... Widely used in molecular biology, biochemistry, and chromatography. Potassium phosphate occurs in several forms: monobasic (KH2PO4), dibasic (K2HPO4), ... and tribasic (K3PO4). Neutral potassium phosphate buffer solutions may be prepared with a mixture of the ... pH stability as opposed to NaP buffers. Potassium Phosphate has also been used for the extraction of keratohyalin ...