Nickel iodide, with the CAS number 13462 - 90 - 3, is a chemical compound that has gained significant attention in various industries. This high - quality nickel iodide is presented at the best price, making it an economical choice for users.
Fórmula química: NiI₂
Peso molecular: Approximately 312.50 g/mol
Aparência: It usually appears as black crystals or a dark brown powder. The physical state can vary slightly depending on factors such as purity and synthesis conditions.
Solubilidade: Nickel iodide is soluble in water, alcohol, and ether. This solubility characteristic allows it to be used in a wide range of chemical reactions and processes.
Nickel iodide has a variety of important uses in different fields.
In the field of organic synthesis, it serves as a catalyst. Catalysts play a crucial role in accelerating chemical reactions without being consumed in the process. Nickel iodide can facilitate many types of reactions, such as cross - coupling reactions, which are used to form carbon - carbon bonds. These reactions are fundamental in the synthesis of complex organic molecules, including pharmaceuticals, agrochemicals, and advanced materials.
It is also used in the electroplating industry. Electroplating is a process of depositing a thin layer of metal onto a substrate. Nickel iodide can be used as a source of nickel ions in electroplating baths. The deposited nickel layer can provide corrosion resistance, wear resistance, and a decorative finish to various objects, such as jewelry, automotive parts, and electronic components.
When using nickel iodide, proper safety precautions should be taken. Always wear appropriate personal protective equipment (PPE), such as gloves, goggles, and a lab coat, to avoid direct contact with the compound.
For its use as a catalyst in organic synthesis, first, prepare the reaction mixture in a suitable reaction vessel. Add the appropriate amount of nickel iodide to the reaction mixture. The amount of nickel iodide depends on the specific reaction and the scale of the synthesis. Stir the reaction mixture thoroughly to ensure uniform distribution of the catalyst. Then, heat the reaction mixture to the appropriate temperature and maintain the reaction conditions for the required time.
In the electroplating process, dissolve the nickel iodide in a suitable electrolyte solution to form a plating bath. The concentration of nickel iodide in the bath needs to be carefully controlled according to the requirements of the electroplating process. Immerse the object to be plated (the substrate) and the anode in the plating bath. Apply an appropriate electrical current to the bath, and the nickel ions from the nickel iodide will be reduced and deposited onto the substrate.
Caso 1: Síntese farmacêutica
A pharmaceutical company was synthesizing a new drug molecule. They needed to perform a cross - coupling reaction to form a specific carbon - carbon bond in the molecule. By using nickel iodide as a catalyst, the reaction rate was significantly increased. The yield of the desired product was also improved compared to using other catalysts. The reaction was carried out in a solvent mixture of toluene and ethanol at a temperature of 80°C for 12 hours. With the optimal amount of nickel iodide, the final product was obtained with a high purity of over 95%, which met the strict quality requirements for pharmaceutical production.
Case 2: Electroplating of Jewelry
A jewelry manufacturer wanted to provide a nickel - plated finish to their silver jewelry items to enhance their durability and appearance. They prepared an electroplating bath using nickel iodide. The concentration of nickel iodide in the bath was set at 20 g/L. The silver jewelry was used as the cathode, and a nickel anode was used. An electrical current of 1 A was applied to the bath for 30 minutes. After electroplating, the jewelry had a smooth and shiny nickel layer. The nickel - plated layer provided good corrosion resistance, and the jewelry maintained its excellent appearance even after long - term use.
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