Mono Potassium Phosphate
MKP, Potassium Dihydrogen Phosphate
- CAS
- 7778-77-0
- EC
- 231-913-4
- Food Code
- E340
- Sectors
- Food & Nutrition, Agriculture
Mono Potassium Phosphate (CAS 7778-77-0) is an inorganic potassium salt of phosphoric acid, supplied as a highly water-soluble white crystalline powder that provides a balanced source of phosphorus and potassium, and is used as a fertilizer and as a buffering agent and nutrient source in food and agriculture.
Typical Properties
| Molecular formula | H3O4P.K |
|---|---|
| Molecular weight | 136.09 g/mol |
| Appearance | White powder |
| Form | powder |
| Color | White transparent |
| Odor | Odorless |
| Melting point | 253 °C |
| Boiling point | > 450 °C |
| Density | 2.34 g/cm³ |
| Water solubility | 222 g/L (20 °C) |
| pH | 4.2-4.6 (20g/l, H2O, 20°C) |
| HS code | 28352400 |
| Grades available | Food Grade |
Typical literature values for identification; lot-specific results are stated on the certificate of analysis (COA) and the safety data sheet (SDS) that accompany every delivery.
Mono Potassium Phosphate
Applications
Used as a fertilizer, buffering agent, and nutrient source in agriculture and food industries. In pharmaceuticals, it serves as a stabilizer and electrolyte supplement. It also functions as a corrosion inhibitor and pH regulator in industrial formulations.
Safety & Risks
Non-toxic but mildly irritating to skin and eyes. Avoid mixing with strong acids.
Packaging
Supplied in 25 kg polypropylene bags or bulk sacks. Store cool, dry, and sealed.