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  2. Potassium iodide - Wikipedia

    en.wikipedia.org/wiki/Potassium_iodide

    Potassium iodide is a component in the electrolyte of dye sensitised solar cells (DSSC) along with iodine. Potassium iodide finds its most important applications in organic synthesis mainly in the preparation of aryl iodides in the Sandmeyer reaction, starting from aryl amines. Aryl iodides are in turn used to attach aryl groups to other ...

  3. Mayer's reagent - Wikipedia

    en.wikipedia.org/wiki/Mayer's_reagent

    Mayer's reagent is an alkaloidal precipitating reagent used for the detection of alkaloids in natural products. Mayer's reagent is freshly prepared by dissolving a mixture of mercuric chloride (1.36 g) and of potassium iodide (5.00 g) in water (100.0 ml).

  4. Potassium iodate - Wikipedia

    en.wikipedia.org/wiki/Potassium_iodate

    It can also be prepared by adding iodine to a hot, concentrated solution of potassium hydroxide: [1] 3 I 2 + 6 KOH → KIO 3 + 5 KI + 3 H 2 O. Or by fusing potassium iodide with potassium chlorate, bromate or perchlorate, the melt is extracted with water and potassium iodate is isolated from the solution by crystallization: [2] KI + KClO 3 → ...

  5. Organoiodine chemistry - Wikipedia

    en.wikipedia.org/wiki/Organoiodine_chemistry

    For example, in the molecules represented by CH 3 X, where X is a halide, the carbon-X bonds have strengths, or bond dissociation energies, of 115, 83.7, 72.1, and 57.6 kcal/mol for X = fluoride, chloride, bromide, and iodide, respectively. [2] Of the halides, iodide usually is the best leaving group.

  6. Dragendorff's reagent - Wikipedia

    en.wikipedia.org/wiki/Dragendorff's_reagent

    The black precipitate of bismuth iodide is formed from the reaction of bismuth ion and potassium iodide. Bi 3+ + 3 KI → BiI 3 + 3 K + Then, the reaction between bismuth ion and excess potassium iodide will produce a soluble complex of potassium tetraiodobismuthate which has an orange color. BiI 3 + KI → K(BiI 4)

  7. Iodometry - Wikipedia

    en.wikipedia.org/wiki/Iodometry

    For prolonged titrations, it is advised to add dry ice to the titration mixture to displace air from the Erlenmeyer flask so as to prevent the aerial oxidation of iodide to iodine. Standard iodine solution is prepared from potassium iodate and potassium iodide, which are both primary standards: IO − 3 + 8 I − + 6 H + → 3 I − 3 + 3 H 2 O

  8. Iodised salt - Wikipedia

    en.wikipedia.org/wiki/Iodised_salt

    Percentage of share of households consuming iodized salt. Edible salt can be iodised by spraying it with a potassium iodate or potassium iodide solution. 57 grams of potassium iodate, costing about US$1.15 (in 2006), is required to iodise a ton (2,000 pounds) of salt. [1]

  9. Potassium tetraiodomercurate (II) - Wikipedia

    en.wikipedia.org/wiki/Potassium_tetraiodomer...

    Potassium tetraiodomercurate(II) is an inorganic compound with the chemical formula K 2 [Hg I 4]. It consists of potassium cations and tetraiodomercurate(II) anions. It is the active agent in Nessler's reagent, used for detection of ammonia .

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