Magnesium nitrate fertilizer manufacturers

Buyers should prioritize purity levels (typically 98% or higher) and the specific nutrient content, which usually consists of 10.5% Nitrogen (N) and 15% Magnesium Oxide (MgO). Ensure the product is 100% water-soluble to prevent clogging in fertigation systems. For industrial or high-end agricultural use, check the pH value (usually 4.0-7.0) and ensure heavy metal content (Lead, Arsenic, Cadmium) is well below international safety thresholds.

As a chemical product, Magnesium Nitrate must have a Material Safety Data Sheet (MSDS) and a Certificate of Analysis (COA) for every batch. For European markets, REACH registration is essential. Ensure the supplier complies with ISO 9001 for quality management and ISO 14001 for environmental standards. Additionally, verify if the product meets the GlobalG.A.P. requirements if it is intended for use in certified organic-standard supply chains.

Request samples to check for caking resistance; high-quality Magnesium Nitrate should be in white crystalline or granular form and remain free-flowing. Test the dissolution rate in water—it should leave zero residue. Furthermore, evaluate the packaging integrity, as Magnesium Nitrate is hygroscopic (absorbs moisture); it requires moisture-proof PE/PP bags (25kg or 50kg) with an inner plastic liner to prevent clumping during long-term sea transit.

Magnesium Nitrate is primarily used in high-value crop cultivation (such as greenhouse vegetables, fruits, and flowers) via fertigation or foliar spraying. Its main function is to prevent magnesium deficiency, which is crucial for chlorophyll synthesis and photosynthesis. Unlike Magnesium Sulfate, the nitrate form provides highly mobile nitrogen, allowing for faster nutrient uptake and improved crop yield and quality.

Magnesium Nitrate is classified as an Oxidizer (Class 5.1 hazardous material) under the IMDG Code (UN Number 1474). This means it requires specialized hazardous goods packaging and must be handled by carriers with DG (Dangerous Goods) certifications. Buyers must account for higher freight costs and longer booking lead times compared to non-hazardous fertilizers.

Utilize Made-in-China.com's secured payment services to protect your funds until the goods are shipped. Always conduct a third-party factory audit (such as SGS or Intertek) to verify the supplier's production capacity and storage safety. For first-time orders, use Letter of Credit (L/C) or staged payments (30% deposit, 70% against BL) to mitigate financial risk.

Prices are heavily influenced by the cost of raw materials (Nitric Acid and Magnesium sources) and seasonal demand. Negotiate based on volume tiers; ordering in full container loads (FCL) can significantly reduce the per-unit shipping and handling cost. Ask for a long-term supply agreement to lock in prices against market volatility, especially during the peak agricultural planting seasons.

Many countries require a Fertilizer Import License or registration with the local Ministry of Agriculture. Ensure the supplier provides a Pre-Shipment Inspection (PSI) report if required by your country's regulations. Incorrect labeling can lead to customs seizures or heavy fines, so ensure all bags are marked with the correct chemical name, net weight, and country of origin in the destination's required language.