Acetyl iodide

Structural formula
General
Surname	Acetyl iodide
other names	Acetyl iodide
Molecular formula	C 2 H 3 IO
Brief description	red to dark red liquid
External identifiers / databases
CAS number 507-02-8 EC number 208-062-2 ECHA InfoCard 100.007.330 PubChem 10483 Wikidata Q421152
properties
Molar mass	169.95 g mol −1
Physical state	liquid
density	2.0674 g cm −3
Melting point	13 ° C
boiling point	108 ° C
Vapor pressure	67 mbar (36 ° C)
solubility	Reacts with water
Refractive index	1.5491 (20 ° C)
safety instructions
GHS labeling of hazardous substances danger H and P phrases H: 225-290-314 P: 210-233-234-241-242-243-260-264-280-304 + 340-301 + 330 + 331-305 + 351 + 338-303 + 361 + 353-363-310-390-403 + 235-405-501
Thermodynamic properties
ΔH f 0	−163.5 kJ / mol
As far as possible and customary, SI units are used. Unless otherwise noted, the data given apply to standard conditions . Refractive index: Na-D line , 20 ° C

Acetyl iodide is a chemical compound from the group of carboxylic acid halides and organic iodine compounds .

Extraction and presentation

Acetyl iodide can be obtained by reacting acetaldehyde with iodine .

${\displaystyle \mathrm {C_{2}H_{4}O+I_{2}\longrightarrow HI+C_{2}H_{3}IO} }$

properties

Acetyl iodide is a red to dark red liquid that is sensitive to light and moisture.

use

Acetyl iodide is formed as an intermediate product in the synthesis of acetic acid during the classic Monsanto process or the Hoechst-Celanese process through rhodium- catalyzed formation from methyl iodide and carbon monoxide . It reacts with water to form hydrogen iodide and acetic acid.

${\displaystyle \mathrm {C_{2}H_{3}IO+H_{2}O\longrightarrow HI+C_{2}H_{4}O_{2}} }$

Individual evidence

1. ↑ ^{a b c d} Entry on Acetyl Iodide at TCI Europe, accessed on January 21, 2012.
2. ↑ ^{a b c d e} Entry for CAS no. 507-02-8 in the GESTIS substance database of the IFA , accessed on January 21, 2012(JavaScript required) .
3. ↑ ^{a b} Dirk Steinborn: Fundamentals of organometallic complex catalysis . Vieweg + Teubner, 2009, ISBN 978-3-8348-0581-2 ( page 100 in the Google book search).
4. ↑ David R. Lide (Ed.): CRC Handbook of Chemistry and Physics . 90th edition. (Internet version: 2010), CRC Press / Taylor and Francis, Boca Raton, FL, Physical Constants of Organic Compounds, pp. 3-6.
5. ↑ David R. Lide (Ed.): CRC Handbook of Chemistry and Physics . 90th edition. (Internet version: 2010), CRC Press / Taylor and Francis, Boca Raton, FL, Standard Thermodynamic Properties of Chemical Substances, pp. 5-22.
6. ↑ Entry on Acetyl iodide . In: P. J. Linstrom, W. G. Mallard (Eds.): NIST Chemistry WebBook, NIST Standard Reference Database Number 69 . National Institute of Standards and Technology , Gaithersburg MD .