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Manganese(IV) oxide

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Identification
Molecular formula
MnO2
CAS number
1313-13-9
IUPAC name
oxomanganese
State
State

At room temperature, manganese(IV) oxide is in a solid state. This compound exists as a powdery solid, making it a convenient form for various industrial and chemical applications.

Melting point (Celsius)
535.00
Melting point (Kelvin)
808.15
Boiling point (Celsius)
0.00
Boiling point (Kelvin)
0.00
General information
Molecular weight
86.94g/mol
Molar mass
86.9370g/mol
Density
5.0260g/cm3
Appearence

Manganese(IV) oxide appears as a black or brown-black solid. It exists in several mineral forms, the most common of which include pyrolusite and romanechite. The material is often powdery, and it can present as amorphous or crystalline, with pyrolusite exhibiting a crystalline form.

Comment on solubility

Solubility of Oxomanganese

Oxomanganese, a compound containing manganese in a specific oxidation state, exhibits varied solubility characteristics that depend primarily on its ionic form and the presence of other substances in the solution.

Key Factors Influencing Solubility:

  • Ionic Form: Different oxomanganese ions, such as MnO4-, can show distinct solubility behaviors in water.
  • pH Levels: The solubility of oxomanganese can significantly change with pH, as it may hydrolyze to form insoluble hydroxides under certain conditions.
  • Temperature: As with many compounds, increasing the temperature can enhance the solubility of oxomanganese.
  • Presence of Complexing Agents: Complexing agents in the solution can either facilitate or hinder the solubility of oxomanganese by forming soluble complexes or precipitates.

In summary, the solubility of oxomanganese is a multifaceted phenomenon that requires consideration of its ionic state, the environmental conditions, and the potential for interaction with other chemical species. As a general observation, one might say:

"Solubility is a delicate dance influenced by partners of environmental conditions and chemical composition."

Overall, understanding the solubility of oxomanganese is crucial for its application in various scientific and industrial processes.

Interesting facts

Interesting Facts about Oxomanganese

Oxomanganese, a fascinating chemical compound, has garnered attention for its versatile applications and properties. Here are some intriguing aspects that highlight its significance:

  • Oxidation States: Oxomanganese is a bridge between different oxidation states of manganese, primarily highlighting its +3 and +4 oxidation states. This characteristic plays a crucial role in various redox reactions and contributes to its unique chemistry.
  • Catalysis: This compound is an essential player in catalytic reactions, particularly in organic synthesis. It aids in the oxidation processes, making it invaluable in the production of fine chemicals, pharmaceuticals, and agrochemicals.
  • Biological Importance: Oxomanganese has been studied for its role in biological systems, especially in enzymatic reactions. Its presence is vital in certain enzymes that facilitate critical metabolic pathways in both plants and animals.
  • Colorimetric Applications: The distinct color of oxomanganese compounds can be utilized in colorimetric assays, making it a useful tool in analytical chemistry. Color changes can indicate specific reactions or the presence of certain compounds.
  • Environmental Impact: Understanding the behavior of oxomanganese in various environmental contexts is essential, especially concerning its role in soil chemistry and its influence on nutrient availability in ecosystems.

In summary, oxomanganese is not just a mere chemical compound; it is a versatile entity that straddles a wide array of scientific fields, from catalysis to biological processes. As research continues, its applications and importance are likely to expand, revealing even more about this remarkable compound.

Synonyms
Manganese(II) oxide
oxomanganese
Manganosite
Manganese monooxide
Manganese Green
Cassel Green
MANGANOUS OXIDE
Rosensthiel Green
NU-Manese
Manganese protoxide
Natural manganosite
Manganese(II) oxide, mon-
HSDB 1259
C.I. 77726
EINECS 215-695-8
CI 77726
EC 215-695-8
NUManese
Manganese(II) oxide, mon
DTXCID601507825
1344-43-0
dtxsid5042110
manganese oxide (mno)
manganous oxide [hsdb]
MFCD00016226
UNII-64J2OA7MH3
oxo-manganese
Nano Manganese Oxide Powder
Manganese(II) oxide, 99%
AKOS015904024
FM179421
Lithium Niobate (LiNbO3) Sputtering Targets
NS00112689
Manganese(II) oxide, powder, -60 mesh, 99%
Q414669
Manganese(II) oxide, >=99.99% trace metals basis