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(II) chloride batteries. It is the precursor to the antiknock compound methylcyclopentadienyl manganese tricarbonyl. Manganism, or manganese poisoning, can be caused by long-term exposure to manganese dust or fumes. Manganese(II) chloride Manganese(II) chloride describes a series of compounds with the formula MnCl(HO), where the value of x can be 0, 2, or 4. The tetrahydrate is the most common form of "manganese(II) chloride" and is the tetrahydrate with the formula MnCl·4HO. The anhydrous form and a dihydrate MnCl·2HO are also known. Like many Mn(II) species, these salts are pink, with the paleness of the color being characteristic of transition metal complexes with