Dicalcium phosphate (CaHPO₄) has the following main uses in agriculture and food industry:
1.Feed additives: Dicalcium phosphate is a commonly used feed phosphorus source. In the poultry and livestock industry, phosphorus is an important nutrient for animal growth and bone development. Dicalcium phosphate provides soluble phosphorus for animals to absorb and utilize, which helps to improve the nutritional balance of feed and promote the growth and healthy development of animals.
2.Flour improver: Dicalcium phosphate is often used as a flour improver, which can improve the processing performance and quality of flour. Dicalcium phosphate acts as a thickener and buffer in flour, which contributes to the stability and extensibility of dough, making flour easier to process and making better pastry products during baking.

3.Regulator of dairy products: Dicalcium phosphate can be used as a regulator in dairy products, especially for sour yogurt and lactic acid bacteria beverages. It regulates acidity and pH, increases the stability and taste of dairy products, and helps inhibit the growth of harmful microorganisms.
4.Cosmetics and oral hygiene products: Dicalcium phosphate can be used as one of the ingredients in cosmetics and oral hygiene products. It has dirt and odor-absorbing properties and is often used in products such as toothpaste, mouthwash, shampoo and skin care products to clean and condition.

To sum up, monocalcium phosphate is mainly used in agriculture as a feed additive, which contributes to the growth and healthy development of animals. In the food industry, it is often used in the improvement of flour formulations, the adjustment of dairy products, cosmetics and oral hygiene products, etc., and plays different functions.