binoxide

The binoxide, or peroxide, is the black manganese of commerce, and the pyrolusite of mineralogists, and is by far the most abundant of the manganese ores.

Scientific American Supplement, No. 401, September 8, 1883 Various

The binoxide of commerce, as taken from the mine, is well sampled, powdered, and dried at 100°C.

Scientific American Supplement, No. 324, March 18, 1882 Various

If a carbonate, chloride, or nitrate, be present in the native binoxide, it must be removed with some sulphuric acid.

Scientific American Supplement, No. 324, March 18, 1882 Various

From all compounds of manganese, excepting those containing cobalt and nickel, the manganese is precipitated as binoxide; those containing these two elements are treated with phosphoric acid, or as noted under

Scientific American Supplement, No. 324, March 18, 1882 Various

Myself and several others have found this always to be a true MnO_ {2}, and not a varying mixture of protosesquioxide and binoxide, and will thus yield accurate results.

Scientific American Supplement, No. 324, March 18, 1882 Various

From the acids in insoluble and a few other compounds, chromic, arsenic, and arsenious acids, by fusion with carbonate of soda in presence of carbonic acid gas; borate of manganese is readily decomposed when the boracic acid is to be determined by boiling with solution of potassa, dissolving the residue in hydrochloric acid and precipitating the manganese as binoxide.

Scientific American Supplement, No. 324, March 18, 1882 Various

The same pyrolusite (binoxide of manganese) cylinder used with the same thin rod of zinc will precipitate 75 per cent. more copper from solution in an hour when caustic potash is used than when sal ammoniac is employed.

Scientific American Supplement, No. 392, July 7, 1883 Various

The last bulb, which serves as a check to control the operation, remains clear, and proves that no binoxide of barium is formed.

Scientific American Supplement, No. 358, November 11, 1882 Various

It is again dissolved in HCl and titrated with uranium solution, or decomposed by tin, as noted below, and the manganese precipitated as binoxide with chlorine, and determined.

Scientific American Supplement, No. 324, March 18, 1882 Various

Manganate of potash is formed by fusing together hydrated potash and binoxide of manganese.

Scientific American Supplement, No. 401, September 8, 1883 Various