Manganese(II) sulfate Manganese(II) sulfate Manganese(II) sulfate usually refers to the inorganic compound with the formula MnSO·HO. This pale pink deliquescent solid is a commercially significant manganese(II) salt. Approximately 260 thousand tonnes of manganese(II) sulfate were produced worldwide in 2005. It is the precursor to manganese metal and many other chemical compounds. Mn-deficient soil is remediated with this salt. Like many metal sulfates, manganese sulfate forms a variety of hydrates: monohydrate, tetrahydrate, pentahydrate, and heptahydrate. The monohydrate is most common. All of these salts dissolve to give faintly pink solutions of the aquo complex [Mn(HO)]. The pale pink colour of Mn(II) salts is
Manganese(III) acetate Manganese(III) acetate Manganese(III) acetate describes a family of coordination complexes with the approximate formula Mn(OCCH). All are brown solids, which are soluble in acetic acid and water. These compounds are used in organic synthesis as oxidizing agents. Compounds with the formula Mn(OCCH) have not been verified. Instead manganese(III) acetate adopts the structure reminiscent of those of basic chromium acetate and basic iron acetate. For this reason, manganese(III) acetate is sometimes referred to as basic manganese acetate. The formula is [MnO(OCCH)L]X where L is a ligand and X is an anion. The coordination polymer [MnO(OCCH)]OCCHHOCCH has been crystallized. It is usually