|Molecular formula||CHI 3|
yellow, shiny leaves, hexagonal tablets or lemon-yellow, fine powder with a saffron-like odor
|External identifiers / databases|
|Molar mass||393.73 g mol −1|
4.008 g cm −3 (20 ° C)
119 ° C
218 ° C
|ΔH f 0||
181.1 ± 1.0 kJ mol −1
|As far as possible and customary, SI units are used. Unless otherwise noted, the data given apply to standard conditions .|
According to Fieser & Fieser, iodoform, together with tetraiodomethane, is the only colored organic compound without an unsaturated structural element.
Extraction and presentation
Iodoform can be obtained from compounds with a CH 3 CHOH group or CH 3 CO group such as ethanol or acetone using Lugol's solution . The iodoform sample makes use of this reaction , with which the groups mentioned can be detected. For this purpose, for example, ethanol is dissolved in sodium hydroxide solution and Lugol's solution is added.
The exact mechanism for the preparation of iodoform from ethanol or acetone is similar to the mechanism of the haloform reaction .
It is used for Takai olefination .
In the past, iodoform (iodoform ether) dissolved in diethyl ether was used in dental medicine to disinfect wounds, as it releases a small, disinfecting amount of iodine with the moisture in the wound. At the same time, it also dried the wound, stopped minor bleeding and reduced the pain in the wound. Because of its characteristically intense odor, its high price and its harmfulness at high doses, iodoform is hardly used any more medically. Iodoform is still used very often in dentistry - it is the standard disinfectant for wound dressing using gauze strips and is used as a filling paste (with calcium hydroxide ) in the milk root filling .
- entry to iodoform in CosIng database of the European Commission, accessed on 30 June 2020th
- entry on iodoform. In: Römpp Online . Georg Thieme Verlag, accessed on March 3, 2014.
- Appendix I List of substances, MAK values and TRK values , 2007.
- Swiss Accident Insurance Fund (Suva): Limit values - current MAK and BAT values (search for 75-47-8 or Iodoform ), accessed on November 2, 2015.
- AS Carson, PG Laye, JB Pedley, Alison M. Welsby: The enthalpies of formation of iodomethane, diiodomethane, triiodomethane, and tetraiodomethane by rotating combustion calorimetry , in: The Journal of Chemical Thermodynamics , 1993 , 25 (2) , p. 261-269; doi : 10.1006 / jcht.1993.1025 .
- Fieser, M. Fieser: Organische Chemie , 2nd edition, Verlag Chemie, Weinheim 1979, pp. 404-405.