Magnetic oxide sentence example
- Verneuil succeeded in imparting a sapphire-blue colour to artificial alumina by addition of i 5% of magnetic oxide of iron and o.
- This was burnt mouth-down in the oven., and the ashes on the ground reduced the red haematite to black magnetic oxide of iron; some traces of carbonyl in the ash helped to rearrange the magnetite as a brilliant mirror-like surface of intense black.
- Its dioxide (pyrolusite) has been known from very early times, and was at first mistaken for a magnetic oxide of iron.
- A small amount of work is treated by the Bower-Barff and allied processes, by which a coating of magnetic oxide is left on the metal.