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The low solubility of silver iodide and lead iodide reflects the covalent character of these metal iodides. A test for the presence of iodide ions is the formation of yellow precipitates of these compounds upon treatment of a solution of silver nitrate or lead(II) nitrate. [2] Aqueous solutions of iodide salts dissolve iodine better than pure ...
Iridium(IV) iodide is a binary chemical compound of iridium and iodide with the chemical formula IrI 4. [1] [2] [3]
This is a list of common chemical compounds with chemical formulae and CAS numbers, indexed by formula. This complements alternative listing at list of inorganic compounds . There is no complete list of chemical compounds since by nature the list would be infinite.
Sodium iodide (chemical formula NaI) is an ionic compound formed from the chemical reaction of sodium metal and iodine. Under standard conditions, it is a white, water-soluble solid comprising a 1:1 mix of sodium cations (Na +) and iodide anions (I −) in a crystal lattice. It is used mainly as a nutritional supplement and in organic 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.
It was formerly called plumbous iodide. The compound currently has a few specialized applications, such as the manufacture of solar cells , [ 12 ] X-rays and gamma-ray detectors. [ 13 ] Its preparation is an entertaining and popular demonstration in chemistry education, to teach topics such as precipitation reactions and stoichiometry . [ 14 ]
Vanadium(III) iodide is the inorganic compound with the formula VI 3. This paramagnetic solid is generated by the reaction of vanadium powder with iodine at around 500 °C. [ 1 ] The black hygroscopic crystals dissolve in water to give green solutions, characteristic of V(III) ions.
Iridium(III) iodide is a dark brown solid that is insoluble in water. [1] It is monoclinic like chromium trichloride . [ 5 ] [ 6 ] Its trihydrate is yellow and can be dehydrated into the dihydrate or anhydrous form on heating.