Overview
Ethyl iodide, or iodoethane, is an organic compound primarily used as an alkylating agent in chemical synthesis. It is a volatile, colorless to pale yellow liquid with a distinctive odor. Due to its reactivity, it is widely employed in pharmaceuticals and organic chemistry laboratories. First synthesized in the 19th century, ethyl iodide has become a staple in industrial and research settings. Its ability to transfer ethyl groups makes it valuable for creating complex molecules, particularly in drug development and specialty chemicals.
Physical and Chemical Properties
Ethyl iodide has a molecular weight of 155.97 g/mol and a density of 1.93 g/cm³. It boils at 72°C and melts at -108°C, making it a relatively volatile compound. The liquid is slightly soluble in water but mixes well with organic solvents like ethanol and diethyl ether. Chemically, ethyl iodide is highly reactive, particularly in nucleophilic substitution reactions. It decomposes when exposed to light, releasing iodine, which necessitates storage in dark, airtight containers. Its volatility and reactivity require careful handling in laboratory and industrial environments.
Main Applications
In organic synthesis, ethyl iodide is used to introduce ethyl groups into molecules, a process critical for producing pharmaceuticals, agrochemicals, and dyes. It serves as a key intermediate in the manufacture of ethyl derivatives of other compounds. The pharmaceutical industry relies on ethyl iodide for synthesizing active pharmaceutical ingredients (APIs). Additionally, it is used in research laboratories for methylation and ethylation reactions, contributing to advancements in medicinal chemistry and material science.
Safety and Storage
Ethyl iodide is toxic if inhaled or ingested and can cause severe skin and eye irritation. Proper personal protective equipment (PPE), including gloves and goggles, is essential when handling this chemical. It is also highly flammable, requiring storage away from open flames and heat sources. Storage conditions should include cool, dark environments in tightly sealed, light-resistant containers. Due to its sensitivity to moisture and light, it is often stabilized with copper wire or stored under inert gas to prevent decomposition.
B2B Procurement Guide
When procuring ethyl iodide, buyers should verify the purity grade (typically 98-99%) and request certificates of analysis from suppliers. Bulk purchases often come in amber glass bottles or specialized drums to prevent light degradation. Logistics should account for its hazardous nature, ensuring compliance with transportation regulations for flammable liquids. Comparing prices from multiple suppliers is advisable, as costs can vary based on quantity, purity, and geographic location.
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