Formed by adding potassium hydrate to manganous sulphate, and filtering and drying the precipitate in vacuo.
Frequently also, magnesia and manganous oxide are present in small amounts, the former reaching 16%.
By precipitating a solution of manganous sulphate with a solution of sodium phosphate.
We also made a number of determinations, using a solution of manganous sulphate in the place of the oxalic acid.
Write the equations for the preparation of manganous chloride, carbonate, and hydroxide.
manganous hydroxide, Mn(OH)2, is obtained as a white precipitate on adding a solution of a caustic alkali to a manganous salt.
Finally, the excess of manganous sulphate is determined, in the manner described by Volhard, by means of solution No. 3.
The hydrated form, found native as the mineral manganite, is produced by the spontaneous oxidation of manganous hydroxide.
Mn3O4 per hectare (as manganous chloride) was applied to rice.
In barytobiotite and manganophyllite the magnesia is partly replaced by baryta and manganous oxide respectively.