Page issues. Municipal solid waste (MSW), commonly known as trash or garbage in the United States and as refuse or rubbish in Britain, is a waste type consisting of everyday items that are discarded by the public. Garbage can also refer specifically to food waste, as in a garbage disposal; the two are sometimes collected separately.
melting is what you do to a material that is metal, without flux. What you would do with pure PMs. Smelting is what is done to remove impurities from gold and reduce/oxidize other materials out. Since gold does not oxidize borax affects lighter elements that oxidize and rise to the surface.hat you would do with pure PMs. Smelting is what is done to remove impurities from gold and reduce/oxidize other materials out. Since gold does not oxidize borax affects lighter elements that oxidize and rise to the surface.
Borax is a name for several different but similar chemical compounds, of which probably the commonest is sodium decahydrate or sodium borate. They all contain sodium and boron. Borax is toxic enough to kill ants, fleas and cockroaches and other unwanted insect life. Its effects upon the environment are not yet well documented but it can be toxic to aquatic life if too concentrated. It is regarded by the Australian government as a low threat to the environment but a moderate threat to health.