What is Potassium Dihydrogen Phosphate?
Potassium Dihydrogen Phosphate (KH2PO4), commonly known as MKP (Monopotassium Phosphate), is a highly water-soluble salt that provides both potassium and phosphorus — two essential plant macronutrients — making it one of the most valuable specialty fertilisers for high-value crop production. Beyond agriculture, it also serves as a buffering agent and nutrient source in food, beverage, and fermentation applications due to its well-defined acid-base properties and biological compatibility.
Polychem Industries supplies Potassium Dihydrogen Phosphate in agricultural grade (MKP) and food grade to fertiliser companies, hydroponic suppliers, beverage manufacturers, and fermentation industry customers across India and internationally. Its complete water solubility and dual nutrient content make it one of the most efficient phosphorus and potassium fertilisers available, while its buffering capacity is valuable across various food and biotechnology applications.
Available Grades
| Grade | Form | Purity | Standard | Applications |
|---|---|---|---|---|
| Agricultural Grade (MKP) | White crystalline powder/granules | 98%+ (Food / Agricultural Grade) | Fertiliser / Agricultural | Fertigation, foliar spray, hydroponics |
| Food Grade | White crystalline powder | 99%+ | FSSAI / FCC | Food buffering agent, fermentation nutrient, beverages |
Applications & Uses
Fertigation & Foliar Sprays
One of the most important applications. MKP is widely used in fertigation systems and as a foliar spray to provide readily available phosphorus and potassium to crops, particularly valued during flowering and fruiting stages when phosphorus and potassium demand increases.
Hydroponics & Soilless Culture
A standard component in hydroponic nutrient solutions due to its complete water solubility and chloride-free composition, providing both phosphorus and potassium without the risk of chloride accumulation that can affect chloride-sensitive crops.
High-Value Horticultural Crops
Used extensively in high-value fruit, vegetable, and flower production where the combination of phosphorus (for root and flower development) and potassium (for fruit quality and disease resistance) is particularly beneficial.
Food & Beverage Buffering
Food Grade MKP is used as a buffering and acidity regulating agent in certain beverages and food products, helping maintain consistent pH and stability in the formulation.
Fermentation & Biotechnology
Used as a nutrient source and pH buffer in fermentation media for various industrial fermentation processes, providing essential phosphorus for microbial growth and metabolic activity.
Tissue Culture & Plant Propagation
Used as a phosphorus and potassium source in plant tissue culture media formulations, supporting the specific nutritional requirements of plant cells and tissues during in-vitro propagation.
Technical Specifications
Potassium Dihydrogen Phosphate — Key Properties
Why Source Potassium Dihydrogen Phosphate from Polychem Industries?
- Agricultural Grade (MKP) and Food Grade available
- Certificate of Analysis available on request
- 100% water-soluble with chloride-free composition
- Reliable bulk supply for fertiliser and hydroponic suppliers
- Competitive pricing with consistent year-round availability
- Export documentation experience for international shipments
