Manganese Sulfate, Manganese Sulphate Monohydrate, Anhydrous Manganese Sulfate, Manganese Sulfate Tetrahydrate, 7785-87-7, 10034-96-5, 10101-68-5

Manganese Sulfate, Manganese Sulphate Monohydrate, Anhydrous Manganese Sulfate, Manganese Sulfate Tetrahydrate, 7785-87-7, 10034-96-5, 10101-68-5

🔹 CAS Numbers for Manganese Sulfate

Here are the main variants:

🔹 Notes

• EC Number: 232-089-9 (covers manganese sulfate in general).

• Hydrated forms are the most common in commerce, especially monohydrate (MnSO₄·H₂O), widely used in fertilizers and feed additives.

• The anhydrous form is less common but used in laboratory and industrial processes.

• CAS numbers differ because each hydration state is considered a distinct chemical substance.

✅ Summary: Manganese sulfate has multiple CAS numbers depending on hydration: 7785-87-7 (anhydrous), 10034-96-5 (monohydrate), and 10101-68-5 (tetrahydrate). The monohydrate is the most widely used industrial form

Manganese Sulfate (MnSO₄) 

Here’s a clear English version of the information you shared, with technical corrections included:

🔹 Basic Information

• Chemical Formula: MnSO₄

• CAS Number: 7785-87-7

• Oxidation State of Mn: +2

• Molar Mass:

  • Anhydrous: 151.00 g/mol

  • Monohydrate: 169.02 g/mol

• Appearance: White to pale pink crystalline solid (color depends on hydration and purity)

🔹 Physical & Chemical Properties

• Density: ~3.25 g/cm³ (not g/mol)

• Solubility:

  • Highly soluble in water

  • Slightly soluble in methanol

• Thermal Behavior:

  • Hydrate loses water at ~100–125 °C

  • Anhydrous salt decomposes at ~700–850 °C, forming manganese oxides and sulfur oxides

• Stability: Hygroscopic; commonly found as monohydrate (MnSO₄·H₂O)

🔹 Synonyms

• Manganese(II) sulfate

• Manganese sulfate monohydrate

• Anhydrous manganese sulfate

• MnSO₄

• Note: “Sulfuric acid magnesium salt” is incorrect; the correct term is “sulfuric acid manganese salt.”

🔹 Applications

• Agriculture:

  • Used in fertilizers to correct manganese deficiency, especially in alkaline soils (high pH).

  • Foliar application is more effective than soil application because high pH reduces manganese uptake.

  • Often combined with acidic fertilizers to improve absorption.

• Animal Nutrition:

  • Manganese is essential for enzyme activity and bone development.

  • Supplements containing MnSO₄ are added to feed to prevent deficiency.

  • Dosage must be determined by veterinary or nutritional experts.

• Metallurgy:

  • Manganese is critical in steelmaking and alloy production.

  • However, ferromanganese alloys are typically used, not MnSO₄ directly.

  • Manganese improves hardness, toughness, and corrosion resistance in aluminum and magnesium alloys.

• Battery Industry:

  • Precursor for lithium-ion battery cathode materials (NMC/NMN).

  • Improves performance in lead-acid batteries by enhancing electrolyte properties.

• Water Treatment:

  • Manganese compounds are sometimes used in water treatment, but MnSO₄ is not a primary chemical for municipal water purification.

🔹 Safety & Handling

• Store in a dry environment to prevent clumping.

• Avoid inhalation of dust; use protective equipment.

• Follow local regulations and Safety Data Sheet (SDS) guidelines.

✅ Summary: Manganese sulfate is a versatile compound widely used in fertilizers, animal feed, metallurgy, and battery production. Its main role is to supply manganese in a soluble form, correcting deficiencies in plants and animals, and serving as a precursor in industrial processes.