Mangan(II) sulfate monohydrate: properties and safe use
Manganese(II) sulfate monohydrate, also known as MnSO₄·H₂O, is an important chemical product with diverse applications in industry and household. In this article, we will take a closer look at the properties, uses, and safety aspects of this substance.
Properties of manganese(II) sulfate monohydrate
Manganese(II) sulfate monohydrate is a crystalline, pale pink to white solid that is easily soluble in water. The chemical formula is MnSO₄·H₂O, which means each molecule contains one manganese atom, one sulfur atom, four oxygen atoms, and one water molecule.
The main physical properties of manganese sulfate monohydrate include:
- Molecular weight: 169.01 g/mol
- Melting point: 700 °C (decomposition)
- Boiling point: Not applicable (decomposition)
- Solubility in water: 71.5 g/100 ml (20 °C)
- Density: 2.3 g/cm³
Manganese sulfate is a transition metal salt that forms Mn²⁺ ions in aqueous solution. These ions give the solution a characteristic pale pink to violet color.
Applications of manganese(II) sulfate monohydrate
Manganese(II) sulfate monohydrate is used in many industries. Some of the most important areas of application are:
Agriculture and animal feed
Manganese sulfate serves as a source of the essential trace element manganese in fertilizers and animal feed. It helps prevent deficiencies in plants and animals.
Chemical Industry
In the chemical industry, manganese sulfate is used as a starting material for the production of other manganese compounds, such as potassium permanganate. It is also used in catalysts and oxidizing agents.
Glass and ceramics industry
Manganese sulfate serves as a decolorizing agent and colorant in the glass and ceramics industry. It is used to neutralize unwanted green or blue discolorations.
Water treatment
In water treatment, manganese sulfate is used as an oxidizing agent and flocculant aid to remove heavy metals and other impurities from water.
Medicine and pharmacy
In medicine and pharmacy, manganese sulfate is used as a dietary supplement and in the manufacture of pharmaceuticals.
Other applications
Other areas of application include the leather industry, textile dyeing, as well as the production of dry batteries and ceramic pigments.
Safety aspects when using manganese(II) sulfate monohydrate
As with all chemical products, some safety aspects must be observed when handling and storing manganese(II) sulfate monohydrate:
Occupational Safety
When handling manganese sulfate, appropriate protective equipment such as gloves, safety goggles, and respiratory masks should be worn to avoid skin contact and inhalation of dust. Good ventilation of the work area is also important.
Storage
Manganese sulfate monohydrate should be stored dry, cool, and protected from direct sunlight. Incompatible substances such as strong oxidizing agents must be kept away from the product.
Disposal
Empty packaging and residues of manganese sulfate must be disposed of as hazardous waste. Disposal via the sewage system or into the environment is not permitted.
First Aid
In case of contact with eyes or skin, rinse thoroughly with water immediately. If swallowed, seek medical help immediately.
By observing these safety instructions, safe handling of manganese(II) sulfate monohydrate can be ensured and risks to humans and the environment can be avoided.
Conclusion
Manganese(II) sulfate monohydrate is a versatile chemical product with numerous applications in industry and household. Due to its properties and mode of action, it is an important component in many products and processes. By adhering to safety regulations, manganese sulfate can be handled safely and responsibly.









