Manganese Sulfate Monohydrate CAS NO 10034-96-5 Inquire about Manganese Sulfate Monohydrate

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Manganese(II) sulfate

Manganese(II) sulfate usually refers to the inorganic compound with the formula MnSO₄·H₂O. This pale pink deliquescent solid is a commercially significant manganese(II) salt. Approximately 260,000 tonnes of manganese(II) sulfate were produced worldwide in 2005. It is the precursor to manganese metal and many other chemical compounds. Manganese-deficient soil is remediated with this salt.

Structure

The structure of MnSO₄·H₂O has been determined by X-ray crystallography. Like many metal sulfates, manganese sulfate forms a variety of hydrates: monohydrate, tetrahydrate, pentahydrate, and heptahydrate. All of these salts dissolve in water to give faintly pink solutions of the aquo complex [Mn(H₂O)₆]²⁺.

Applications and production

Typically, manganese ores are purified by their conversion to manganese(II) sulfate. Treatment of aqueous solutions of the sulfate with sodium carbonate leads to precipitation of manganese carbonate, which can be calcined to give the oxides MnO_x. In the laboratory, manganese sulfate can be made by treating manganese dioxide with sulfur dioxide:

MnO₂ + SO₂ + H₂O → MnSO₄(H₂O)

It can also be made by mixing potassium permanganate with sodium bisulfate and hydrogen peroxide.

Manganese sulfate is a by-product of various industrially significant oxidations that use manganese dioxide, including the manufacture of hydroquinone and anisaldehyde.

Electrolysis of manganese sulfate yields manganese dioxide, which is called EMD for electrolytic manganese dioxide. Alternatively oxidation of manganese sulfate with potassium permanganate yields the so-called chemical manganese dioxide (CMD). These materials, especially EMD, are used in dry-cell batteries.

Natural occurrence

Manganese(II) sulfate minerals are very rare in nature and always occur as hydrates. The monohydrate is called szmikite; tetrahydrate = ilesite; hexahydrate (the most rare) = chvaleticeite; pentahydrate = jōkokuite; heptahydrate = mallardite

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External Link

Wikipedia contributors. (2020, December 1). Manganese(II) sulfate. In Wikipedia, The Free Encyclopedia. Retrieved 20:01, December 18, 2020, from https://en.wikipedia.org/w/index.php?title=Manganese(II)_sulfate&oldid=991726192