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Iodomethane, also called methyl iodide, and commonly abbreviated "MeI", is the chemical compound with the formula CH 3 I. It is a dense, colorless, volatile liquid. In terms of chemical structure, it is related to methane by replacement of one hydrogen atom by an atom of iodine. It is naturally emitted in small amounts by rice plantations. [5]
Diiodomethane or methylene iodide, commonly abbreviated "MI", is an organoiodine compound. Diiodomethane is a very dense colorless liquid; however, it decomposes upon exposure to light liberating iodine, which colours samples brownish. It is slightly soluble in water, but soluble in organic solvents.
In 2011 when the settlement was reached, the EPA planned to replace methyl bromide with methyl iodide, which breaks down within 12 days [23] and does not deplete the ozone layer. [6] A plaintiffs' attorney in the methyl bromide complaint said: I still do not know why EPA did not include the fumigants that were replacing methyl bromide.
Methyl iodide is a reagent used for O-methylation, like dimethyl sulfate, but it is less hazardous and more expensive. [15] Dimethyl carbonate, which is far less reactive, has far lower toxicity compared to both dimethyl sulfate and methyl iodide. [18] High pressure can be used to accelerate methylation by dimethyl carbonate.
The IARC Monographs on which this list is based assess the hazard linked to the agents, ... Methyl iodide; Methyl methacrylate; Methyl parathion; 1-Methylphenanthrene ...
Trimethylsulfoxonium iodide is a sulfoxonium salt derived from dimethylsulfoxide. It is iodide salt of a common sulfoxonium ions. This compound, a colorless solid, is commercially available. It may be prepared by the alkylation of dimethyl sulfoxide with iodomethane: [1] (CH 3) 2 SO + CH 3 I → (CH 3) 3 SO + I −
Methyl bromide is also an effective fumigant, but its production and use are controversial. [citation needed] Alkyl iodides No large scale applications are known for alkyl iodides. Methyl iodide is a popular methylating agent in organic synthesis. [citation needed] Chlorofluorocarbons
Methyl acetate is used in place of methanol as a source of methyl iodide. [5] CH 3 CO 2 CH 3 + CO → (CH 3 CO) 2 O. In this process lithium iodide converts methyl acetate to lithium acetate and methyl iodide, which in turn affords, through carbonylation, acetyl iodide. Acetyl iodide reacts with acetate salts or acetic acid to give the anhydride.