Potassium Phosphate Monobasic Crystal, ACS Grade *

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About Potassium Phosphate Monobasic Crystal, ACS Grade

Potassium phosphate monobasic, often abbreviated as KH2PO4, is a chemical compound composed of potassium (K+), hydrogen (H+), and phosphate (PO43-) ions. It is also known as monopotassium phosphate or potassium dihydrogen phosphate.

Common Uses and Applications

  • Buffering Agent: Potassium phosphate monobasic is commonly used as a buffering agent in various biochemical and molecular biology applications. It helps maintain a stable pH in solutions, particularly in the acidic range.
  • Fertilizer: It is used in agriculture as a source of potassium and phosphorus, essential nutrients for plant growth.
  • Food Additive: It may be used as a food additive in certain products, primarily as a pH regulator or as a source of phosphorus.
  • Laboratory Reagent: It is used as a reagent in chemical and biochemical experiments and analyses.


Chemistry Table


Potassium Phosphate Monobasic Crystal, ACS Grade Specifications

Assay Min 99.0%
pH of a 5% Solution @ 25°C 4.1-4.5
Insoluble Matter, Calcium and Ammonium Hydroxide Ppt 0.01%
Loss on Drying @ 105°C 0.2%
Chloride 0.001%
Nitrogen Compounds 0.001%
Sulfate 0.003%
Heavy Metals (as Pb) 0.001%
Iron 0.002%
Sodium 0.005%

Safety and Shipping Information

Please contact us to request a Safety Data Sheet (SDS) and Certificate of Analysis (COA) for Potassium Phosphate Monobasic Crystal, ACS Grade.

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