Metals such as silver and gold are used for making jewellery. Copper is used for making cooking utensils, electrical wires, etc. Iron is used for making machinery, automobiles, pipes, containers, nails, etc. Aluminium is used for making electrical cables, packaging, cooking utensils, etc. Non-metals such as Sulphur is used to manufacture compounds like sulphuric acid and sulphates and produce matches, dyes, and gunpowder. Graphite is used in pencils, zinc-carbon batteries, and brake linings. Hydrogen synthesises ammonia and methyl alcohol in welding torches, etc. Phosphorus is used in the fireworks industry and for making special glasses used in sodium lamps.