Oceans are one of the world's greatest sources of iodine. Iodine can also be found in other salty waters, such as brines found near oil deposits. China, Japan, Russia and Chile are some of the top global producers of iod... More »

Granite makes up a portion of the Earth's crust, and exists in virtually all land areas around the world. Granite forms the middle layer of the Earth's core, along with several other minerals and rocks. It forms the basi... More »

Talc is fairly common and found all over the world, with China being the top producer of talc with 2300 metric tonnes annually as of June 2014, according to MapsofWorld.com. The second largest producer of talc is South K... More »

A haloform reaction is a chemical reaction during which a methyl ketone is halogenated by chlorine, bromine or iodine in the presence of a base to form a haloform. A haloform is an alkyl halide. More »

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Survivalists and outdoorsmen add iodine crystals to water, because iodine chemically purifies and disinfects untreated water. These crystals are used as a temporary measure, as iodine can be toxic in large quantities, es... More »

When iodine and starch interact, iodine molecules become arranged within the starch molecules in a linear fashion. The visible end result of this arrangement is the appearance of a blue-black coloration. More »

Walgreen's Pharmacy indicates that tincture of iodine is a topical medication used to prevent infection in minor scrapes, cuts and burns. Iodine tincture should not be used on animal bites or over large areas of the body... More »