… Beryllium, chromium, hafnium, rhenium, thallium, cadmium, germanium, vanadium, gallium, indium and niobium …
Explanatory notes
… of a precious stone (e.g., emerald) ( Chapter 71 ). The main commercial methods of extracting this metal are : (1) … electrolysis of a mixture of beryllium oxyfluoride (manufactured from the ore) and barium or other fluorides. A … iron cathode. (2) Reduction of beryllium fluoride using magnesium. * * * Beryllium is a steel‑grey metal, very …