Tincture of iodine - Wikipedia
网页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.
THE TRIIODOMETHANE (IODOFORM) REACTION WITH ALCOHOLS …
网页Ethanol is the only primary alcohol to give the triiodomethane (iodoform) reaction. If "R" is a hydrocarbon group, then you have a secondary alcohol. Lots of secondary alcohols give this reaction, but those that do all have a methyl group attached to the carbon with the …
The Triiodomethane (Iodoform) Reaction - Chemistry LibreTexts
网页2023年1月23日 · The triiodomethane (iodoform) reaction can be used to identify the presence of a CH 3 CH (OH) group in alcohols. There are two apparently quite different mixtures of reagents that can be used to do this reaction, but are chemically equivalent. This is chemically the more obvious method.
Iodine Activation of Alcohols: A Computational Study
网页2018年4月9日 · Iodine efficiently catalyzes nucleophilic substitution of benzylic alcohols including aryl-propargyl-methanols with oxygen and carbon nucleophiles in MeCN solvent [12, 13]. Under solvent-free conditions, tertiary benzylic alcohols undergo elimination, substitution, and cycloisomerization depending on the substitutents [ 14 ].
Iodine - Wikipedia
网页Checked. Iodine is a chemical element; it has symbol I and atomic number 53. The heaviest of the stable halogens, it exists at standard conditions as a semi-lustrous, non-metallic solid that melts to form a deep violet liquid at 114 °C (237 …
3 Ways to Prepare Iodine Solution - wikiHow
网页2024年6月3日 · You can prepare a wide variety of iodine solutions for chemical tests, medical treatments, and antiseptic use. While each solution calls for a different recipe, all of them require potassium iodide and iodine crystals. Mix standard solutions in distilled water, and tinctures of iodine in ethyl alcohol.
- 查看次数: 9.7万
How to cheaply extract iodine from an alcoholic solution?
网页2015年1月30日 · Your best bet is to evaporate the alcohol from the solution to get Iodine. Iodine boils at $184.3\,^{\circ}{\rm C}$. But the vapor pressure of Iodine causes it to melt anyway.
How Drinking Alcohol Affects Your Thyroid - Verywell Health
网页2023年12月27日 · These hormones are fueled by iodine, which is used to make thyroid hormones. Studies have found that alcohol causes direct cellular toxicity of thyroid cells, leading to reduced production of T3 and T4 hormones. Heavier alcohol use is associated with a more significant reduction of T3 hormones.
Iodination of alcohols using triphenylphosphine/iodine under solvent ...
网页2006年6月19日 · The iodination of benzyl alcohol was selected for optimization of the reaction conditions. Initially, we studied the conversion of benzyl alcohol (1 mmol, 0.1 mL) to benzyl iodide with triphenylphosphine (1.0 mmol, 0.26 g) and iodine (1.0 mmol, 0.25 g) in the presence of various solvents and also under solvent-free conditions (grinding) with or ...
Iodination of Alcohols using Triphenylphosphine/Iodine in …
网页2009年4月14日 · Iodination of Alcohols using Triphenylphosphine/Iodine in Ionic Liquid under Solvent-Free Conditions. Abdol Reza Hajipour Department of Chemistry, Pharmaceutical Research Laboratory, Isfahan University of Technology, Isfahan, Iran; Department of Pharmacology, University of Wisconsin Medical School, Madison, Wisconsin, USA. ,