3813. Ethyl Iodide

Nomenclature

CAS number: 75-03-6
Iodoethane.
C2H5I; mol wt 155.97.
C 15.40%, H 3.23%, I 81.36%.
CH3CH2I.

Description and references

Made by the action of iodine on alcohol in the presence of red phosphorus. Ethyl iodide contains about 98% CH3CH2I and about 2% alcohol.

Properties

Heavy, clear, very refractive liquid; ethereal odor. When freshly prepared it is colorless, but soon becomes red (on exposure to light and air) due to liberation of iodine. Silver leaf prevents or greatly retards decompn. d2020 1.950. bp 72°. mp -108°. nD15 1.5168. Sol in 250 parts water with gradual decompn; miscible with alcohol and most organic solvents. Keep dry and cool, tightly closed, protected from light.