Monoammonium Phosphate MAP
Ammonium Dihydrogen Phosphate; Ammonium Dihydrogenorthophosphate; Monoammonium Ortophosphate; MAP
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What is monoammonium phosphate?
Monoammonium phosphate (MAP), also known as ammonium monophosphate, is a versatile chemical compound with the formula NH₄H₂PO. It appears as a white, crystalline powder and is highly soluble in water. Due to its phosphorus (P) and nitrogen (N) content, MAP is a valued fertilizer used in agriculture, and it also finds wide applications in the food, chemical, fire-fighting, and pharmaceutical industries.
Physicochemical properties
Monoammonium phosphate is an odorless powder (white or slightly creamy) with a crystalline structure. Its most important physical characteristic is excellent solubility in water, which results in the rapid release of nutrients and easy use in irrigation systems and sprays. MAP has a slightly acidic pH, which helps regulate soil pH and increases the uptake of nutrients by plants.
Chemically, MAP consists mainly of phosphorus and nitrogen. This provides plants with two essential nutrients, supporting the development of their root system and promoting vigorous growth of their above-ground parts.
How does monoammonium phosphate (MAP) work?
Monoammonium phosphate (MAP) primarily acts as a source of two essential nutrients for plants: phosphorus and nitrogen. Phosphorus supports the development of the root system, improves flowering, and accelerates fruit ripening, while nitrogen stimulates the growth of the plant’s above-ground parts. Its slightly acidic pH also enhances the availability of micronutrients from the soil.
MAP (monoammonium phosphate) is particularly effective in fertigation systems and foliar feeding. In fertigation, the fertilizer is delivered directly to the root zone through an irrigation system, ensuring even distribution of nutrients. In foliar feeding, MAP applied to the leaves quickly replenishes deficiencies of phosphorus and nitrogen.
Application of monoammonium phosphate – agriculture
Monoammonium phosphate (MAP), as mentioned, has wide applications in agriculture, where it serves primarily as a high-performance phosphorus-nitrogen fertilizer. It supports the development of the root system, intensifies flowering processes, and stimulates the growth of above-ground parts. It is an ideal fertilizer for use on arable land, pastures, in orchards, vegetable crops, and perennial plantations, from early spring to late summer.
MAP in the food industry
In the food industry, MAP functions as a food additive (E342), where it is used as an acidity regulator, leavening agent, and stabilizer (in food production). It is also an ingredient in baker’s yeast, as it effectively supports the fermentation process during bread baking. Due to these properties, monoammonium phosphate is indispensable in the production of high-quality food products; it ensures their proper structure and durability, thus maintaining consistency with the declared properties.
Monoammonium phosphate in the chemical industry
MAP also plays an important role in the chemical industry, where it is used as an ingredient in detergents, helping to remove mineral deposits, and as an anti-caking agent, preventing powders from clumping. These properties make MAP not only a very effective fertilizer but also a highly versatile ingredient in production processes where stability and purity of the final products are required.
Other applications of monoammonium phosphate
In the fire-fighting industry, monoammonium phosphate is used as an ingredient in dry powder fire extinguishers for extinguishing class A, B, and C fires, including solid materials, flammable liquids, and combustible gases. Its action is simple yet effective: it suppresses the combustion process by isolating the flammable material from oxygen.
Additionally, MAP is used in pharmaceuticals, where it serves as a pH regulator in drug formulations and helps maintain the stability of pharmaceutical preparations.
The monoammonium phosphate we offer is a high-quality product that meets the requirements of various industry sectors.
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