Manganates and permanganates

It should be noted that the valence of chromium is 6, both in chromate and dichromate. The difference between manganate and permanganate lies in the changing valence of the manganese. The difference between chromate and dichromate lies merely in the state of hydration and can be referred back to the acids. 

Nitrates, chlorates, acetates, manganates, and permanganates are all soluble exceptions are a few basic nitrates (e.g. Bi and Sb) and basic acetates (e.g. Fe) silver and mercury(I) acetates are sparingly soluble. 

Sodium manganate and permanganate.—The modes of preparation and the properties of sodium manganate and permanganate are given in Vol. VIII. 

The Manganates and Permanganates. When manganese dioxide is heated with potassium hydroxide in the presence of air it is oxidized to potassium manganate, K MnO ... 

Manganates and permanganates are rarely used to convert alcohols into aldehydes because permanganate oxidizes aldehydes to acids. However, when adsorbed on molecular sieves, potassium permanganate in benzene at 70 C oxidizes benzyl alcohol and dnnamyl alcohol to the aldehydes in 80 and 94% yields, respectively. Saturated aliphatic alcohols give very... 

Alkali manganates and permanganates are soluble in H2O, but the former (like the latter) decompose, faster on warming, dilution with H2O or acidification, slower with free alkali ... 

---