Potassium phosphate monobasic 是生物测定时常用的缓冲液。它是中等浓度至高浓度的磷酸二氢钾水溶液，可用于制备磷酸盐缓冲液以及其他实验试剂。

Potassium dihydrogen phosphate is a potassium salt in which dihydrogen phosphate(1-) is the counterion. It has a role as a fertilizer. It is a potassium salt and an inorganic phosphate.

7778-77-0

H3KO4P

137.09

Potassium phosphate monobasic

H2O:13mg/mL (95.52 mM)
Powder: -20°C for 3 years
In solvent: -80°C for 2 years