Monopotassium phosphate, MKP, (also potassium dihydrogenphosphate, KDP, or monobasic potassium phosphate), KH2PO4, is a soluble salt of potassium and the dihydrogen phosphate ion which is used as a fertilizer, a food additive and a fungicide. It is a source of phosphorus and potassium. It is also a buffering agent. Monopotassium phosphate is produced by the reaction of hot phosphoric acid and potassium hydroxide or extraction of phosphoric acid and potassium hydroxide is the major method of industrial production. The former has high purity and the process is simple. The latter utilizes wet extraction of phosphoric acid with low cost.1.Industrial grade Monopotassium Phosphate use as a buffer, culture agent; It is also used as a bacterial culture agent to synthesize theflavoring agent, the raw material of potassium phosphate, the culture agent, the fortifier, the leavening agent and the fermentation agent. 2.In Pharmaceutical Field, monopotassium phosphate is normally used in the production of penicillin. 3.In Industry Field, phospate - based industrial materials on water treatment, detergent, flame retardant. 4.In Food Industry, MKP could be used in baking products, monosodium glutamate. 5.In agriculture, it is used as high efficient phosphorus and potassium compound fertilizer. Potassium dihydrogen phosphate products are widely used in all kinds of cash crops, grain, melon and fruit. Vegetables and almost all kinds of crops.