Buying Guide: Manganese Sulfate Monohydrate

Reagent Grade Pink Powder Manganese Sulfate Monohydrate (MnSO₄·H₂O)
If Manganese Sulfate Monohydrate is essential to your operations—whether in agriculture, animal feed, chemical manufacturing, or battery production—this guide offers a thorough overview to help you make an informed procurement decision.
What is Manganese Sulfate Monohydrate?
Manganese Sulfate Monohydrate (MnSO₄·H₂O) is a pink to pale-red crystalline solid, consisting of manganese, sulfur, and oxygen. It is the most common water-soluble manganese salt, often used as a manganese supplement in fertilizers and animal feeds, and as a precursor in industrial and battery-grade chemicals.
Its high solubility in water and its essential role as a micronutrient make it critical in plant and animal health, while its purity makes it valuable in chemical synthesis and battery applications.
How to Identify Manganese Sulfate Monohydrate
Common Identifiers and Forms:
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Appearance: Light pink or pale red crystalline powder
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CAS Number: 10034-96-5
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Molecular Formula: MnSO₄·H₂O
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Molecular Weight: 169.01 g/mol
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EINECS No.: 232-089-9
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Solubility: Highly soluble in water
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Odor: Odorless
Chemical Properties of Manganese Sulfate Monohydrate

| Property |
Description |
| Form |
Crystalline powder |
| Color |
Pink to pale red |
| Purity |
98–99.5% (depending on grade) |
| pH (5% solution) |
3.0 – 5.0 |
| Solubility in Water |
52 g/100 mL at 20°C |
| Manganese (Mn²⁺) Content |
Typically 31.5% – 32.5% |
| Melting Point |
Decomposes >700°C |
| Odor |
Odorless |
Applications of Manganese Sulfate Monohydrate
1. Agriculture
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Used as a micronutrient fertilizer to correct manganese deficiencies in soil
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Enhances plant enzyme systems and chlorophyll synthesis
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Commonly applied in soybean, cotton, wheat, and citrus crops
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Suitable for soil application and foliar spray
2. Animal Feed
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Functions as a key trace mineral in feed formulations for poultry, cattle, and swine
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Supports bone formation, enzyme activation, and metabolic function
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Must meet feed-grade purity standards (FAMI-QS, AAFCO, EU requirements)
3. Industrial Applications
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Used in the production of dry cell batteries (manganese dioxide)
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Intermediate in manufacturing other manganese salts
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Employed in dyeing, ceramics, and catalyst systems
4. Water Treatment
5. Chemical Synthesis
Types & Grades of Manganese Sulfate

| Grade |
Use Case |
Key Features |
| Agricultural Grade |
Fertilizers, foliar applications |
High solubility, >98% purity |
| Feed Grade |
Animal nutrition supplements |
Complies with global feed safety standards |
| Industrial Grade |
Battery materials, ceramics, synthesis |
High Mn content, low heavy metals |
| Reagent/Pharma Grade |
Lab and specialized synthesis |
Ultra-pure, low contamination risk |
Is Manganese Sulfate a Reducing Agent?
No. Manganese Sulfate is not a reducing agent. It provides Mn²⁺ ions, but it does not participate in electron-donating redox reactions on its own. It can, however, be used in redox systems when paired with other agents in chemical synthesis.
Is Manganese Sulfate Monohydrate Toxic?
Manganese sulfate is safe when used according to guidelines. However, excessive exposure to manganese dust or ingestion may lead to toxicity, especially in industrial settings.
Safety Guidelines:

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Use PPE (mask, gloves, goggles) during handling
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Store in cool, dry, and sealed containers
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Refer to MSDS and adhere to occupational exposure limits
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Feed and food-grade products must meet heavy metal limits
Is Manganese Sulfate Flammable or Explosive?
No, Manganese Sulfate Monohydrate is non-flammable and non-explosive. However:
Manganese Sulfate vs. Other Manganese Compounds
| Compound |
Solubility |
Mn Content |
Common Uses |
| Manganese Sulfate |
High |
~32% |
Agriculture, feed, batteries |
| Manganese Oxide (MnO₂) |
Insoluble |
~63% |
Batteries, glass, catalysis |
| Manganese Carbonate |
Slightly soluble |
~43% |
Fertilizers, feed, ceramics |
| Manganese Chloride |
Soluble |
~30% |
Dyeing, catalyst, lab use |
Purity Standards
| Grade |
Typical Purity |
Standards |
| Agricultural Grade |
≥98% MnSO₄·H₂O |
Compliant with ISO, REACH |
| Feed Grade |
≥99% |
FAMI-QS, AAFCO, EU Feed Additive Directive |
| Industrial Grade |
98–99% |
Low impurities, moisture-controlled |
| Reagent Grade |
≥99.5% |
Lab-certified, low trace metal levels |
Certifications may include ISO9001, FAMI-QS, HALAL, KOSHER, or REACH compliance, depending on application and market.
Price & Supplier Considerations
Factors Influencing Cost:
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Purity level (feed, reagent, or technical)
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Particle size & solubility
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Packaging type (25kg bags, 500kg jumbo bags)
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Origin (China, India, EU)
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Global demand for battery materials
Supplier Checklist:

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Provide COA, MSDS, TDS
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Batch-tested for heavy metals (Pb, Cd, As)
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Clear expiry & storage instructions
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Capability to support bulk or custom orders
How to Buy Manganese Sulfate Monohydrate
1. Define Application:
Clarify if the product is for agricultural, feed, industrial, or lab use.
2. Choose the Grade:
Select purity and particle size based on application (e.g., fine powder for foliar sprays).
3. Request Documentation:
Must include Certificate of Analysis, MSDS, and Technical Data Sheet.
4. Trial Sample (Optional):
Test compatibility and performance in your specific use case.
5. Evaluate Packaging Options:
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Standard: 25kg PE-lined woven bags
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Bulk: 500kg or 1000kg jumbo sacks
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Custom labels available for large or export orders
6. Partner With Trusted Suppliers:
Work with vendors offering consistent quality, compliance, stock availability, and global delivery.
Conclusion
Manganese Sulfate Monohydrate is an essential material for boosting crop productivity, supporting animal health, and advancing industrial applications such as battery materials and catalyst synthesis. Its high solubility, moderate cost, and reliable performance make it a critical chemical in both traditional and high-tech sectors.
To ensure value and effectiveness:
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Choose the right grade for your application
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Handle and store it with safety in mind
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Rely on certified, quality-assured suppliers