74-88-4

Product Details:

CasNo： 74-88-4

Molecular Formula： CH3I

Purity： 99%

Synonyms: IODOMETHANESYNONYMS/METHYLIODIDE; METHYLIODIDE,REAGENT; 10domethane; CH3I

Melting point: -64°C (lit.)

Boiling point: 41-43 °C

Density: 2.28 g/mL at 25 °C (lit.)

Vapor density: 4.89 (vs air)

Vapor pressure: 24.09 psi (55 °C)

Fp: -18°F

Solubility: water: soluble14g/L at 20°C

Form: Liquid

Color: Clear

Odor: Sweet, ethereal odor

PH: 5.2 (H2O, 25℃)

Water Solubility: 14 g/L (20 ºC)

Sensitive: Light Sensitive

Dielectric constant: 7.0（20℃）

Stability: Light Sensitive

Overview:
Iodomethane is also commonly called methyl iodide. It is a volatile liquid related to methane by replacement of hydrogen. Iodomethane is miscible with common organic solvents. It is colourless, although upon exposure to light, samples develop a purplish tinge. Iodomethane (methyl iodide) is widely used in organic synthesis to deliver a methyl group, via the transformation called methylation.

Physicochemical properties:

Iodomethane, an alkyl halide, is a colorless to pale yellow liquid with an acrid odor. It is stable at room temperature in sealed containers, non-corrosive to metals, and incompatible with strong oxidizing and reducing agents. On exposure to light and moisture, the color turns yellow, red or brown due to decomposition and the liberation of free iodine. When heated to decomposition in air at 270 degree, toxic iodine vapors are emitted. Iodomethane is soluble in water, and is miscible with alcohol and ether.

Uses:

Methylating agent; in microscopy because of its high refractive index; as imbedding material for examining diatoms; in testing for pyridine. Light sensitive etching agent for electronic circuits; component in fire extinguishers.

Iodomethane is an approved pesticide used to control insects, plant parasitic nematodes, soil borne pathogens and weed seeds.