Meanings of black oxide in English

The red oxide corresponds to the black oxide of iron.

It often contains MAGNETITE (the magnetic black oxide of iron) and OLIVINE (a greenish magnesian silicate).

In some places it is obtained from what is called the specular iron ore, and also from black oxide.

These cliffs proved, as Bennie had already suspected, to be a gigantic outcrop of pitchblende or black oxide of uranium.

Use equal parts of boiled oil, white lead, pipe clay and black oxide of manganese, and form it into a paste.

The ore (probably the black oxide) was like sand, and was put in at the top of the furnace, mixed with charcoal.

Early in his experimental career Scheele undertook the solution of the composition of black oxide of manganese, a substance that had long puzzled the chemists.

"Possibly it's black oxide of manganese you want?" he said, quietly.

The most abundant oxidised ores are the carbonates, malachite and chessylite; the silicates, as also the red and black oxides, occur less abundantly.

"Eradicating ink is simply a bleaching process," she remarked, "which leaves the iron of the ink as a white oxide instead of a black oxide.