what was the source from which this element was found when he discovered it?
Saltpetre
Iodine
saltpetre
where does naturally source of iodine come from Seafood, such as fish, seaweeds (such as kelp) and shellfish, dairy products and eggs etc what is the atomic number of this element? 53 how does this element look physically at normal temperature conditions? It exists as a lustrous, purple-black non-metallic solid. name some of its isotopes Iodine-129, iodine-127, iodine-123, iodine-125 etc name some of its compounds. Carbon monoxide, nitric oxide, sulfur dioxide etc what are some of the uses of this element? They are used to form potassium iodide, inorganic iodine compounds, organoiodine compounds, catalysts, animal feed supplemtns, stablilisers etc what can be the toxicity of this element? It is toxic if taken orally undiluted and can cause skin irritants if in direct contact. who is the first person to discover this element? Bernard Courtois
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Iodine [SEP] History
In 1811, iodine was discovered by French chemist Bernard Courtois, who was born to a manufacturer of saltpetre (an essential component of gunpowder). At the time of the Napoleonic Wars, saltpetre was in great demand in France. Saltpetre produced from French nitre beds required sodium carbonate, which could be isolated from seaweed collected on the coasts of Normandy and Brittany. To isolate the sodium carbonate, seaweed was burned and the ash washed with water. The remaining waste was destroyed by adding sulfuric acid. Courtois once added excessive sulfuric acid and a cloud of purple vapour rose. He noted that the vapour crystallised on cold surfaces, making dark crystals.