Potassium Dihydrogen Phosphate

Potassium dihydrogen phosphate (KH2PO4) is a high-purity, water-soluble binary phosphorus and potassium compound. Depending on its purity grade, it is used in agriculture, industry, food, medicine, and scientific research. Specific uses are as follows:
I. Agriculture (Primary Use): Industrial-grade KH2PO4 (99% purity) is suitable for fertilizers and industrial fermentation.
As a highly efficient phosphorus and potassium compound fertilizer, it is suitable for almost all crops, including grains, fruits and vegetables, flowers, fruit trees, and tobacco. It can be applied as a foliar spray, through fertigation or drip irrigation, or used for seed soaking and coating. It can also be used in the preparation of nutrient solutions for hydroponics. It can quickly replenish phosphorus and potassium, promote flower bud differentiation, protect flowers and fruits, increase fruit size and sweetness, and improve fruit coloring and quality. Simultaneously, it strengthens roots and seedlings, enhances crop resistance to drought, frost, and lodging, prevents premature plant aging, and is also a preferred fertilizer for chlorine-sensitive crops.
II. Industrial Applications
Potassium dihydrogen phosphate can be used as a plating bath additive in the electroplating industry to improve the uniformity and quality of the plating layer; it can be used in metal surface treatment as a rust inhibitor for steel and an environmentally friendly passivating agent for aluminum alloys; as a chemical intermediate in the preparation of other phosphate products; in water treatment, it can adjust the pH of water and act as a buffer; Potassium Phosphate Monobasic it can also be used as an additive in papermaking and detergents to enhance paper strength and cleaning effect; high-purity products are also used for cleaning precision components in the electronics industry.
III. Food Applications (Food Grade)
Food-grade potassium dihydrogen phosphate is suitable for food additives and high-end fermentation.
As a legal food additive, it can be used as a buffer to adjust the pH value of beverages and meat products, stabilize proteins, and extend shelf life; it is an important component of leavening agents in baked goods; it is used as a nutritional fortifier in dairy products, sports drinks, and infant foods to supplement phosphorus and potassium and maintain electrolyte balance; it can also be used as yeast nutrients in fermented foods to enhance fermentation effects.
IV. Feed Applications
Feed-grade potassium dihydrogen phosphate: Suitable for feed additives.
Feed-grade potassium dihydrogen phosphate is a compliant nutritional feed additive, primarily providing livestock, poultry, and aquatic animals with the two essential minerals, phosphorus and potassium, and regulating electrolyte balance. It is used in large-scale farming and feed production.
V. Analytical-grade potassium dihydrogen phosphate: Suitable for reagent production and other high-end applications.
In laboratories, it is used to prepare chemical buffer solutions, microbial and plant tissue culture media; in cosmetics, it adjusts pH and improves product stability; it can also be used as an adjuvant in dry powder fire extinguishers to enhance fire extinguishing effectiveness.