Basic Product Specifications

Core Functions & Main Applications

1. Agriculture (Magnesium Microelement Fertilizer & Soil Conditioner)

• Magnesium Supplementation: Magnesium is the core component of chlorophyll, supplies essential nutrient for crops, corrects magnesium deficiency chlorosis (interveinal yellowing of leaves) and improves photosynthesis efficiency.
• Suitable Crops: Universal for fruit trees (apple, citrus, grape), vegetables (tomato, cucumber, pepper), cash crops (cotton, rapeseed, tea) and grain crops (wheat, corn, rice); especially for magnesium-demanding crops like potato and sugarcane.
• Soil Improvement: Strongly alkaline property neutralizes soil acidification, reduces soil active aluminum/iron toxicity, improves soil aggregate structure and enhances microbial activity; ideal for acid red soil and loam.

2. Industrial Manufacturing (Core Application Field)

• Refractory Material: Heavy/dead-burned MgO with high density and thermal stability is used for refractory bricks, furnace linings in steel, cement and glass industries (resists high temperature up to 2800℃).
• Rubber & Plastic Additive: Light MgO acts as an activator, vulcanizing agent and filler for rubber, improves tensile strength and aging resistance of rubber products; used as a stabilizer for plastic and PVC products.
• Chemical Raw Material: Produces magnesium salts (magnesium sulfate, magnesium chloride), magnesium hydroxide and other magnesium compounds; used as a neutralizer in acid waste water treatment.
• Other Industrial Uses: Coating filler (improves weather resistance), paper sizing agent, and desulfurizer in power plant flue gas treatment.

3. Building Materials Industry

• Used as a component of magnesium cement, wallboard, floor tile and fireproof board; improves the hardness, fire resistance and water resistance of building materials.
• Serves as a light aggregate in concrete, reduces concrete density while maintaining structural strength.

4. Environmental Protection

• Acid Neutralizer: Treats industrial acidic wastewater (electroplating, chemical, mining) to adjust pH value, removes heavy metal ions via precipitation.
• Flue Gas Desulfurization: Reacts with sulfur dioxide in flue gas to form magnesium sulfite/sulfate, achieves desulfurization effect, low cost and no secondary pollution.

5. Animal Husbandry & Feed Industry

• Feed Additive: Food-grade MgO supplements magnesium for livestock and poultry, maintains normal nerve and muscle function of animals, prevents magnesium deficiency-induced convulsion and growth retardation; applicable for pigs, chickens, cattle and aquaculture.

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Agricultural Application Methods & Dosage (per mu)

1. Base Fertilizer (Main Application): 5-10kg of agricultural grade MgO powder/granules, mixed evenly with soil or organic fertilizer before sowing/transplanting; for severely acidic soil, increase dosage to 10-15kg.
2. Top Dressing: 3-5kg, applied at crop tillering stage, flowering stage and fruit expansion stage; ditch application and soil covering are recommended to reduce loss.
3. Foliar Spraying: Mix with water to prepare 0.2-0.5% suspension (add a small amount of adhesive to improve adhesion), spray on leaves in morning/evening; spray 2-3 times at 7-10 day intervals for magnesium deficiency correction.
4. Mix Application: Can be mixed with nitrogen, phosphorus, potassium fertilizers and other microelement fertilizers (avoid mixing with acidic fertilizers alone to prevent nutrient volatilization).

Core Product Advantages

1. Multi-Type Customization: Classified by activity and purity into agricultural, light industrial and heavy industrial grades, fully meeting the needs of different application fields.
2. High Nutrient Availability: Agricultural grade MgO has high active magnesium content, easy to be absorbed by crops, quick effect for magnesium deficiency correction.
3. Excellent Physical & Chemical Properties: High thermal stability, strong alkali property, good chemical inertness; stable performance under normal storage and use conditions.
4. Wide Adaptability: Applicable for all soil types (especially acidic soils) and nearly all crops; multi-scenario use in agriculture, industry, building materials and environmental protection.
5. Eco-Friendly & Safe: No toxic and harmful substances, no residual pollution in soil and crops; neutralizes soil acidification, improves soil quality, conforms to green development concepts.

6. Cost-Effective: Mature industrial production process (magnesite calcination, brine precipitation), abundant raw materials, stable output and controllable cost.

Storage & Handling Notes

1. Store in a dry, cool, well-ventilated warehouse; avoid rain, moisture, direct sunlight and high temperature to prevent agglomeration (powder type).
2. Do not store or mix with acidic substances (fertilizers, chemicals, acids), water and edible products to avoid chemical reaction (exothermic reaction with water) and cross-contamination.
3. For heavy grade MgO blocks, prevent collision and breakage during transportation and storage; for powder type, use sealed packaging to reduce dust emission.
4. Safety Operation: Wear protective gloves, goggles and dust mask during operation; avoid direct contact with eyes and skin (strongly alkaline, may cause slight irritation); rinse with plenty of clean water immediately if splashed.
5. Shelf Life: 24 months under standard dry storage conditions; slightly agglomerated powder can be crushed and used normally, without affecting performance.
6. Transportation: Transport in covered vehicles, avoid rain, snow and moisture; light loading and unloading to prevent package damage.

Industrial Classification & Attribute

Magnesium Oxide is a typical basic inorganic fine chemical product, classified into agricultural grade (microelement fertilizer/soil conditioner), industrial grade (refractory material/additive) and food/feed grade (additive) according to application. It is mainly produced by magnesite calcination method and brine chemical precipitation method, with strict quality control of purity and activity. As a versatile basic chemical, it is a key raw material in agriculture, industry, building materials and environmental protection industries, with important economic and industrial value.

Common Customized Types (for Export/ Specific Scenarios)

1. Agricultural Grade MgO: Powder/granules, MgO ≥90%, Mg ≥55%, for crop fertilization and soil improvement
2. Light Burned MgO: High activity, MgO ≥95%, for rubber/plastic additive, water treatment and chemical synthesis
3. Dead Burned MgO: Low activity, high density, MgO ≥98%, for refractory materials and furnace linings
4. Feed Grade MgO: MgO ≥98%, food safety standard, for livestock and poultry feed additive
5. Granular MgO: Customizable particle size (2-4mm/3-5mm), low dust, easy for mechanical application in agriculture
6. High Purity MgO: MgO ≥99.5%, for electronic, ceramic and pharmaceutical industries

Key Industry Term Explanation

• Magnesia: The common English name for Magnesium Oxide, widely used in industrial trade and technical documents.
• Light Burned MgO: Produced by calcining magnesite at 600-900℃, high activity, light bulk density, also called active MgO.
• Dead Burned MgO: Produced by calcining magnesite at 1500-2000℃, low activity, high density and hardness, excellent refractory performance.
• Magnesium Deficiency Chlorosis: A common crop nutrient deficiency symptom caused by insufficient available magnesium, characterized by interveinal yellowing of leaves with green veins, mainly occurring in acidic and sandy soils.