Potassium dihydrogen phosphate is an inorganic salt compound with the chemical formula KH2PO4 and a relative molecular weight of 136.09. It appears as colorless tetragonal crystals or white granular powder, with a density of 2.338 g/cm3 and a melting point of 252.6°C. It is highly deliquescent and soluble in water, with its aqueous solution being weakly acidic and insoluble in ethanol.

Potassium dihydrogen phosphate is primarily used as a high-efficiency fertilizer. It is used in industry and medicine as a bacterial culture medium and in pharmaceuticals. In the food industry, it can be made into baking powder, monosodium glutamate, and yeast extract.

PRODUCT USES

1. Promote Growth and Metabolism

It quickly replenishes phosphorus and potassium, promotes the synthesis of organic substances such as protein and carbohydrates, enhances leaf photosynthesis, and promotes strong stems and rich green leaves.

It regulates flower bud differentiation, increases flowering number, improves fruit set, and reduces flower and fruit drop.

2. Improves Fruit Quality

Spraying during fruit expansion promotes sugar accumulation, improving color and taste in crops such as watermelon, grapes, and tomatoes. Used in conjunction with calcium fertilizer, it can reduce fruit cracking (e.g., watermelon) or navel rot (e.g., tomato).

3. Enhances Stress Resistance

It improves crop resistance to drought, cold, dry and hot winds, and pests and diseases, while promoting wound healing.