14332-62-8 Usage
Description
Magnesium iodide is a chemical compound with the formula MgI2, consisting of magnesium and iodine elements. It is known to form three hydrates, MgI2·6H2O, MgI2·8H2O, and MgI2·10H2O, with the decahydrate being the most stable. MgI2·8H2O is a crystalline powder that is white, deliquescent, and discoloring in air. It is soluble in water, alcohol, and ether, and has been used in the medical field. The anhydrous compound has a molecular weight of 278.1139 g/mol, a melting point of 637°C, a density of 4.43 g/cm3, and a water solubility of 1480 g/l at 18°C. Magnesium iodide is stable at high heat under a hydrogen atmosphere but decomposes in air at normal temperatures, turning brown due to the release of elemental iodine. When heated in air, it decomposes completely to magnesium oxide, releasing iodine vapor.
Uses
1. Used in Organic Synthesis:
Magnesium iodide is used as a reagent for preparing many compounds for organic synthesis.
2. Used in the Baylis-Hillman Reaction:
Magnesium iodide is used as a catalyst in the Baylis-Hillman reaction, an organic reaction of an aldehyde and an α,β-unsaturated electron-withdrawing group. The usage of MgI2 in this reaction tends to give vinyl-specific compounds.
3. Used in the Reaction of 2,3,4,6-tetra-O-benzyl-D-gluconolactone or 2,3,4,6-tetra-O-benzyl-D-mannono-lactone:
Magnesium iodide is used as a catalyst in the reaction of 2,3,4,6-tetra-O-benzyl-D-gluconolactone or 2,3,4,6-tetra-O-benzyl-D-mannono-lactone with MgI2 in EtOH, which affords the respective C-2 epimer.
4. Used in Medicine:
Magnesium iodide, specifically the MgI2·8H2O form, has been used in the medical field due to its solubility in water, alcohol, and ether.
Preparation
Magnesium iodide is the name for the chemical compounds with the formulas MgI2 and its various hydrates Mgl2(H20)X. lt has few commercial uses, but can be used to prepare compounds for organic synthesis. Magnesium iodide can be produced from magnesium oxide, magnesium hydroxide, and magnesium carbonate by reaction with hydroiodic acid:MgO＋ 2HI →MgI2+ H2OMg(OH)2+ 2HI → Mgl2+2H2OMgCO3+2HI →MgI2+ CO2+ H2O
Check Digit Verification of cas no
The CAS Registry Mumber 14332-62-8 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,4,3,3 and 2 respectively; the second part has 2 digits, 6 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 14332-62:
(7*1)+(6*4)+(5*3)+(4*3)+(3*2)+(2*6)+(1*2)=78
78 % 10 = 8
So 14332-62-8 is a valid CAS Registry Number.
InChI:InChI=1/2HI.Mg/h2*1H;/q;;+2/p-2
14332-62-8Relevant articles and documents
Steric effects in chemiluminescent reactions of metastable Ca*, Sr* atoms with isomeric propyl halides
Pranszke,Kierzkowski,Kowalski
, p. 183 - 190 (1999)
Reactions of metastable alkaline earth atoms with normal and branched propyl halides were studied in a beam-gas arrangement. Chemiluminescence spectra of alkaline earth monohalides were observed for calcium and strontium reactions. Some differences in the CaX (B 2Σ+ / A 2Π) branching ratio were found with isomeric variation of the targets. Total collision cross-sections for Mg* and Ca* reactions are independent of the isomeric substitution; for strontium the values for isopropyl iodide are 50% higher than those for normal propyl iodide target. Differences in chemiluminescence cross-sections are found for reactions of calcium with propyl iodides and propyl chlorides.
