Monopotassium Phosphate, commonly known as MKP, is a crucial inorganic compound with the chemical formula KH2PO4. Also recognized as Potassium Dihydrogen Phosphate, KDP, or Monobasic Potassium Phosphate, it is a highly versatile substance distinguished by its high purity and effectiveness. With a CAS number of 7778-77-0, MKP serves as an essential building block in numerous industrial, agricultural, and specialized applications globally. Its significance stems from its unique chemical properties and its role as a fundamental source of potassium and phosphorus.
MKP typically presents as colorless crystals or a white granular or crystalline powder. It is odorless and possesses a molar mass of 136.086 g/mol. A key characteristic is its excellent solubility in water, with approximately 22.6 grams dissolving in 100 mL of water at 20°C, and significantly increasing to 83.5 grams at 90°C, while being only slightly soluble in ethanol. Its melting point is around 252.6°C, and it decomposes at approximately 400°C to form potassium metaphosphate. These physical and chemical properties underscore its suitability for a wide array of uses, including its function as a buffering agent due to its mild acidity (pKa of 6.86).
One of the primary applications of Monopotassium Phosphate is in agriculture, where it is widely utilized as a highly efficient fertilizer. It is often labeled as NPK 0-52-34, indicating its rich content of phosphorus (52% P2O5 equivalent) and potassium (34% K2O equivalent), with no nitrogen. This makes it an ideal nutrient source, particularly during the flowering and fruiting stages of plant growth, promoting strong root development, enhanced fruit quality, and increased yield. MKP is a staple in modern agricultural practices, including greenhouse cultivation and hydroponic systems, where precise nutrient delivery is paramount for optimal crop health and productivity.
Beyond agriculture, MKP plays a vital role in the pharmaceutical and food industries. In medicine, Monopotassium Phosphate is a valuable electrolyte salt, primarily used for phosphate substitution in cases of hypophosphatemia, a condition characterized by abnormally low levels of phosphate in the blood. Its high purity makes it suitable for direct human consumption and medical applications. As a food additive, it functions as a buffering agent, sequestrant, and emulsifier. It is also an ingredient in various sports drinks, where it contributes to electrolyte balance and rehydration.
The versatility of Monopotassium Phosphate extends to advanced industrial and technological sectors, particularly in optics. Large single crystals of MKP are highly valued for their non-linear optical properties, making them indispensable in applications like second-harmonic generation (SHG) and other forms of non-linear frequency conversion of laser light. Potassium dideuterium phosphate (KDP), a deuterated variant of MKP, offers slightly different properties and is also widely used in these high-tech optical devices due to its enhanced performance in specific laser applications. The precise structural characteristics of MKP crystals allow for their integration into optical modulators, supporting the development of cutting-edge laser technologies.
The manufacturing of Monopotassium Phosphate typically involves the controlled reaction of phosphoric acid with potassium carbonate, followed by meticulous crystallization processes to achieve the desired purity and crystal form. NINGBO INNO PHARMCHEM CO.,LTD. is a dedicated manufacturer and supplier of premium quality Monopotassium Phosphate (KH2PO4), ensuring rigorous quality control and consistent product excellence. For industries and businesses seeking to buy or purchase bulk quantities of this essential compound, NINGBO INNO PHARMCHEM CO.,LTD. offers competitive price options and reliable global distribution. Our commitment to high-purity standards and customer satisfaction makes us a preferred partner for your MKP supply needs.
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