Magnesium Chloride (chemical formula MgCl₂) is a high-efficiency inorganic salt compound. It normally exists in anhydrous or hydrous forms, among which magnesium chloride hexahydrate MgCl₂ ⋅ 6H₂O is the common form. It appears as white or colourless crystalline granules, flakes or lumps, featuring strong hygroscopicity and complete water solubility. With its unique physical and chemical properties, Magnesium Chloride serves as an indispensable material in many fields including modern agriculture, food processing, road maintenance and industrial manufacturing.

Agricultural Applications and Nutrient Supplementation

In agricultural and horticultural production, Magnesium Chloride is a premium magnesium source supplement. Magnesium is the core constituent of chlorophyll molecules in plants, directly participating in photosynthesis, energy transfer and activation of multiple enzyme systems. When crops suffer from leaf yellowing, stunted growth or magnesium deficiency, solutions containing Magnesium Chloride can be applied via drip irrigation or foliar spraying. The nutrient can be rapidly absorbed by crops to accelerate chlorophyll synthesis and improve photosynthetic efficiency.

In addition, thanks to its high water solubility and low-residue characteristics, it is widely adopted in nutrient solution formulas for soilless culture and greenhouse cultivation, effectively boosting crop stress resistance, yield and quality.

Multi-functional Applications in Industry, Food and Environmental Protection

Besides its outstanding performance in agriculture, Magnesium Chloride has broad applications in industry and daily life:

• Food Industry: It acts as an important coagulant (the main component of bittern for tofu production) and mineral additive.

• Road Snow Melting and Dust Suppression: Owing to its low freezing point and hygroscopic exothermic property, it is widely used for winter road de-icing and anti-freezing, as well as dust control in mines and construction sites.

• Chemical Manufacturing: It is a core basic raw material for the production of metallic magnesium, flame retardants, cement and special magnesium-oxide building materials.

With wide adaptability, remarkable nutritional effects and versatile industrial value, Magnesium Chloride continuously provides strong support for efficient planting in modern agriculture and technological development across various industries.