Potassium Dihydrogen Phosphate, ≥98%, Thermo Scientific Chemicals

Description

Loses H₂O at 400°C, forming metaphosphate

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).

This Thermo Scientific Chemicals brand product was originally part of the Alfa Aesar product portfolio. Some documentation and label information may refer to the legacy brand. The original Alfa Aesar product / item code or SKU reference has not changed as a part of the brand transition to Thermo Scientific Chemicals.

Applications
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).

Solubility
Soluble in water. Slightly soluble in ethanol.

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

Specifications

Chemical Identifiers

• CAS: 7778-77-0
• Molecular Formula: H2KO4P
• Molecular Weight (g/mol): 136.08
• MDL Number: MFCD00011401 MFCD00147253
• InChI Key: GNSKLFRGEWLPPA-UHFFFAOYSA-M
• Synonym: potassium dihydrogen phosphate, monopotassium phosphate, potassium phosphate monobasic, potassium phosphate, monobasic, potassium acid phosphate, phosphoric acid, monopotassium salt, monobasic potassium phosphate, monopotassium monophosphate, monopotassium dihydrogen phosphate, monopotassium orthophosphate
• PubChem CID: 516951
• ChEBI: CHEBI:63036
• IUPAC Name: potassium dihydrogen phosphate
• SMILES: [K+].OP(O)([O-])=O

• Melting Point: 253°C
• Quantity: 500 g
• Assay Percent Range: ≥98%
• Solubility Information: Soluble in water. Slightly soluble in ethanol.
• Formula Weight: 136.09
• Sensitivity: Hygroscopic
• Density: 2.338
• Chemical Name or Material: Potassium Dihydrogen Phosphate

RUO – Research Use Only