
Manganese Sulfate Monohydrate is an inorganic manganese salt with the chemical formula MnSO₄·H₂O. It is the monohydrate form of manganese(II) sulfate and is a pale pink crystalline solid or light pink powder and is odorless. This hydrated metal sulfate consists of manganese(II) sulfate combined with one molecule of water of crystallization, giving it stable physical and chemical properties. It is commercially known as one of the most common manganese(II) salts and serves as an important precursor for the preparation of manganese metal and various manganese based compounds.

CAS No.:Â 10034-96-5
Synonyms: Manganous sulfate monohydrate, manganese(II) sulfate monohydrate, sulfuric acid manganese(2+) salt monohydrate.
| Physical Properties | |
| Chemical formula | H2MnO5S |
| IUPAC Name | manganese(2+);sulfate;hydrate |
| Molecular weight | 169.02 g/mol |
| Solubility | Soluble in water |
| Density | 2.95 g/cm3 |
| Storage | Store at room temperature |
| Chemical Properties | |
| Color | Pale pink to light red |
| Physical State | Solid |
| Melting Point | 700 °C |
| Ph value | 3-3.5 |
| Odor | Odorless |
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| Pictograms : | ![]() ![]() |
| Hazard Statements : | H373: May cause damage to organs through prolonged or repeated exposure. H411: Toxic to aquatic life with long-lasting effects. |
| Precautionary Statements: | P273: Avoid release to the environment. P314: Get medical advice/attention if you feel unwell. P260: Do not breathe dust. |
Manganese Sulfate Monohydrate is an inorganic manganese salt with the chemical formula MnSO₄·H₂O. It is the monohydrate form of manganese(II) sulfate and is a pale pink crystalline solid or light pink powder and is odorless. This hydrated metal sulfate consists of manganese(II) sulfate combined with one molecule of water of crystallization, giving it stable physical and chemical properties. It is commercially known as one of the most common manganese(II) salts and serves as an important precursor for the preparation of manganese metal and various manganese based compounds.

CAS No.:Â 10034-96-5
Synonyms: Manganous sulfate monohydrate, manganese(II) sulfate monohydrate, sulfuric acid manganese(2+) salt monohydrate.
| Physical Properties | |
| Chemical formula | H2MnO5S |
| IUPAC Name | manganese(2+);sulfate;hydrate |
| Molecular weight | 169.02 g/mol |
| Solubility | Soluble in water |
| Density | 2.95 g/cm3 |
| Storage | Store at room temperature |
| Chemical Properties | |
| Color | Pale pink to light red |
| Physical State | Solid |
| Melting Point | 700 °C |
| Ph value | 3-3.5 |
| Odor | Odorless |
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| Pictograms : | ![]() ![]() |
| Hazard Statements : | H373: May cause damage to organs through prolonged or repeated exposure. H411: Toxic to aquatic life with long-lasting effects. |
| Precautionary Statements: | P273: Avoid release to the environment. P314: Get medical advice/attention if you feel unwell. P260: Do not breathe dust. |
Manganese Sulfate Monohydrate is mainly used in fertilizers to correct manganese deficiency in crops. It is also used to manufacture manganese metal, produce other manganese compounds and as a laboratory reagent in chemical research.
Manganese Sulfate Monohydrate and magnesium sulfate are different chemical compounds with different uses. Manganese Sulfate Monohydrate contains manganese which can trace mineral for bone formation. while magnesium sulfate contains magnesium, a major mineral needed for muscle and nerve function.
Manganese Sulfate Monohydrate is also known as manganese(II) sulfate monohydrate. The chemical formula of the compound is MnSO₄·Hâ‚‚O.Â
Manganese sulfate monohydrate is produced by reacting manganese-rich ores or manganese-containing byproducts with sulfuric acid in the presence of a reducing agent. The resulting solution is purified to remove impurities like iron and other heavy metals, then concentrated and crystallized to obtain the stable pink monohydrate crystals.