Manganese Carbonate 43–44% Mn for Soil Amendment Use
Short Product Description
Manganese Carbonate 43–44% Mn for Soil Amendment is a stable manganese source used in agricultural micronutrient formulations. It provides controlled Mn content with low impurity levels, ensuring compatibility with fertilizer blends. Suitable for correcting manganese deficiency in various soil types.

Technical Specifications
| Parameter | Typical Value |
|---|---|
| MnCO₃ Purity | ≥ 98% |
| Manganese (Mn) Content | 43–44% |
| Particle Size | 80–200 mesh |
| Moisture | ≤ 1.5% |
| Bulk Density | 0.8–1.2 g/cm³ |
| Solubility in Dilute Acid | ≥ 95% |
| Iron (Fe) | ≤ 0.1% |
| Calcium (Ca) | ≤ 0.3% |
| Magnesium (Mg) | ≤ 0.3% |
| Lead (Pb) | ≤ 10 ppm |
| Arsenic (As) | ≤ 5 ppm |
| Cadmium (Cd) | ≤ 5 ppm |
Key Features
- Stable manganese source for long-term soil micronutrient supply
- Controlled Fe, Ca, Mg levels to minimize nutrient antagonism in soil systems
- Low heavy metal content (Pb, Cd, As) supporting fertilizer safety compliance
- Consistent particle size for uniform blending in fertilizer production
- Higher Mn availability compared to less soluble manganese mineral sources
- Manganese Carbonate 43–44% Mn for Soil Amendment ensures reliable Mn correction efficiency
Applications
- Soil micronutrient fertilizers – provides manganese to correct Mn-deficient soils and improve crop growth
- NPK fertilizer blending – compatible with compound fertilizers for balanced nutrient formulation
- Foliar fertilizer raw material – processed into soluble Mn formulations for rapid plant uptake
- Horticulture and specialty crops – supports chlorophyll synthesis and enzyme activation
- Manganese Carbonate 43–44% Mn for Soil Amendment – used in base fertilizers to maintain soil Mn levels
Problems This Product Solves
- Manganese deficiency in alkaline or sandy soils → provides a stable Mn source for plant uptake
- Excess iron interference in soil micronutrients → controlled Fe improves Mn availability
- Calcium and magnesium imbalance → low Ca/Mg content supports accurate nutrient formulation
- Heavy metal contamination risks in fertilizers → low Pb, Cd, As ensures compliance
- Poor dispersion in fertilizer blends → uniform particle size improves mixing efficiency
Packaging & Supply
- 25 kg kraft paper bags with PE liner
- Palletized export packaging for safe handling
- Available for 20GP / 40HQ container shipment
- Samples available for soil and fertilizer testing
Customization & Technical Support
- Adjustable Mn content based on application requirements
- Low-iron (Fe) grades available for sensitive formulations
- Custom particle size for fertilizer blending performance
- Technical support for soil amendment and fertilizer formulation
FAQ
1. How does manganese carbonate compare to manganese sulfate in soil applications?
Manganese carbonate provides a slower-release Mn source compared to manganese sulfate. It is more suitable for long-term soil amendment rather than immediate correction.
2. What is the advantage of using Manganese Carbonate 43–44% Mn for Soil Amendment?
It offers stable Mn content with controlled impurities, ensuring consistent performance in fertilizer formulations and reduced risk of heavy metal contamination.
3. Do Fe, Ca, and Mg impurities affect soil nutrient balance?
Yes, excess Fe can reduce Mn uptake, while Ca and Mg may interfere with micronutrient balance. Controlled impurity levels improve overall nutrient efficiency.
4. What are the heavy metal limits for agricultural use?
Lead (Pb), arsenic (As), and cadmium (Cd) are maintained at low ppm levels to meet fertilizer safety standards and minimize environmental risk.
5. How should manganese carbonate be stored?
Store in a dry, ventilated environment away from moisture. Proper storage maintains product stability and prevents caking.