Manganese(II) chloride tetrahydrate
Manganese(II) chloride tetrahydrate (CAS: 13446-34-9), with the linear formula MnCl2·4H2O and a molecular weight of 197.91 g/mol, is an inorganic salt supplied by Tech Serve Solutions. This pink crystalline solid is soluble in water and finds use as a laboratory reagent and in various chemical syntheses. It is an essential component in the preparation of other manganese compounds and as a catalyst in certain organic reactions. TSS provides this chemical with ACS reagent specifications.

Chemical Synthesis Reagent
Used as a source of manganese ions in the synthesis of other manganese-containing compounds. It can also act as a catalyst in various organic transformations, facilitating reactions like oxidation and polymerization.
Laboratory Analysis
Employed as a standard in analytical chemistry for the calibration of instruments and in spectroscopic studies. Its defined properties make it suitable for quality control procedures.
Preparation of Manganese Compounds
Serves as a precursor for producing other manganese salts and complexes, essential in research and industrial applications requiring specific manganese derivatives.
Catalysis in Organic Chemistry
Functions as a catalyst in specific organic reactions, including certain types of polymerization and oxidation processes, contributing to efficient chemical transformations.
| Molecular weight | 197.91 |
|---|---|
| Linear formula | MnCl2 · 4H2O |
| Assay | ≥98%98.0-101.0% (ACS specification) |
| Grade | ACS reagent |
| Solubility | H2O: soluble0.5 M at 20 °C, clear, colorless |
| pH | 3.5-6.0 (25 °C, 5%) |
| Impurities tested | ≤0.005% insolubles |
| Melting point | 58 °C(lit.) |

Hazard statements
- H302Harmful if swallowed
| Protective equipment | dust mask type N95 (US), Eyeshields, Gloves |
|---|---|
| Water hazard class (WGK, DE) | 1 |
| Hazard codes (EU) | Xn |
| Risk statements (R) | 22-52 |
| Cation traces | Ca: ≤0.005%Fe: ≤5 ppmK: ≤0.01%Mg: ≤0.005%Na: ≤0.05%Zn: ≤0.005%heavy metals (as Pb): ≤5 ppm |
| Anion traces | sulfate (SO42-): ≤0.005% |
Hazard information is provided for guidance. Always consult the product Safety Data Sheet (SDS), available on request, before handling.
| Uv Absorption | λ: 260 nm Amax: 0.01λ: 280 nm Amax: 0.01 |
|---|
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) chloride tetrahydrate used for?
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Manganese(II) chloride tetrahydrate is used as a chemical synthesis reagent, in laboratory analysis, for the preparation of other manganese compounds, and as a catalyst in organic chemistry.
What are the CAS number and formula for Manganese(II) chloride tetrahydrate?
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The CAS number is 13446-34-9, and its linear formula is MnCl2·4H2O.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies Manganese(II) chloride tetrahydrate with an ACS reagent grade, offering an assay of ≥98% (98.0-101.0% according to ACS specification).
What are the primary hazards associated with this chemical?
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This compound is classified with GHS07 symbol and a 'Warning' signal word. It carries the hazard statement H302, indicating it is harmful if swallowed. Appropriate personal protective equipment, including a dust mask (type N95), eyeshields, and gloves, should be used when handling.
How is Manganese(II) chloride tetrahydrate packed and exported?
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Tech Serve Solutions, as a specialist global supplier and exporter since 1998, ensures appropriate packaging and export procedures for chemicals like Manganese(II) chloride tetrahydrate, adhering to international shipping regulations.
How can I request a quote or sample?
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To request a quote or a sample of Manganese(II) chloride tetrahydrate, please contact Tech Serve Solutions directly through our website or by phone, providing the product name and CAS number.
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