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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 ...
Cerium diiodide can be obtained from the reduction of cerium(III) iodide with metallic cerium under vacuum at 800 °C to 900 °C. [2] Ce + 2 CeI 3 → CeI 2. It can also be formed from the reaction of cerium and ammonium iodide in liquid ammonia at −78 °C. The reaction forms an ammonia complex of cerium diiodide, which decomposes to cerium ...
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.
Chemical formula. I 4 Ir: Molar mass: 699.835 g·mol −1 Appearance Black powder ... iodide is a binary chemical compound of iridium and iodide with the chemical ...
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.
Indium(I) iodide forms a brown-red diamagnetic solid. Its melt is black. Its melt is black. The compound has an orthorhombic crystal structure in the space group Cmcm (space group no. 63) with the lattice parameters a = 475 pm, b = 1276 pm, c = 491 pm. [ 5 ]
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.
Chemical formula. Cf I 2: Molar mass: 505 g·mol −1 Appearance dark purple solid ... iodide is a binary inorganic compound of californium and iodine with the ...