Potassium Dihydrogen Phosphate, ≥98%, Alfa Aesar™

Loses H2O at 400°C, forming metaphosphate

Manufacturer: Alfa Aesar A121420E

Quantity 2500g

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Catalog No. AAA121420E

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    Chemical Identifiers

    Assay Percent Range ≥98%
    Molecular Formula KH2PO4
    Formula Weight 136.09
    Chemical Name or Material Potassium Dihydrogen Phosphate


    Formula Weight 136.09
    Quantity 2500g
    Density 2.338
    Assay Percent Range ≥98%
    Molecular Formula KH2PO4
    CAS 7778-77-0
    Storage Note 1 Hygroscopic
    Chemical Name or Material Potassium Dihydrogen Phosphate


    Potassium dihydrogen phosphate is used as a food additive, fertilizer (NPK), paint additive, coating additive, adhesive, buffering agent and in optical modulators. It is extensively used in research and analytical laboratories as a buffer in mobile/sample preparations for analysis by high pressure liquid chromatography (HPLC) and also in organic synthesis. MKP, monopotassium phosphate, owing to its non-linear optical properties, is used in optical modulators and for second-harmonic generation (SHG).

    Soluble in water. Slightly soluble in ethanol.

    Loses H{2}O at 400°, forming metaphosphateHygroscopic.


    SDS & Safety Documents

  • Description & Specifications
  • Safety and Handling

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