Iodoform

Iodoform
Iodoform
	;
Are common
Systematic ; name	Iodoform
Chem. formula	CHI 3
Physical properties
condition	yellow crystals
Molar mass	393.73 g / mol
Density	4.008 g / cm³
Thermal properties
T. melt.	123 ° C
T. bale.	217 ° C
T. decomp.
Chemical properties
Solubility in water	0.1 g / l
Structure
Coordination geometry	tetragonal
Crystal structure	hexagonal
Classification
Reg. CAS number	[75-47-8]
PubChem
Reg. EINECS number
Smiles
Inchi
RTECS
Chebi
ChemSpider
Security
LD 50	355 mg / kg (rat, oral) ; 1180 mg / kg (rat, transdermal) ; 1.6 mmol / kg (mouse, subcutaneous) ; mg / kg
GHS icons
NFPA 704	0 2 one

Iodoform ( triiodomethane ) is an organic compound with the chemical formula CH ₃ , has the appearance of yellow crystals with a strong characteristic odor.

Properties

Yellow crystals, practically insoluble in water. It is sparingly soluble in alcohol, it is well soluble in ether , chloroform .

Getting

Iodoform is obtained from ethanol or acetone , by the action of iodine and alkalis or alkali metal carbonates :

{\mathsf {6NaHCO_{3}+4I_{2}+C_{2}H_{5}OH\rightarrow CHI_{3}\downarrow +HCOONa+5NaI+5H_{2}O+6CO_{2}\uparrow }}

{\ displaystyle {\ mathsf {6NaHCO_ {3} + 4I_ {2} + C_ {2} H_ {5} OH \ rightarrow CHI_ {3} \ downarrow + HCOONa + 5NaI + 5H_ {2} O + 6CO_ {2} \ uparrow}}}

{\mathsf {6NaHCO_{3}+4I_{2}+C_{2}H_{5}OH\rightarrow CHI_{3}\downarrow +HCOONa+5NaI+5H_{2}O+6CO_{2}\uparrow }}

The reaction proceeds as follows:

Iodoform can also be obtained by electrolysis of potassium or sodium iodide in an alcohol solution. During electrolysis, iodine and alkali are formed , which are necessary for the process. The potassium (sodium) iodide formed during the reaction is again subjected to electrolysis, and thus all salt iodine goes into the formation of iodoform.

Iodoform can also be obtained by iodoform .

Application

In medicine, iodoform is used as an antiseptic . Particularly used for gargling.
In dentistry, in some cases, iodoform is used for tamponade wells after tooth extraction.

Notes

↑ ¹ ² Record in the GESTIS Substance Database of the IFA
↑ Merck Index , 12 Edition, 5054
↑ http://www.cdc.gov/niosh/npg/npgd0343.html

Links

[GESTIS-1] ¹ ² Record in the GESTIS Substance Database of the IFA

[Merck-2] Merck Index , 12 Edition, 5054

[_3938f5908c3b1ea8-3] ttp://www.cdc.gov/niosh/npg/npgd0343.html