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Tincture of iodine, iodine tincture, or weak iodine solution is an antiseptic. It is usually 2 to 3% elemental iodine , along with potassium iodide or sodium iodide , dissolved in a mixture of ethanol and water.
Ethyl iodide (also iodoethane) is a colorless flammable chemical compound.It has the chemical formula C 2 H 5 I and is prepared by heating ethanol with iodine and phosphorus. [2] On contact with air, especially on the effect of light, it decomposes and turns yellow or reddish from dissolved iodine.
In 1822, Georges-Simon Serullas added potassium metal to a solution of iodine in ethanol and water to form potassium formate and iodoform, called in the language of that time hydroiodide of carbon. [12] In 1832, Justus von Liebig reported the reaction of chloral with calcium hydroxide to form chloroform and calcium formate. [13]
In the alternative, iodine may be produced from iodophors, which contain iodine complexed with a solubilizing agent (the iodide ion may be thought of loosely as the iodophor in triiodide water solutions). Examples of such preparations include: [11] Tincture of iodine: iodine in ethanol, or iodine and sodium iodide in a mixture of ethanol and water.
Iodine is the fourth halogen, being a member of group 17 in the periodic table, below fluorine, chlorine, and bromine; since astatine and tennessine are radioactive, iodine is the heaviest stable halogen. Iodine has an electron configuration of [Kr]5s 2 4d 10 5p 5, with the seven electrons in the fifth and outermost shell being its valence ...
The traditional iodine antiseptic is an alcohol solution (called tincture of iodine) or as Lugol's iodine solution. Some studies [ 16 ] do not recommend disinfecting minor wounds with iodine because of concern that it may induce scar tissue formation and increase healing time.
The three major antimicrobial compounds containing iodine are alcohol-iodine solution, an aqueous solution of iodine, and iodophors. Iodophors are more bactericidal and are used as antiseptics as they are less irritating when applied to the skin. Bacterial spores on the other hand cannot be killed by iodine, but they can be inhibited by iodophors.
A tincture prepared from white willow bark and ethanol, containing salicin (from which salicylic acid-based products like aspirin are derived) A tincture is typically an extract of plant or animal material dissolved in ethanol (ethyl alcohol). Solvent concentrations of 25–60% are common, but may run as high as 90%. [1]