Magnesium Nitrate Hexahydrate丨CAS 13446-18-9

Magnesium nitrate hexahydrate丨CAS 13446-18-9, is a highly soluble, crystalline inorganic salt commonly used in agriculture, industry, and chemical synthesis. It serves as a vital source of magnesium and nitrogen, both essential elements for plant and microbial metabolism. This compound combines the plant-nutrient benefits of magnesium and nitrate, making it a preferred fertilizer in high-value crop systems, hydroponics, and foliar feeding.

A. Agriculture and Horticulture
1.Fertilizer and Nutrient Source
o Supplies magnesium (Mg²⁺), essential for chlorophyll formation, photosynthesis, and enzyme activation.
o Provides nitrate nitrogen (NO₃⁻), which is immediately available to plants, supporting vegetative growth and protein synthesis.
o Used in fertigation systems, hydroponics, and soil-based cropping for balanced crop nutrition.
2.Foliar Feeding
o Easily dissolves in water, making it suitable for foliar spray applications to correct magnesium deficiency rapidly.
o Beneficial for crops like tomatoes, citrus, grapes, potatoes, and leafy vegetables which are highly sensitive to magnesium deficiency.
3.Compatibility with Other Nutrients
o Free of chloride, sulfate, and ammonium, making it compatible with calcium nitrate, potassium nitrate, and micronutrients in multi-nutrient fertilization programs.
B. Hydroponics and Controlled-Environment Agriculture (CEA)
● Used extensively in soilless cultivation systems such as hydroponics and vertical farming.
● Provides clean, highly soluble nutrition without interfering ions, ensuring precise nutrient control and plant health in recirculating systems.
C. Industrial Applications
1.Catalyst and Reagent in Chemical Synthesis
o Functions as a nitrating agent and magnesium source in various industrial and lab-scale chemical processes.
o Sometimes used in the preparation of explosives, ceramics, and specialty catalysts.
2.Heat Transfer Salts and Desiccants
o Used in the formulation of heat storage materials and desiccant blends due to its high water content and thermal behavior.
3.Wastewater Treatment
o Occasionally employed to improve biological nutrient removal (BNR) in wastewater treatment, as magnesium can enhance microbial activity.

A. Dual-Nutrient Supply for Plants
● Magnesium (Mg) is a central atom in chlorophyll and plays a crucial role in energy transfer and photosynthetic efficiency.
● Nitrate (NO₃⁻) is a clean and efficient form of nitrogen, enhancing shoot growth, protein synthesis, and cell expansion.
B. High Solubility and Bioavailability
● Readily dissolves in water without residue, ensuring uniform application through irrigation or foliar spray.
● Provides immediate uptake, reducing the lag time in nutrient absorption, especially important in deficiency correction.
C. Non-toxic and Eco-Friendly
● Free of harmful contaminants like chlorides or heavy metals, making it suitable for sensitive crops and organic systems when used judiciously.
● Promotes sustainable nutrient management, reducing the need for multiple individual inputs.
D. Enhances Crop Quality and Yield
● Correcting magnesium deficiency improves leaf color, fruit firmness, and sugar content, particularly in fruiting and flowering crops.
● Supports uniform flowering and fruit setting, contributing to higher quality yields.

Magnesium nitrate hexahydrate丨CAS 13446-18-9 is a highly efficient, dual-purpose fertilizer and industrial reagent that provides essential magnesium and nitrate nitrogen in a form that is rapidly bioavailable and environmentally compatible. Its use in modern agriculture, hydroponics, chemical manufacturing, and environmental treatment underscores its versatility and importance. When applied responsibly and as part of a well-managed nutrient program, magnesium nitrate hexahydrate contributes significantly to plant health, yield improvement, and resource efficiency, making it a key tool in sustainable crop production and beyond.