Metal oxides

  • Manganese Chloride - Manganese(II) chloride tetrahydrate - chemical compound

Manganese Chloride - Manganese(II) chloride tetrahydrate - chemical compound

MnCl2 

Manganese(II) chloride is the dichloride salt of manganese, MnCl2. This inorganic chemical exists in the anhydrous form, as well as the dihydrate (MnCl2·2H2O) and tetrahydrate (MnCl2·4H2O), with the tetrahydrate being the most common form. Like many Mn(II) species, these salts are pink, with the paleness of the color being characteristic of transition metal complexes with high spin d5 configurations. It is a paramagnetic salt.

Scacchite is the natural, anhydrous form of manganese(II) chloride. The only other currently known mineral systematized as manganese chloride is kempite - a representative of the atacamite group, a group of hydroxide-chlorides.

NMR

Aqueous solutions of manganese(II) chloride are used in 31P-NMR to determine the size and lamellarity of phospholipid vesicles. When manganese chloride is added to a vesicular solution, Mn2+ paramagnetic ions are released, perturbing the relaxation time of the phospholipids' phosphate groups and broadening the resulting 31P resonance signal. Only phospholipids located in the outermost monolayer exposed to Mn2+ experience this broadening. The effect is negligible for multilamellar vesicles, but for large unilamellar vesicles, a ~50% reduction in signal intensity is observed.

Applications

Manganese chloride is mainly used in the production of dry cell batteries. It is the precursor to the antiknock compound methylcyclopentadienyl manganese tricarbonyl.

More about Magnesium oxide in Wikipedia 


Formula: MnCl2·4H2O

Molar mass: 197.91 g/mol
Form: octahedral pink crystals
CAS Number: 13446-34-9
Density: 2.01 g/cm³
Synonyms: Manganese (II) chloride, Manganese(2+);dichloride, Sacchite, manganese-chloride, Cl2Mn, ACMC-20akkt, Manganous chloride

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Manganese Chloride - Manganese(II) chloride tetrahydrate - chemical compound

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