Chemical Name:  Dipotassium Phosphate / Dipotassium phosphate Trihydrate
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 ventilating 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.