Manganese Acetate: A Comprehensive Introduction
1. Overview of Manganese Acetate
Manganese acetate (chemical formula: Mn(CH₃COO)₂) is an inorganic salt composed of manganese and acetate ions. It is commonly available in two forms:
Manganese(II) Acetate (Mn(CH₃COO)₂·4H₂O) – The most common form, a pinkish crystalline solid.
Manganese(III) Acetate (Mn₃(OAc)₇) – Used as an oxidizing agent in organic synthesis.
It is soluble in water and organic solvents like methanol and ethanol, making it highly versatile for industrial and chemical applications.
2. Production Methods
Manganese acetate is typically produced through the reaction of manganese carbonate or manganese dioxide with acetic acid.
Common Production Processes:
From Manganese Carbonate:
M n C O 3 + 2 C H 3 C O O H → M n ( C H 3 C O O ) 2 + C O 2 + H 2 O MnCO3+2CH3COOH → Mn(CH3COO)2+CO2+H2O This method is commonly used as it ensures high purity and controlled reaction conditions.
Electrochemical Synthesis:
Involves the electrolysis of manganese-containing solutions with acetic acid to form high-purity manganese acetate.
After synthesis, the compound is crystallized, filtered, and dried to obtain the desired solid form.
3. Physical and Chemical Properties
Property | Manganese(II) Acetate (Mn(CH₃COO)₂·4H₂O) |
---|---|
Appearance | Light pink or pale red crystalline powder |
Molecular Weight | 245.08 g/mol (tetrahydrate form) |
Solubility | Soluble in water, methanol, ethanol |
Melting Point | 80-90°C (decomposes upon heating) |
Density | ~1.74 g/cm³ |
Stability | Stable under normal conditions, but decomposes at high temperatures |
pH | Slightly acidic in solution |
Manganese(III) acetate differs in properties and is primarily used in organic oxidation reactions.
4. Applications of Manganese Acetate
Manganese acetate has diverse applications across multiple industries:
1) Catalyst in Chemical Reactions
Used in oxidation reactions, particularly in the conversion of alcohols to ketones or aldehydes.
Functions as a polymerization catalyst in the production of polyester resins and other synthetic materials.
2) Textile and Dye Industry
Serves as a mordant to improve dye fixation on fabrics.
Used in the manufacturing of specific color pigments in textiles and paints.
3) Paints, Coatings, and Inks
Acts as a drying agent in the production of coatings, inks, and varnishes.
Helps in improving the curing process in resin-based coatings.
4) Glass and Ceramic Industry
Enhances the properties of glass and ceramics by modifying colors and textures.
5) Electronics and Battery Industry
Involved in the synthesis of lithium-ion battery components.
Used in certain semiconductor and electronic material production.
6) Pharmaceutical and Chemical Synthesis
Used in laboratory research for developing new chemical compounds.
Involved in organic synthesis, particularly oxidation reactions.
7) Animal Feed and Nutrition
Occasionally used as a trace mineral supplement in animal feed for manganese deficiency.
5. Leading Global Manufacturers and Brands
Several companies produce high-quality manganese acetate for industrial use. Some well-known brands and manufacturers include:
Company | Country | Specialty |
---|---|---|
Merck KGaA (Sigma-Aldrich) | Germany | High-purity chemicals for research and industry |
Thermo Fisher Scientific | USA | Laboratory-grade manganese acetate |
American Elements | USA | Industrial and research-grade chemicals |
GFS Chemicals | USA | Specialty and high-purity chemicals |
Loba Chemie | India | Industrial chemicals and laboratory reagents |
Alfa Aesar (Part of Thermo Fisher) | USA | Research chemicals and catalysts |
Tokyo Chemical Industry (TCI) | Japan | High-purity laboratory reagents |
Spectrum Chemical | USA | Laboratory-grade manganese acetate |
Jiangsu Khonor Chemicals | China | High purity food additives and specialty chemicals |
Conclusion
Manganese acetate is a versatile compound with broad applications in catalysis, polymer production, dyeing, coatings, glass, and electronics. Its production involves simple acid-base reactions, and it is widely available from major global chemical suppliers. Whether in research, manufacturing, or industrial processing, its role as a catalyst and additive makes it an essential chemical in many fields.
What is Manganese Acetate?
Manganese Acetate (Mn(C₂H₃O₂)₂) is an inorganic manganese salt of acetic acid, appearing as pinkish or light reddish crystalline powder or granules. It is highly soluble in water and alcohol, making it a valuable catalyst, dye mordant, and stabilizer in chemical manufacturing, textile processing, and organic synthesis.
Key Features & Benefits:
✅ Powerful Oxidation Catalyst – Enhances reaction efficiency in chemical synthesis
✅ High Solubility & Stability – Dissolves easily for various industrial applications
✅ Effective Textile Mordant – Improves colorfastness in fabric dyeing
✅ Corrosion Inhibitor & Stabilizer – Used in metal treatments and coatings
✅ Industrial-Grade Purity – Meets chemical and industrial standards
Applications of Manganese Acetate:
📌 Catalyst in Chemical Industry
Used as an oxidation catalyst in the production of terephthalic acid (TPA) and dimethyl terephthalate (DMT) for polyester manufacturing
Enhances oxidation reactions in petrochemical processing and organic synthesis
📌 Textile & Dyeing Industry
Serves as a mordant in textile dyeing, improving color durability and absorption
Commonly used in the production of acetate-based dyes
📌 Metal Treatment & Surface Coating
Acts as a corrosion inhibitor in metal finishing and plating processes
Used in catalytic coatings to improve surface protection
📌 Pharmaceutical & Laboratory Applications
Applied in research as a reagent and intermediate for chemical synthesis
Used in pharmaceutical formulations and laboratory testing
📌 Other Industrial Uses
Additive in polymer and plastic stabilizers
Component in ceramic and glass manufacturing
Product Specifications:
Chemical Formula: Mn(C₂H₃O₂)₂
Molecular Weight: 173.03 g/mol
CAS Number: 638-38-0
Appearance: Pinkish-red crystalline powder
Solubility: Soluble in water and alcohol
Packaging: Available in 25kg bags, 50kg drums, or bulk supply
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Specification:
Product Name | Manganese acetate tetrahydrate |
Appearance | Pink crystalline powder |
Molecular formula | (CH3COO)2Mn.4H2O |
Molecular weight | 245.087 |
CAS No. | 6156-78-1 |
Melting point | 80℃ |
Boiling point | Decompose |
Density | 1.59g/mL |
Application | Food/pharma additive |
Content (as Mn(CO3COO)2.4H2O) ≥% | 98.0 |
Water insoluble subs. ≤% | 0.01 |
Sulfate ≤% | 0.02 |
Cl ≤% | 0.01 |
Fe ≤% | 0.002 |
Cu ≤% | 0.005 |
Ni ≤% | 0.08 |
Alkalis and alkaline earth ≤% | 0.3 |