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67692 Sigma-Aldrich

Iodomethane

purum, ≥99.0% (GC)

Synonym: Methyl iodide

  • CAS Number 74-88-4

  • Empirical Formula (Hill Notation) CH3I

  • Molecular Weight 141.94

  •  Beilstein Registry Number 969135

  •  EC Number 200-819-5

  •  MDL number MFCD00001073

  •  PubChem Substance ID 329760660

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Properties

Related Categories β-Glucuronidase Drug Analysis Bundle, Alkyl, Analytical and Industrial Enzymes, Biochemicals and Reagents, Building Blocks,
vapor density   4.89 (vs air)
vapor pressure   24.09 psi ( 55 °C)
  7.89 psi ( 20 °C)
InChI Key   INQOMBQAUSQDDS-UHFFFAOYSA-N
grade   purum
assay   ≥99.0% (GC)
contains   silver wool as stabilizer
impurities   ≤0.5% CH2I2
refractive index   n20/D 1.530
  n20/D 1.531(lit.)
bp   41-43 °C(lit.)
  41-43 °C
mp   −64(lit.)
solubility   water: soluble 14 g/L at 20 °C
density   2.28 g/mL at 25 °C(lit.)

Description

Application

Iodomethane (Methyl iodide) may be employed in the preparation of stable neutral solutions of hypoiodous acid and various methyl esters.

General description

Iodomethane (Methyl iodide) is a colorless liquid. It can be prepared by reacting dimethyl sulfate with concentrated KI. Reaction of iodine and phosphorous with methanol has been reported to afford iodomethane. It reacts with tris(triphenylphosphine)chlororhodium(I) to afford the octahedral complex of rhodium(III), [RhlCl(CH3)(PPh3)2(ICH3)]. Kinetics of its reaction with atomic chlorine in the gas phase has been investigated. The absolute rate constant of the reaction has been reported.

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Safety Information

Symbol 
Signal word 
Danger
Hazard statements 
Precautionary statements 
RIDADR 
UN 2644 6.1 / PGI
WGK Germany 
3
Protocols & Articles

Articles

US EPA Method 8260: GC Analysis of Volatiles on SPB®-624 after Purge & Trap using "K" Trap, Fast GC Analysis

From our library of Articles, Sigma-Aldrich presents US EPA Method 8260: GC Analysis of Volatiles on SPB®-624 after Purge & Trap using "K" Trap, Fast GC Analysis
Keywords: Chromatography, Gas chromatography, Gas chromatography mass spectrometry, Mass spectrometry, Purge and trap, Purification, Solid phase microextractions

US EPA Method 8260: GC Analysis of Volatiles on SPB®-624 after Purge & Trap using "K" Trap

From our library of Articles, Sigma-Aldrich presents US EPA Method 8260: GC Analysis of Volatiles on SPB®-624 after Purge & Trap using "K" Trap
Keywords: Chromatography, Environmental, Gas chromatography, Purification, Solid phase microextractions

US EPA Method 8260: GC Analysis of Volatiles on VOCOL® after Purge & Trap using "K" Trap, Fast GC Analysis

From our library of Articles, Sigma-Aldrich presents US EPA Method 8260: GC Analysis of Volatiles on VOCOL® after Purge & Trap using "K" Trap, Fast GC Analysis
Keywords: Chromatography, Gas chromatography, Purification, Solid phase microextractions

US EPA Method 8260: GC Analysis of Volatiles on VOCOL® after Purge & Trap using "K" Trap

From our library of Articles, Sigma-Aldrich presents US EPA Method 8260: GC Analysis of Volatiles on VOCOL® after Purge & Trap using "K" Trap
Keywords: Chromatography, Gas chromatography, Purification, Solid phase microextractions

Peer-Reviewed Papers
15

References

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