.1
Organic volatile impurities -- -- Pass test
Fluoride ≤ppm 10 10(expressed as fluorine) 10
Monobasic or tribasic salt -- -- Pass test
Loss on drying ≤% 2 (105℃,4h) 1 (105℃)
Heavy metals ≤ppm -- -- 10
Sodium -- -- Pass test
As ≤ppm 3 1 3
Iron ≤ppm -- -- 30
Cadmium ≤ppm -- 1 --
Mercury ≤ppm -- 1 --
Lead ≤ppm 2 1 --
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