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Iodine was discovered by the French chemist Barnard Courtois in 1811.
Iodine is a bluish-black, shiny solid. Although it is less reactive than the elements above it in group 17 (fluorine, chlorine and bromine) it still forms compounds with many other elements. Iodine is a non-metal. It's boiling point is 457 K (184 oC) and melting point is 386.6 K (113.5 oC).
Iodine belongs to group 7A ,the Halogens. Belongs to period 5 in the Periodic Table.
Iodine might be used in its pure form, but most of the times it is not used as a pure iodine.
What else can I help you with?
What does lugol's iodine?
it is iodine and potassium iodide solution It's a orange colored solution that consists of Iodine and Potassium Iodide and is used to test a substance for starch. If the color of the solution turns black when put on/in the substance, then the substance is positive for starch.
Will carbon tetrachloride dissolve Iodine?
yes it will because both iodine I2 and Carbon tetrachloride CCL4 are both non polar It will turn a deep violet color when reacted Remeber the phrase, " like dissolves like" this is different interms of water. Although Iodine is to some degree soluble in water, it is not as soluble as it is in CCL4, because water is a poler compound, remember positive and negative deltas's so in this case it is polar water cannot effiviently dissolve nonpolar Iodine
Is iodine dissolve in turpentine?
No, iodine is not soluble in turpentine. Turpentine is a non-polar solvent, while iodine is a polar substance. To dissolve iodine, a polar solvent like alcohol or water is needed.
What happens when you put iodine solution on crisps?
Crisps are made from potatoes which are very high in starch. When iodine is added to starch it forms a complex with it and results in a purplish color. you get the same thing if you put an iodine sol'n on bread or cornstarch.
Diff between gram's iodine and iodine?
iodine& grams iodine Gram's iodine is a solution of 2% iodine and 3% potassium iodide in 70% ethanol. Gram's iodine is also used as a forensic toxicology reagent for the detection of alkaloids, as a source of iodine for iodometric titrations, as an indicator for the presence of starch, and as a general laboratory source of iodine/iodide. This solution is laboratory grade, and not for medicinal use. Iodine is non metallic,dark gray,lustrous,solid element
How does iodine look like?
yellow
What does particles in iodine gas look like?
they look like small circles which float around
Iodine turns what colour when its positive for starch?
Iodine turns blue-black when it tests positive for starch due to the formation of a starch-iodine complex.
What particles in iodine gas look like?
magenta vapout
Do proteins give positive iodine tests?
Yes, proteins can give a positive iodine test. When iodine reacts with proteins, it forms a complex that results in a brown color change, indicating a positive test for proteins.
What is a iodine look like?
Elemental iodine appears as a shiny, dark violet crystalline solid. It can also be found in a dark purple liquid form called iodine tincture.
What does particles in a iodine gas look like?
Violet - blue I2 molecules
Is glucose expected to have a positive iodine test?
Yes, glucose is expected to give a positive iodine test. Iodine reacts with glucose to form a blue-black color, indicating the presence of reducing sugars in the sample.
What does iodine look like in nature?
Bluish-Black Solid, and Purple in Gaseous state
What is the action of iodine in grams stain?
Iodine is used to bind the Crystal Violet to the Gram Positive microbes.
Does taking 5 percent iodine helps to cure or reduce Parkinsons?
Any positive effect of iodine.
Is Iodine positive or negative?
Iodine is considered a neutral element in its elemental form, but it can form negative ions known as iodide (I⁻) when it gains an electron. In compounds, iodine can exhibit both positive and negative oxidation states, but it is most commonly found in the -1 state as iodide. So, whether iodine is "positive" or "negative" depends on its specific chemical context.
