Differenciate between Flux and Slag.
In metallurgy, substance used to remove or prevent the formation of undesirable oxide and other substances during welding. Fluxes are similarly used during the refining of metals. They range from the acid silica to the neutral borax and the basic lime, and they also include rosins and various corrosives. The choice of flux used depends on the materials involved in the given operation.
impure residue, consisting largely of calcium, iron, aluminum, and magnesium silicate, derived during the process of pig-iron and steel production and during the smelting of metals, such as copper, lead, and nickelthanxxxAND THUMB UP PLZZZZZ