Indium Chloride
Overview
Indium chloride (InCl3) is a crucial inorganic compound widely utilized in laboratory and industrial settings. As a hygroscopic crystalline solid, it plays a pivotal role in semiconductor manufacturing, organic synthesis, and as a catalyst in various chemical reactions. Its high reactivity with moisture necessitates careful handling and storage. Laboratory-grade indium chloride typically boasts a purity of 99.9% or higher, making it suitable for precision applications in research and development.
Physical and Chemical Properties
Indium chloride appears as a white to pale yellow crystalline powder with a molecular weight of 221.18 g/mol. It exhibits a density of 3.46 g/cm³ and melts at 586°C, subliming at approximately 800°C. The compound is highly soluble in water, ethanol, and ether, and its hygroscopic nature means it readily absorbs moisture from the air, forming hydrochloric acid. This property underscores the importance of proper storage in airtight containers under dry conditions.
Main Applications
In the semiconductor industry, indium chloride serves as a precursor for indium-based compounds used in thin-film transistors and photovoltaic cells. Its role in organic synthesis includes acting as a Lewis acid catalyst for Friedel-Crafts reactions and other transformations. Additionally, it finds use in electrochemical studies and as a starting material for producing other indium compounds. The compound's versatility makes it indispensable in both research and large-scale industrial processes.
Safety and Storage
Indium chloride is corrosive and can cause severe irritation to skin, eyes, and respiratory tract. Proper personal protective equipment (PPE), including gloves and goggles, is essential during handling. A fume hood should be used to prevent inhalation of dust or fumes. Storage requires a cool, dry environment in tightly sealed containers to minimize exposure to moisture. Spills should be neutralized with a weak base, such as sodium bicarbonate, and cleaned up promptly to prevent damage to surfaces and equipment.
B2B Procurement Guide
When procuring indium chloride, prioritize suppliers with a proven track record in chemical distribution. Verify the compound's purity level (typically 99.9% or higher for laboratory use) through certificates of analysis. Packaging should be robust and moisture-proof, often with desiccants included. Bulk purchases may offer cost advantages but require assurances of consistent quality. Lead times can vary, so plan procurement in advance, especially for high-purity grades.
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