Slag Infogalactic The Planetary Knowledge Core
2019729ensp enspslag is the glasslike byproduct left over after a desired metal has been separated ie smelted from its raw oreslag is usually a mixture of metal oxides and silicon dioxidehowever slags can contain metal sulfides and elemental metals while slags are generally used to remove waste in metal smelting they can also serve other purposes such as assisting in the temperature control of