Manganese(II) Sulfate Monohydrate (MnSO₄·H₂O) - A Key Player in Agriculture, Batteries & Industry

Manganese(II) sulfate monohydrate (MnSO₄·H₂O) is an important inorganic compound widely used in agriculture, industry, and chemical processes. As a water-soluble manganese salt, it serves as a crucial source of manganese, a micronutrient essential for plant growth, animal health, and various industrial applications.

This pale pink crystalline solid is the most common form of manganese sulfate and is primarily produced through the reaction of manganese dioxide (MnO₂) with sulfuric acid (H₂SO₄). It plays a key role in industries ranging from fertilizers and animal feed to battery manufacturing and ceramics. Its high solubility in water makes it particularly valuable in formulations requiring a readily available manganese source.

Chemical Properties:

Property	Details
Chemical Formula	MnSO₄·H₂O
CAS	10034-96-5
Molecular Weight	169.02 g/mol
Melting Point	700 °C
Boiling Point	850 °C
Bulk Density	1000-1200 kg/m3
Density	2.95 g/cm³
Refractive Index	1.508-1.522
Storage Temperature	Store at +15°C to +25°C.
Solubility	5-10 g/100 mL at 21°C
Form	Solid
Color	Pink
Odor	Odorless
PH	3.0-3.5 (50g/l, H2O, 20℃)
Water Solubility	5-10 g/100 mL at 21 ºC
Sensitive	Hygroscopic

Below is the data from our Certificate of Analysis and our product is fully complied with the standard.

Item	Unit	Specification
Manganese Sulfate	w/%	≥ 98.0 %
Manganese (as Mn)	w/%	≥31.0
Arsenic (As)	ppm	≤3.0
Lead (Pb)	ppm	≤5.0
Cadmium (Cd)	ppm	≤10.0
Water insoluble matter	w/%	≤0.1
Fineness (through 250mm test sieve)	w/%	≥95
QUALIFIED BY THE TEST OF GB/34468-2017

Applications and Usages

🌱 Agriculture & Fertilizers

Manganese(II) sulfate monohydrate is widely used as a micronutrient fertilizer to correct manganese deficiencies in soil. Manganese is vital for photosynthesis, nitrogen metabolism, and enzyme activation in plants. Deficiencies can lead to poor growth, chlorosis (yellowing of leaves), and reduced crop yields. MnSO₄·H₂O is often applied in foliar sprays or soil amendments for crops like cereals, fruits, vegetables, and legumes.

·       Used as a manganese fertilizer to correct manganese deficiency in soil and improve crop yields.

·       Supports photosynthesis, chlorophyll production, and enzyme activation in plants.

·       Commonly applied as:

✅ Foliar sprays (diluted MnSO₄ solution sprayed on leaves)

✅ Soil amendments (directly mixed with soil or in compound fertilizers)

·       Beneficial for crops such as wheat, citrus fruits, soybeans, and vegetables.

🐄 Animal Nutrition

In animal feed, manganese sulfate is an essential supplement that supports bone formation, metabolism, and reproductive health. It is commonly added to livestock and poultry feed to ensure proper enzymatic functions and prevent growth disorders.

·       Used as a trace mineral supplement in animal feed to prevent manganese deficiency.

·       Supports:✅ Bone formation in livestock and poultry✅ Enzyme function for metabolism and digestion✅ Reproductive health in cattle, pigs, and poultry

·       Commonly included in premixes and mineral supplements for farm animals.

🔋 Battery & Electronics Industry

Manganese sulfate is a key precursor in lithium-ion and other battery technologies, particularly in cathode materials for energy storage systems. It plays a crucial role in the development of high-performance batteries used in electric vehicles (EVs) and renewable energy storage.

·       Used in cathode materials for lithium-ion batteries, especially in Lithium Manganese Oxide (LMO) and Nickel-Manganese-Cobalt (NMC) batteries.

·       Improves battery performance, stability, and energy density.

·       Critical for electric vehicles (EVs) and renewable energy storage systems.

🏭 Industrial & Chemical Uses

• Ceramics & Glass – Used as a colorant and glaze additive in ceramic manufacturing.

• Textile & Leather Processing – Acts as a mordant in dyeing processes.

• Water Treatment – Used in oxidation and purification processes.

• Chemical Manufacturing – Serves as a raw material in the production of other manganese-based compounds.

Production

Manganese(II) sulfate monohydrate (MnSO₄·H₂O) is primarily produced through chemical reactions involving manganese-containing raw materials and sulfuric acid. The most common industrial production methods include direct acid leaching of manganese ores, processing of manganese dioxide, and recovery from industrial by-products.

Precautions

Manganese(II) sulfate monohydrate is generally safe when handled properly, but excessive exposure can pose health, environmental, and safety risks. Below are key precautions for safe use in agriculture, animal feed, industrial, and laboratory settings.

✅ Handling & Storage:

• Store in a cool, dry, well-ventilated area, away from moisture.

• Keep in a sealed container to prevent clumping and contamination.

✅ Health & Safety:

• Avoid inhalation of dust—wear a mask if handling large quantities.

• Use gloves and safety goggles to prevent skin and eye irritation.

• Wash hands thoroughly after handling.

✅ Environmental Precautions:

• Prevent spillage into waterways—excess manganese can be toxic to aquatic life.

• Follow local regulations for safe disposal.

Global Markets

Manganese(II) sulfate monohydrate as fertilizer is commonly used in below regions:

• Asia-Pacific (China, India, Indonesia): Largest consumers due to high agricultural output.

• North & South America: Strong demand in the U.S., Brazil, and Argentina.

• Europe: Focus on sustainable farming practices increases demand.

Summary

Manganese(II) sulfate monohydrate is an indispensable compound with applications spanning agriculture, nutrition, energy storage, and industry. Its role in plant and animal health, as well as its growing importance in the battery sector, makes it a highly sought-after chemical. With the increasing demand for sustainable agriculture and advanced battery technologies, MnSO₄·H₂O will continue to play a pivotal role in global industries.