DIPOTASSIUM PHOSPHATE (DKP)
Chemical formula：K2HPO4•nH2O (n=0，3)
Molecularweight：174.17 (n=0） 228.22 (n=3）
Standard executed：
HG/T 4510-2013 (Industrial Grage)
GB25561-2010 (Food Grade)
CAS Number：7758-11-4
Properties:
White or colorless crystals, easily soluble in water, slightly alkaline in water solution, slightly soluble inalcohol, hygroscopic, relative density of 2.338, when heated to 204℃, it converts to potassium pyrophosphate.
Application:
Used as water treatment agent. antifreeze corrosioninhibitor, is the raw material for roducing potassiumpyrophosphate, can be used as liguid fertilizer; In medicine, it is used in antibiotic culture medium, also as phosphorus and potassium regulator. lt can be used as a mild alkaline agent for fermentation, flavoring agent, leavening agent and dairy products in food, and can also be used as a feed nutritional supplement.
Packing and storage:
Plastic-woven sack with polythene inner bag, net weight at 25Kg, 50Kg or 1000Kg. Store at a ventilated,dry place.
Technical Specifications:
NO. | Specifications | Anhydrous K₂HPO4 | Trihydrate K₂HPO4·3H₂O | ||
Industrial Grage | Food Grade | Industrial Grage | Food Grade | ||
1 | Appearance | White Powder | White or Colorless crystal powder | ||
2 | Main contents | MIN 98.0% | MIN 98.0% | MIN 97.0% | MIN 97.0% |
3 | Phosphorus pentoxide | MIN 39.95% | MIN 39.95% | MIN 30.2% | MIN 30.2% |
4 | K2O计 | MIN 52.9% | MIN 52.9% | MIN 40.0% | MIN 40.0% |
5 | PH value | 8.6-9.4 | 8.6-9.4 | 8.6-9.4 | 8.6-9.4 |
6 | Water insoluble | MAX 0.1% | MAX 0.20% | MAX 0.1% | MAX 0.20% |
7 | Heavy metal, as Pb | MAX 0.01% | MAX 0.01% | ||
8 | Arsenic, as As | MAX 0.0003% | MAX 0.0003% | ||
9 | Fluoride, as F | MAX 0.001% | MAX 0.001% | ||
10 | Pb | MAX 0.0002% | MAX 0.0002% | ||
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