Chemical Structure / July 21, 2018 / Nala Fletcher
Sodium permanganate cannot be prepared analogously to the route to KMnO4 because the required intermediate manganate salt, Na2MnO4, does not form. Thus less direct routes are used including conversion from KMnO4. Sodium permanganate behaves similarly to potassium permanganate. It dissolves readily in water to give deep purple solutions, evaporation of which gives prismatic purple-black glistening crystals of the monohydrate NaMnO4·H2O. The potassium salt does not form a hydrate. Because of its hygroscopic nature, it is less useful in analytical chemistry than its potassium counterpart.
Barium chloride has several important functions, but one very familiar to chemists is the role of "sulfate detective." Sulfate, SO4-2 is a negatively charged chemical unit consisting of a sulfur atom bonded to four oxygen atoms. These negatively charged units are known as negatively charged ions, or anions.
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