Manganese(II) sulfate monohydrate
Manganese(II) sulfate monohydrate (CAS 10034-96-5), with the linear formula MnSO₄·H₂O and a molecular weight of 169.02 g/mol, is a pinkish crystalline solid. This inorganic salt is primarily used as a laboratory reagent and in industrial applications, particularly in chemical synthesis and catalysis. It serves as a crucial source of manganese ions for various chemical processes and is supplied by TSS with an assay of ≥98%.

Chemical Synthesis Reagent
Manganese(II) sulfate monohydrate acts as a valuable manganese source in various organic and inorganic synthesis pathways. It can be employed to introduce manganese into complex molecules or as a catalyst precursor.
Catalysis
This compound serves as a catalyst or catalyst precursor in several industrial processes. Its ability to exist in multiple oxidation states makes it effective in facilitating redox reactions.
Inorganic Salt Applications
As a readily available inorganic salt, it finds use in the preparation of other manganese compounds and in various inorganic chemical formulations. Its properties are essential for specific material science applications.
| Molecular weight | 169.02 |
|---|---|
| Linear formula | MnSO4 · H2O |
| Assay | ≥98% |
| Grade | CP |
| Loss on drying | 10.0-12.0% loss on ignition |
| Storage temperature | 2-8°C |
| Impurities tested | MnO4- reducers, passes test≤0.01% insolubles |
| Suitability | suitable for manufacturing use |


Hazard statements
- H373May cause damage to organs through prolonged exposure
- H411Toxic to aquatic life with long-lasting effects
Precautionary statements
- P273Avoid release to the environment
| Protective equipment | dust mask type N95 (US), Eyeshields, Gloves |
|---|---|
| Transport (UN / ADR) | UN 3077 9 / PGIII |
| Water hazard class (WGK, DE) | 1 |
| Hazard codes (EU) | Xn,N |
| Risk statements (R) | 48/20/22-51/53 |
| Safety statements (S) | 22-61 |
| Cation traces | Ca: ≤0.005%Fe: ≤0.002%K: ≤0.01%Mg: ≤0.005%Na: ≤0.05%Ni: ≤0.02%Zn: ≤0.005%heavy metals (as Pb): ≤0.002% |
| Anion traces | chloride (Cl-): ≤0.005% |
Hazard information is provided for guidance. Always consult the product Safety Data Sheet (SDS), available on request, before handling.
| Availability | available only in Japan |
|---|
Documentation
Every batch ships with a Certificate of Analysis covering assay, identity and purity; the grade is confirmed against your enquiry. Safety Data Sheets and technical data sheets are available on request.
Supply & logistics
Samples for technical evaluation; bulk MOQ by grade and packaging. In-stock material ships in 7–10 working days, worldwide, with full export documentation.
What is Manganese(II) sulfate monohydrate used for?
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Manganese(II) sulfate monohydrate (CAS 10034-96-5) is used in chemical synthesis, as a catalyst or catalyst precursor, and in various inorganic salt applications. It serves as a key source of manganese ions for chemical processes.
What are the CAS number and formula for Manganese(II) sulfate monohydrate?
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The CAS number for Manganese(II) sulfate monohydrate is 10034-96-5, and its linear formula is MnSO₄·H₂O.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies Manganese(II) sulfate monohydrate with a CP grade and an assay of ≥98%. We do not represent this product as USP, BP, or EP grade.
How should Manganese(II) sulfate monohydrate be handled safely?
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Handle with appropriate personal protective equipment, including a dust mask (type N95 US), eyeshields, and gloves. This compound can cause damage to organs through prolonged or repeated exposure (H373) and is toxic to aquatic life with long-lasting effects (H411). Ensure good ventilation and avoid release into the environment (P273).
Is Manganese(II) sulfate monohydrate available for export?
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Manganese(II) sulfate monohydrate is available for export, although specific availability may be restricted to certain regions, such as Japan for this particular product listing.
How can I request a sample or quote?
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To request a sample or a quote for Manganese(II) sulfate monohydrate, please contact our sales department through the TSS website or your designated sales representative.
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