What is Magnesium Nitrate?
Magnesium Nitrate (Mg(NO3)2.6H2O) is a highly water-soluble salt that provides two essential plant nutrients — magnesium and nitrate nitrogen — in a single, readily available form. It is a white to off-white crystalline solid commonly supplied as the hexahydrate, and is valued in agriculture for correcting magnesium deficiency while simultaneously supplying nitrogen, as well as in certain industrial applications taking advantage of its oxidising and hygroscopic properties.
Polychem Industries supplies Magnesium Nitrate in agricultural grade and industrial grade to fertiliser blenders, horticultural suppliers, and industrial chemical companies across India and internationally. Its dual nutrient supply (Mg and N) combined with complete water solubility make it a valuable specialty fertiliser, particularly for fertigation and foliar application where rapid correction of magnesium deficiency is required.
Oxidiser Safety Notice
Magnesium Nitrate is an oxidising agent and should be stored away from combustible materials, flammable substances, and organic materials. It can accelerate fires if it comes into contact with combustibles. Store in a cool, dry, well-ventilated area in sealed containers, away from sources of ignition.
Available Grades
| Grade | Form | Purity | Standard | Applications |
|---|---|---|---|---|
| Agricultural Grade | White to off-white crystalline granules | 98%+ (Agricultural / Industrial Grade) | Fertiliser / Agricultural | Fertigation, foliar spray, water-soluble fertiliser blends |
| Industrial Grade | White crystalline granules | 98%+ | Industrial | Nitric acid concentration, pyrotechnics, chemical synthesis |
Applications & Uses
Fertigation & Foliar Sprays
Used extensively in fertigation systems and foliar sprays to correct magnesium deficiency in crops while simultaneously supplying nitrate nitrogen, providing fast, visible correction of magnesium deficiency symptoms such as interveinal chlorosis.
Water-Soluble Fertiliser Blends
Used as a component in water-soluble fertiliser blends (WSF) and specialty fertiliser formulations designed for fertigation, hydroponics, and high-value crop production requiring precise nutrient delivery.
High-Value & Fruit Crops
Particularly valued in fruit crop production including grapes, citrus, and other magnesium-sensitive crops where magnesium deficiency can significantly impact yield, fruit quality, and overall plant health.
Nitric Acid Concentration
Used industrially as a dehydrating agent in the concentration of dilute nitric acid, taking advantage of its strong hygroscopic properties to absorb water and shift the concentration equilibrium during nitric acid production processes.
Pyrotechnics & Specialty Chemical Uses
Used in certain pyrotechnic and specialty chemical formulations taking advantage of its oxidising properties, requiring careful handling in compliance with applicable safety regulations.
Hydroponics & Soilless Culture
Used as a magnesium and nitrogen source in hydroponic nutrient solutions, valued for its complete water solubility and compatibility with other nutrient salts in complex nutrient formulations.
Technical Specifications
Magnesium Nitrate — Key Properties
Why Source Magnesium Nitrate from Polychem Industries?
- Agricultural Grade and Industrial Grade available
- Certificate of Analysis available on request
- Dual nutrient supply — magnesium and nitrate nitrogen in one product
- Complete water solubility for fertigation and hydroponic use
- Reliable bulk supply for fertiliser blenders and industrial customers
- Export documentation experience for international shipments
