Monopotassium Phosphate(MKP)

1. Agriculture and Horticulture

• High-Efficiency Water-Soluble Fertilizer: This is MKP's core application. It contains approximately 52% phosphorus and 34% potassium, both of which are readily available nutrients with excellent water solubility. It can be formulated as foliar fertilizer, fertigation fertilizer, and drip irrigation fertilizer, suitable for various crops. It promotes flower bud differentiation, protects flowers and fruits, improves fruit quality and yield, and enhances plant resistance to cold, drought, and lodging. It is especially suitable for chlorine-sensitive crops such as melons, vegetables, flowers, and tobacco, as well as for nutrient supplementation during critical growth stages (such as the heading and fruit expansion stages).

• Soilless Culture and Tissue Culture Substrate: In soilless culture systems, MKP is the core phosphorus and potassium source of the nutrient solution, enabling precise control of nutrient concentration. It can also be used as a component of the culture medium for plant tissue culture, providing stable phosphorus and potassium minerals for tissue culture seedlings, ensuring their rooting and growth.

• Microbial Cultivation: In bio-fertilizer production, MKP provides phosphorus and potassium nutrients to beneficial bacterial strains (such as nitrogen-fixing bacteria and phosphorus-containing bacteria), promoting strain reproduction and enhancing the activity and efficacy of microbial fertilizers.

2. Food and Beverage Industry

• Food Additive: As an acidity regulator and buffer, MKP stabilizes the pH of food systems, preventing product spoilage due to acid-base fluctuations. It is commonly used in carbonated beverages, fruit juices, dairy products, jellies, canned goods, etc.; it can also act as a chelating agent, inhibiting the oxidation of metal ions in food and extending shelf life.

• Nutritional Fortifier: Rich in phosphorus and potassium, it can be added to sports drinks, infant formula, and nutritional meal replacements to replenish electrolytes lost after exercise or provide essential minerals for specific populations.

• Baking and Fermentation Aid: In baked goods such as bread and pastries, MKP provides a phosphorus source for yeast, accelerating yeast fermentation and improving dough fluffiness and texture; in beer brewing, it can adjust the pH of the fermentation liquid, promote yeast metabolism, and improve beer quality.

3. Pharmaceutical and Biological Fields

• Pharmaceutical Excipients and Reagents: As a pH buffer, MKP is commonly used in injectable and oral solutions to stabilize the physicochemical properties of drugs and ensure efficacy. It can also be formulated as an electrolyte supplement for treating hypokalemia and hypophosphatemia, or to replenish electrolytes in postoperative patients.

• Biological Laboratory Reagents: MKP is a core ingredient in the preparation of phosphate-buffered saline (PBS) (combined with dipotassium hydrogen phosphate), maintaining the acid-base stability of experimental systems. It is widely used in biochemical experiments such as cell culture, enzyme activity detection, and protein purification, and is one of the basic laboratory reagents.

4. Industrial Production Fields

• Water Treatment Agents: MKP can be used as a water quality stabilizer in circulating cooling water systems. It can chelate calcium and magnesium ions in water to prevent scale deposition and adjust the pH value of the water, reducing the corrosion rate of metal pipes. It is often used in combination with other water treatment agents.

• Electroplating and Surface Treatment: In electroplating processes, MKP acts as a buffer and complexing agent, stabilizing the pH of the plating solution and improving the uniformity and gloss of the coating, making it particularly suitable for electroplating precision instruments. It can also be used in metal surface phosphating to enhance coating adhesion.

• Flame Retardant Materials: When combined with other phosphates, MKP can be used to prepare flame-retardant plastics and fire-retardant coatings. At high temperatures, it forms a dense char layer, blocking oxygen and heat transfer and improving the flame retardancy rating of the material.

• Optical and Electronic Materials: In optical glass manufacturing, MKP acts as a clarifying agent and flux, improving the transparency and optical properties of the glass. In fuel cell applications, it can be used as an electrolyte component, conducting ions and stabilizing the internal environment of the battery.

5. Other Special Applications

• Feed Additives: It can be used as a phosphorus and potassium supplement in livestock and aquatic feed, promoting animal bone development and metabolism, and improving the growth performance and disease resistance of farmed species.

• Cosmetic Ingredients: In skincare products, toothpaste, and other daily chemical products, MKP can adjust the pH value of the system, maintain product stability, and help enhance the gentleness of the product.