what is flux? in chem
Flux is the substance added during the extraction of metals.On heating it reacts with the earthly impurities(gangue) to form fusible (molten) mass known as slag. They may be acidic or basic in nature.
- Acidic flux are is used to remove the basic impurities
For example silica.
- Basic fluxes are used to remove acidic impurities
For example -Lime.