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  2. Potassium permanganate - Wikipedia

    en.wikipedia.org/wiki/Potassium_permanganate

    The reagent is an alkaline solution of potassium permanganate. Reaction with double or triple bonds (R 2 C=CR 2 or R−C≡C−R) causes the color to fade from purplish-pink to brown. Aldehydes and formic acid (and formates) also give a positive test. [43] The test is antiquated. Baeyer's reagent reaction

  3. Glycol cleavage - Wikipedia

    en.wikipedia.org/wiki/Glycol_cleavage

    Warm concentrated potassium permanganate (KMnO 4) will react with an alkene to form a glycol. Following this dihydroxylation, the KMnO 4 can then cleave the glycol to give aldehydes or ketones. The aldehydes will react further with (KMnO 4), being oxidized to become carboxylic acids.

  4. Potassium manganate - Wikipedia

    en.wikipedia.org/wiki/Potassium_manganate

    Potassium permanganate will decompose into potassium manganate, manganese dioxide and oxygen gas: 2 KMnO 4 → K 2 MnO 4 + MnO 2 + O 2. This reaction is a laboratory method to prepare oxygen, but produces samples of potassium manganate contaminated with MnO 2. The former is soluble and the latter is not.

  5. Bromine test - Wikipedia

    en.wikipedia.org/wiki/Bromine_test

    Should the brown colour not disappear, possibly due to the presence of an alkene which doesn't react, or reacts very slowly with, bromine, the potassium permanganate test should be performed, in order to determine the presence or absence of the alkene. [2] The iodine value is a way to determine the presence of unsaturation quantitatively.

  6. Chemical chameleon - Wikipedia

    en.wikipedia.org/wiki/Chemical_chameleon

    The chemical chameleon reaction shows the process in reverse, by reducing violet potassium permanganate first to green potassium manganate and eventually to brown manganese dioxide: [1] [2] [5] KMnO 4 (violet) → K 2 MnO 4 (green) → MnO 2 (brown/yellow suspension) Blue potassium hypomanganate may also form as an intermediate. [6]

  7. Syn and anti addition - Wikipedia

    en.wikipedia.org/wiki/Syn_and_anti_addition

    The reaction is considered Markovnikov as it results in water addition with same regiospecificity as a direct hydration reaction. Alkene hydroboration-oxidation: Stereospecific: Can only be syn addition – hydrogen and hydroxyl (-OH) are added to the same face. The reaction is anti-Markovnikov. Hydroxyl attaches to the less substituted carbon.

  8. Research Shows Food Comas Are Real — and They Do More Than ...

    www.aol.com/lifestyle/research-shows-food-comas...

    Gifts, Christmas carols, seasonal decorations, and mulled wine are all great, but is there really anything better about the holidays than the abundant freedom to nap?

  9. Alcohol oxidation - Wikipedia

    en.wikipedia.org/wiki/Alcohol_oxidation

    Alcohol oxidation is a collection of oxidation reactions in organic chemistry that convert alcohols to aldehydes, ketones, carboxylic acids, and esters. The reaction mainly applies to primary and secondary alcohols. Secondary alcohols form ketones, while primary alcohols form aldehydes or carboxylic acids. [1] A variety of oxidants can be used.