Table of Contents
What is Iodoform?
Iodoform – History: Iodoform is a yellowish-green solid that is used as a disinfectant and antiseptic. It is made by reacting ethanol with iodine and also potassium iodide.
History of Iodoform
Iodoform is a crystalline compound that is a derivative of formaldehyde and iodine. It is a white solid that is soluble in water. Iodoform has a sweet smell and a slightly bitter taste. It used as a disinfectant and antiseptic. Iodoform was first synthesized in 1864 by French chemist Auguste Cahours.
Characteristics of Iodoform
Iodoform is a yellowish-white crystalline solid with a characteristic pungent odor. It is sparingly soluble in water but soluble in organic solvents. It produced by the reaction of hydrogen iodide with formaldehyde. Iodoform used as a disinfectant and antiseptic.
Chemical Structure of Iodoform
Iodoform is a compound with the formula CHI3. It is a volatile, colorless, oily liquid with a disagreeable, pungent odor. It is soluble in water and ethanol. Iodoform used as a disinfectant and in the manufacture of pharmaceuticals, dyes, and other chemicals. The molecule consists of a carbon atom bonded to three iodine atoms. Therefore the carbon atom sp3 hybridized, and the iodine atoms sp2 hybridized. The carbon-iodine bond is polar, with the iodine atom having a higher electron density. This results in a strong dipole moment for the molecule.
Uses of Iodoform
- Iodoform is an organochlorine compound with the formula CHI3. It is a colorless, volatile, oily liquid with a disagreeable odor.
- It is soluble in water, alcohol, ether, and also chloroform.
- Iodoform used as an antiseptic and a disinfectant.
- It also used as a chemical intermediate in the manufacture of other chemicals.
The Iodoform Reaction
- The iodoform reaction is a chemical reaction between an aldehyde or ketone and an iodine molecule to form an iodoform molecule. Iodoform molecule has the formula CHI3, and is a yellow, oily liquid. The iodoform reaction used in organic chemistry to determine the presence of aldehydes and ketones.
- Iodoform reaction occurs when an aldehyde or ketone reacts with an iodine molecule to form an iodoform molecule. The iodoform molecule has the formula CHI3, and is a yellow, oily liquid.
- The iodoform reaction used to determine the presence of aldehydes and ketones. When an aldehyde or ketone is present, it will react with the iodine molecule to form the iodoform molecule. The iodoform molecule will be present in the reaction mixture as a yellow, oily liquid.
Iodoform Test- Reaction
A positive reaction to the iodochloride test occurs when a yellow to brown color produced. This occurs when the starch present in the food is hydrolyzed by the iodine and chloroform to produce aldehyde and ketone functional groups. Therefore these groups react with the Schiff’s reagent to produce a red color.
The iodoform reagent is a solution that used to test for the presence of starch. The reagent is a mixture of iodine and potassium iodide in water. When starch is present, the reagent will turn a deep blue-black color.