Potassium phosphate

Cas 7778-53-2

Potassium phosphate Cas 7778-53-2

Chemical Properties Of Potassium phosphate

Potassium phosphate (MF: K₃PO₄, MW: 212.266261), also known as Tripotassium phosphate, is a white granular powder that readily absorbs moisture. It dissolves in water and exhibits an alkaline reaction, characteristic of a typical strong base weak acid salt. It is insoluble in ethanol. Industrially produced by adding potassium hydroxide to potassium dihydrogen phosphate solution. Characterized by non-toxicity, high water solubility, and strong chemical stability. Potassium triphosphate exhibits chelating properties, forming stable complexes with certain metal ions (e.g., Fe³⁺, Cu²⁺, Zn²⁺), enabling its use in metal ion chelation and separation.

Product Description Of Potassium phosphate

Item Specification
Melting point 1340 °C
Boiling point 158 °C at 760 mmHg
Density 2.564 g/mL at 25 °C (lit.)
Vapour pressure 0 Pa at 20 °C
Specific gravity 2.564
Flash point N/A
Solubility Highly soluble in water, releasing heat upon dissolution; aqueous solution is alkaline; insoluble in organic solvents such as ethanol, diethyl ether, and acetone.

Product Application Of Potassium phosphate

  1.  As an emulsifier, chelating agent, acidity regulator, moisture retainer, and stabilizer, potassium phosphate is widely used in meat products, dairy products, beverages, pastries, canned goods, and other foods.
    It can also be used for food cleaning and decolorization.
  2.  In agriculture, tripotassium phosphate serves as a high-efficiency potassium and phosphorus fertilizer suitable for various soils. It functions as a phosphorus-potassium supplement in livestock and poultry feed while regulating feed pH.
  3.  It is used in preparing industrial cleaners, dishwashing detergents, and metal cleaners. Additionally, it serves as a water softener, corrosion inhibitor, and pH adjuster for industrial circulating water and boiler water treatment.
  4.  Tripotassium phosphate is employed in manufacturing other phosphates, glass, ceramics, and flame-retardant materials. In electroplating, it functions as a buffer and chelating agent, and acts as an alkaline catalyst in organic synthesis reactions.
  5.  Serves as a pH adjuster and buffer in pharmaceutical formulations, used in adjusting formulations for injections and oral preparations to stabilize active pharmaceutical ingredients;
  6.  Functions as a dyeing auxiliary in the textile industry to improve dye fixation rates; used in paper sizing within the papermaking industry to enhance paper strength and water resistance.
Packaging Method Of Potassium phosphate
Product packaging bags
Bagged product shipping diagram 1
Cardboard barrel
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Jinan Jinbang Chemical Co., Ltd., strategically located within the New Materials Industrial Park in Tianqiao District, Jinan City, Shandong Province, stands as a prominent chemical innovator since its establishment in 2015. Operating from a modern, expansive 37,500 m² manufacturing facility, we are dedicated to the research & development, production, and global distribution of high-performance chemical solutions.

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