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Manganese(II) chloride tetrahydrate

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Identification
Molecular formula
MnCl2·2H2O
CAS number
13446-34-9
IUPAC name
manganous;dichloride;dihydrate
State
State

At room temperature, Manganese(II) chloride dihydrate usually exists as a crystalline solid in its tetrahydrate form. When dehydrated, it maintains its solid state.

Melting point (Celsius)
58.90
Melting point (Kelvin)
332.05
Boiling point (Celsius)
1 190.00
Boiling point (Kelvin)
1 463.15
General information
Molecular weight
197.92g/mol
Molar mass
197.9180g/mol
Density
2.0103g/cm3
Appearence

The compound typically appears as a pink solid in its dihydrate form. It is crystalline and can have a slight metallic sheen. The color intensity can vary depending on the hydration state, often exhibiting a pale pink hue in its tetrahydrate form.

Comment on solubility

Solubility of Manganous Dichloride Dihydrate

Manganous dichloride dihydrate, with the chemical formula MnCl2 · 2H2O, exhibits interesting solubility characteristics that are essential for its applications in various chemical processes. Here are some key points regarding its solubility:

  • Solubility in Water: Manganous dichloride dihydrate is highly soluble in water, making it readily available for reactions in aqueous solutions.
  • Effect of Temperature: The solubility of this compound tends to increase with temperature, which is typical for many salts. Thus, heating the solution can enhance the dissolution process.
  • Solvent Influence: While it is predominantly soluble in water, its solubility may vary in other solvents, often being lower in organic solvents compared to polar ones.

To quote a well-known maxim in chemistry: "Like dissolves like." In other words, the ionic nature of manganous dichloride dihydrate favors its solubility in polar solvents such as water. This property is critical for its role in various applications, such as in analytical chemistry and biological systems.

In summary, due to its high solubility in water and the influence of temperature, MnCl2 · 2H2O stands out as a useful compound in various chemical processes.

Interesting facts

Exploring Manganous Dichloride Dihydrate

Manganous dichloride dihydrate is an intriguing compound often utilized in various applications due to its unique properties. Here are some fascinating aspects of this compound:

  • Manganese Source: This compound serves as an important source of manganese, an essential element playing a key role in biological systems and various industrial processes.
  • Color and Function: Manganous dichloride is characterized by its typically light pink color when hydrated, which can be visually striking. This color change is a result of its oxidation state, where manganese exists in a +2 oxidation state.
  • Use in Agriculture: It is widely used in agriculture as a micronutrient for plants, promoting healthy growth and improving crop yield. It's important for processes such as photosynthesis and nitrogen metabolism in plants.
  • Role in Chemistry: In the field of coordination chemistry, manganous dichloride dihydrate is a starting material for the synthesis of various manganese complexes, which can exhibit diverse chemical behaviors and properties.
  • Historical Significance: Manganese has been known since ancient times, and manganese compounds like manganous dichloride have been used historically for pigments in ceramics and glassmaking.

In summary, manganous dichloride dihydrate is more than just a chemical compound; it embodies a variety of roles ranging from agriculture to material science. As stated by one researcher, "Understanding the behavior of manganese compounds opens the door to innovations in both environmental and industrial applications." The potential of this compound continues to captivate scientists and students alike.

Synonyms
Manganous chloride dihydrate
Manganese dichloride dihydrate
manganese chloride dihydrate
MANGANESE CHLORIDE, DIHYDRATE
O2SV2Q506G
Manganese chloride (MnCl2), dihydrate
682-147-6
20603-88-7
RefChem:809844
manganese(2+);dichloride;dihydrate
MANGANESE(II)CHLORIDEDIHYDRATE
UNII-O2SV2Q506G
SCHEMBL2253226
DTXSID40942793
BEYCFZBNRLPHEP-UHFFFAOYSA-L
Manganese(2+) chloride--water (1/2/2)
MANGANESE CHLORIDE DIHYDRATE [WHO-DD]