INTRODUCTION
Iodomethane, also known as methyl iodide, is a colorless, non-flammable liquid with pungent, ethereal odor that darkens on exposure to light. It occurs naturally in oceans as a product of marine algae. The liquid is a versatile methylation reagent and methylates carbon, oxygen, sulfur, nitrogen, and phosphorous atoms in organic molecules.
Manufacture
The product is manufactured by Finkelstein reaction between methyl chloride and sodium iodide.
| Synonyms | Methyl Iodide |
| CAS no. | 74-88-4 |
| EINECS no. | 200-819-5 |
| Molecular formula | CH3I |
| Molecular weight | 141.94 |
| Structure |  |
Applications
| APIs | Benoxaprofen, an analgesic Ketoprofen, an anti-inflammatory Melitracen, an anti-depressant |
| Agrochemicals | Pesticide itself |
| Intermediates | N-Methylquinolinium iodide 6-Dimethylaminoquinolinium iodide 4-Chloro-2-methylthiopyrimidine Methyl-4-nitroanisole |
| Others | as reagent in analysis of pyridine used in microscopy for its high refractive index as fire extinguisher |
SPECIFICATIONS
| Test | Unit | Specification |
|---|---|---|
| Appearance | – | Clear, colorless liquid |
| Identification by GC | – | Retention time of the major peak in the chromatogram should correspond to that in the standard chromatogram |
| Miscibility | – | Miscible with alcohol, ether and hexane |
| Assay by GC | % | Min 99.0 |
STORAGE
Stored at ambient temperature.
PACKING
50 kg UN-approved SS drum.
REACH Status
Not registered yet.
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