Potassium phosphate is used as a fertilizer and food additive. It is also used in optical modulators and for non-linear optics such as second-harmonic generation (SHG). It is involved in the phase-transfer catalyzed preparation of acetylenes from the corresponding vicinal dibromo compounds through double dehydrobromination. It is also useful for the oxidative coupling of thiols to disulfide.

Potassium phosphate tribasic is a reagent with a very high buffering capacity. It is widely used in molecular biology, biochemistry, and chromatography, used for the extraction of keratohyalin protein from bovine tissue, to study the effects of freezing and thawing on the stability of proteins sensitive to conformational changes. It is used as a food additive for its properties as an emulsifier, foaming agent, and whipping agent.

Potassium phosphate tribasic has been used:

in lysis buffer for the isolation of protein from Gram positive bacteria

as a reagent for the scalable synthesis and post-modification of NU-1000 (mesoporous metal-organic framework)

as a reagent for the plasma membrane preparation of Lilium davidii or Oryza sativa with high purity

Product Usage

Potassium Phosphate refers to a group of salts composed of phosphorus and potassium (such as MKP and DKP), serving multiple critical roles in modern production. In the food industry, it acts as a superior acidity regulator, emulsifier, and moisture-retention agent, widely used in instant beverages, dairy products, and meat processing to optimize texture and extend shelf life. In agriculture, it is a premium, 100% water-soluble phosphorus-potassium compound fertilizer that significantly enhances crop disease resistance and promotes flower bud differentiation. Within medicine and biotechnology, it is frequently employed as a pH buffering agent to regulate pharmaceutical environments or as a nutrient source in microbial culture media. Additionally, it is used industrially as a metal surface treatment agent and a raw material for specialized coatings.