Nanjing Chemical Material Corp.

The Preparation Technology and Storage Condition of Methyl Iodide The Preparation Technology and Storage Condition of Methyl Iodide

Methyl iodide cas is a halogenated hydrocarbon. The molecular formula is CH3I, MeI and it is an iodide substitute of methane. Methyl iodide cas is a kind of volatile liquid with high density at room temperature. The dipole moment is 1.59D and the refractive index is 1.5304 (20℃, D) and 1.5293 (21℃, D). Methyl iodide cas can be miscible with common organic solvents. The pure methyl iodide cas is colorless, but if exposed to sunlight, it will appear purple because iodine is separated out. The iodine can be removed by adding copper. Methyl iodide cas is present in rice fields in a small amount. Methyl iodide cas is a commonly used methylation reagent in organic synthesis.

When iodine is added to the mixture of methyl alcohol and red phosphorus, an exothermic reaction will happen to produce methyl iodide cas:

5CH3OH + P + 2.5I2→5CH3I + H3PO4 + H2O

The midbody of phosphorous triiodide formed in the reaction plays the role of iodization with methyl alcohol.

In addition, methyl iodide cas can also be prepared by reacting dimethyl sulfate with potassium iodide in the presence of calcium carbonate:

(CH3O)2SO2 + KI→K2SO4 + 2CH3I

First of all, distill the reaction product, then wash it with Na2S2O3, water and Na2CO3 solution to obtain pure methyl iodide cas.

Methyl iodide cas is toxic, corrosive, and may cause cancer. Methyl iodide cas should be placed in a brown bottle for storage to prevent it from being exposed to sunlight and releasing I2. Store it in a cool and well-ventilated special storehouse, and implement the system of "double transmit-receive, double storage". Keep methyl iodide cas away from fire and heat source. Keep the container sealed. It is forbidden to store methyl iodide cas with oxidants, alkalines and food chemicals. Corresponding varieties and quantities of fire fighting equipment should be equipped. The storage area shall be equipped with emergency treatment equipment for leakage and appropriate containment materials.

Related News
  • Glycolic Acid Improves the Efficiency of the Oil and Gas Industry

    Glycolic Acid Improves the Efficiency of the Oil and Gas Industry

    October 27, 2021Glycolic acid can enhance the effects of cleaning and descaling in the refining process of oil fields and petroleum. The acid can also realize the biodegradability of metal complexation without adding...view
  • Tetraethyl Ammonium Hydroxide Solution

    Tetraethyl Ammonium Hydroxide Solution

    October 13, 2021Tetraethyl ammonium hydroxide is quaternary ammonium base, a strong organic base, similar in molecular structure to ammonium hydroxide and more alkaline than sodium hydroxide and potassium hydroxide.M...view
  • Christmas Day

    Christmas Day

    May 19, 2022The end of year is approaching.The last surprise of 2021 also follows (NoNoNo, it should not be the last one, and more heavyweight surprises are about to kick off).Today's surprise: let's start the wo...view
  • Six Characteristics of Expandable Microspheres Shoes

    Six Characteristics of Expandable Microspheres Shoes

    August 18, 2021Expandable microspheres shoes are thermoplastic hollow polymer microspheres composed of a thermoplastic polymer shell and a sealed liquid paraffin gas. The average diameter of these hollow polymer mi...view
  • 2-acetyl thiazole

    2-acetyl thiazole

    July 20, 20212-acetyl thiazole is an oily liquid with aromas like popcorn, tortillas, tortillas, and bread. The melting point is 65°C, the boiling point is 95-105°C (2000Pa), and the flash point is 78°C. The re...view
  • 2-Chloropropionic Acid

    2-Chloropropionic Acid

    September 23, 20212-chloropropionic acid is a pale liquid with a slight odor and is the simplest chiral chlorocarboxylic acid. The formula of 2-Chloropropionic acid is CH3CHClCO2H. It is produced by chlorination of pro...view
  • TEL:+86-25-52337978
  • EMAIL:
  • ADDRESS:12/F, Block B, Technology and Innovation Building, Nanjing University of Technology, No.5 New Model Road, Nanjing 210009, China