Iron sulfide or Iron sulphide refers to a chemical compound of iron and sulfur with a wide range of stoechiometric formulae and different crystalline structures.
Iron is an element, its symbol in the periodic table is Fe and its melting point is 1538°C. Sulphur is also an element, its symbol in the periodic table is S and its melting point is 115.2°C. Iron is a metal and its atomic mass is 56. Sulphur is a non-metal and its atomic mass is 32. Iron is a silvery grey colour, sulphur is a yellow colour and the iron sulphide is a black colour! After a chemical reaction, the two elements, iron and sulphur, are chemically joined together to form iron sulphide, which is a compound. The symbol for this compound is FeS.
The mixture of iron and sulphur could be separated by using a magnet. You could pick up the iron with a magnet as it is magnetic and so the sulphur would be left behind if it was a mixture. If it was a chemical reaction you couldn’t separate them (you could actually separate them but you need a lot of energy to do this!).
Read more about Iron Sulfide: Natural Minerals, Artificial Product
Famous quotes containing the word iron:
“Along the iron veins that traverse the frame of our country, beat and flow the fiery pulses of its exertion, hotter and faster every hour. All vitality is concentrated through those throbbing arteries into the central cities; the country is passed over like a green sea by narrow bridges, and we are thrown back in continually closer crowds on the city gates.”
—John Ruskin (1819–1900)