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Methyl iodide

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Identification
Molecular formula
CH3I
CAS number
74-88-4
IUPAC name
iodomethane
State
State

At room temperature, iodomethane is a liquid.

Melting point (Celsius)
-66.50
Melting point (Kelvin)
206.65
Boiling point (Celsius)
42.50
Boiling point (Kelvin)
315.65
General information
Molecular weight
141.94g/mol
Molar mass
141.9390g/mol
Density
2.2790g/cm3
Appearence

Iodomethane, also known as methyl iodide, is a clear, colorless liquid. It is known for its dense, heavy appearance relative to water, and it can appear slightly amber colored when aged due to the formation of iodine.

Comment on solubility

Solubility of Iodomethane (CH3I)

Iodomethane, also known as methyl iodide, exhibits interesting solubility characteristics. This compound is known to be:

  • Soluble in Organic Solvents: Iodomethane is highly soluble in a variety of organic solvents such as ethanol, acetone, and ether due to its non-polar nature.
  • Poorly Soluble in Water: While iodomethane does have limited solubility in water, it is generally regarded as insoluble or has very low solubility. This is due to the significant difference in polarity between the hydrophobic iodomethane and the polar water molecules.

The solubility dynamics of iodomethane can be summarized with a few key points:

  1. Polarity: The molecular structure of CH3I contains a polar C–I bond, which contributes to its interactions in non-polar environments.
  2. Applications: The solubility properties make iodomethane useful in certain chemical reactions as a solvent or a reactant.
  3. Environmental Considerations: Awareness of its solubility is crucial due to potential environmental implications, especially in terms of its volatility and behavior in various ecosystems.

Overall, while iodomethane displays excellent solubility in organic solvents, its `limited` solubility in water highlights the importance of understanding solubility for safety and practical applications in chemical processes.

Interesting facts

Interesting Facts About Iodomethane

Iodomethane, also known as methyl iodide, is a fascinating organic compound that has a variety of applications and intriguing properties. Here are some noteworthy aspects:

  • Uses in Agriculture: Iodomethane is primarily used as a soil fumigant in agriculture. Its effectiveness against pests, weeds, and diseases makes it a valuable tool for farmers looking to maintain healthy crops.
  • Synthesis in Organic Chemistry: This compound is widely utilized in organic synthesis due to its ability to introduce methyl groups into organic molecules. It acts as an excellent methylating agent, which is fundamental in the synthesis of various pharmaceuticals and fine chemicals.
  • Environmental Concerns: While useful, iodomethane has raised environmental concerns due to its potential impact on the ozone layer. As a volatile organic compound, it contributes to atmospheric reactions, making its regulation essential in many countries.
  • Regulation of Use: Due to its environmental effects, the use of iodomethane has been restricted in some regions, leading to ongoing research in finding safer alternatives for its applications.
  • Historical Significance: Iodomethane was first synthesized in 1837 by chemist Charles W. O. Bunsen. Its name highlights its iodine content, reflecting the halogen nature of the compound's structure.

As intriguing as it is beneficial, iodomethane exemplifies the balance between utility and environmental responsibility in modern chemistry. Its versatility makes it an indispensable compound in many scientific and industrial sectors.

Synonyms
IODOMETHANE
Methyl iodide
74-88-4
Monoiodomethane
Methane, iodo-
Methyljodid
Jod-methan
Methyliodide
Iodometano
Joodmethaan
Methyljodide
Methyl iodine
Metylu jodek
Iodure de methyle
Methyliodid
Monoioduro di metile
Halon 10001
CH3I
Joodmethaan [Dutch]
Monoiodmethan
Iodmethan
RCRA waste number U138
iodo-methane
Iodometano [Italian]
Jod-methan [German]
Methyljodid [German]
Methyljodide [Dutch]
Metylu jodek [Polish]
Iodure de methyle [French]
NSC 9366
CCRIS 395
Monoioduro di metile [Italian]
iodo methane
HSDB 1336
DAT010ZJSR
EINECS 200-819-5
CHEBI:39282
NSC-9366
MFCD00001073
METHYL IODIDE [MI]
IODOMETHANE-13C-D3
METHYL IODIDE [HSDB]
METHYL IODIDE [IARC]
DTXSID0024187
EC 200-819-5
JOODMETHAAN (DUTCH)
IODOMETANO (ITALIAN)
JOD-METHAN (GERMAN)
METHYLJODID (GERMAN)
METHYLJODIDE (DUTCH)
METHYL IODIDE (IARC)
MEI
METYLU JODEK (POLISH)
IODURE DE METHYLE (FRENCH)
MONOIODURO DI METILE (ITALIAN)
UNII-DAT010ZJSR
UN2644
RCRA waste no. U138
iodmethane
iodometane
iodomethan
iodornethane
methiodide
methyliodine
carbon-iodine
mehyl iodide
methy iodide
metyl iodide
Methyl-iodide
meth-yl iodide
1-iodomethane
methane, iodo
ICH3
WLN: I1
METHYL IODIDE (CH3I)
Methyl iodide (ACGIH:OSHA)
CHEMBL115849
DTXCID804187
Iodomethane, ampule of 100 mg
NSC9366
BCP26570
BBL034228
Iodomethane, for synthesis, 99.0%
STL281179
AKOS009031541
Methyl iodide [UN2644] [Poison]
UN 2644
Iodomethane, purum, >=99.0% (GC)
Iodomethane contains copper as stabilizer
BP-11384
Iodomethane, SAJ first grade, >=93.0%
Iodomethane, SAJ special grade, >=99.5%
I0060
NS00001340
C18448
Iodomethane, puriss., redist., >=99.5% (GC)
Q421729
F2190-0170
Iodomethane, contains copper as stabilizer, ReagentPlus(R), 99%
Iodomethane, contains copper as stabilizer, ReagentPlus(R), 99.5%
Iodomethane, 2000 mug/mL in methanol: water (4:1), analytical standard
Iodomethane, 2M soln. in tert-butyl methyl ether (stabilized with Cu)
200-819-5