Manganese (II) Sulfate or Manganese Sulfate (MnSO₄)
 
CAT No.: ASC-1062
CAS Number: 7785-87-7
Molecular Formula: MnSO₄
Molar Mass: 151.00 g/mol
 
Overview
Manganese(II) sulfate is an inorganic compound commonly encountered as a pale pink crystalline solid. It exists in various hydrated forms, including monohydrate, tetrahydrate, pentahydrate, and heptahydrate, all of which are soluble in water. This compound serves as a vital source of manganese ions in various chemical processes and applications.
 
Physical and Chemical Properties
Appearance: White crystals (anhydrous); pale pink solid (hydrates)
Density: 3.25 g/cm³ (anhydrous)
Melting Point: 710°C (anhydrous)
Boiling Point: 850°C (anhydrous)
Solubility: Highly soluble in water; very slightly soluble in methanol; insoluble in ethanol and ether
pH (5% solution): Approximately 3.7 
 
Applications
Agriculture: Used as a micronutrient fertilizer to correct manganese-deficient soils, enhancing crop yield and quality.
Animal Nutrition: Serves as a dietary supplement in animal feeds to prevent manganese deficiency.
Chemical Manufacturing: Acts as a precursor for producing other manganese compounds, such as manganese dioxide, which is utilized in dry-cell batteries.
Ceramics and Pigments: Employed in the production of ceramics and as a pigment due to its coloration properties.
Laboratory Reagent: Utilized in various analytical and preparative chemistry applications.
 
Safety and Handling
Hazards: May cause skin and eye irritation; inhalation of dust can lead to respiratory tract irritation. Prolonged exposure may affect the central nervous system.
Precautions: Use appropriate personal protective equipment (PPE) such as gloves, safety goggles, and dust masks. Ensure adequate ventilation in the working area.
Storage: Store in a cool, dry, and well-ventilated place away from incompatible substances.
Keep the container tightly closed when not in use.
For detailed safety information, please refer to the product's Safety Data Sheet (SDS).