Understanding Copper(I) Iodide Properties and Synthesis
Copper(I) Iodide (CuI), identified by CAS 7681-65-4, is a compound characterized by a distinct set of physical and chemical properties that dictate its utility in various applications. Understanding these properties and the methods of its synthesis is crucial for both researchers and industrial consumers. NINGBO INNO PHARMCHEM CO.,LTD. prioritizes the consistent production of high-purity CuI to meet demanding specifications.
Physically, Cuprous Iodide typically appears as a gray to brownish yellow powder. It is known for its low solubility in water and most organic solvents, although it can dissolve in specific complexing solutions like ammonia or potassium iodide. Its molecular formula is CuI, with a molecular weight of approximately 190.45 g/mol. The compound exhibits a cubic crystal structure, specifically the sphalerite structure.
Chemically, CuI is relatively stable under normal conditions but can be sensitive to air and moisture over prolonged periods. Its primary chemical significance lies in the reactivity of the copper(I) ion. The disproportionation of simple copper(I) ions in solution to copper(II) ions and elemental copper is a key consideration; however, forming insoluble precipitates like CuI or stable complexes effectively mitigates this issue, preserving the copper(I) state for its intended applications.
The synthesis of Cuprous Iodide can be achieved through several methods. A common route involves the reaction of copper(II) sulfate with excess potassium iodide. In this reaction, copper(II) ions oxidize iodide ions to iodine, while simultaneously being reduced to copper(I) iodide, which precipitates out of the solution. The balanced equation illustrating this transformation is:
2CuSO₄ + 4KI → 2CuI(s) + I₂(aq) + 2K₂SO₄
Other methods include reacting copper metal with iodine vapor or utilizing copper powder in alcoholic solutions of iodine. The choice of synthesis method often depends on the desired purity and scale of production.
Ensuring the purity of CuI is paramount, especially for catalytic applications in organic synthesis where impurities can inhibit reactions or lead to unwanted side products. NINGBO INNO PHARMCHEM CO.,LTD. employs rigorous quality control measures throughout its manufacturing processes to deliver CuI that meets international standards. When sourcing CuI, considering the assay (typically >99%) and the absence of critical impurities is essential for achieving reproducible results and optimal performance in your applications. Whether for purchase or for research, understanding the properties and synthesis of CuI provides a foundation for its effective utilization.
Physically, Cuprous Iodide typically appears as a gray to brownish yellow powder. It is known for its low solubility in water and most organic solvents, although it can dissolve in specific complexing solutions like ammonia or potassium iodide. Its molecular formula is CuI, with a molecular weight of approximately 190.45 g/mol. The compound exhibits a cubic crystal structure, specifically the sphalerite structure.
Chemically, CuI is relatively stable under normal conditions but can be sensitive to air and moisture over prolonged periods. Its primary chemical significance lies in the reactivity of the copper(I) ion. The disproportionation of simple copper(I) ions in solution to copper(II) ions and elemental copper is a key consideration; however, forming insoluble precipitates like CuI or stable complexes effectively mitigates this issue, preserving the copper(I) state for its intended applications.
The synthesis of Cuprous Iodide can be achieved through several methods. A common route involves the reaction of copper(II) sulfate with excess potassium iodide. In this reaction, copper(II) ions oxidize iodide ions to iodine, while simultaneously being reduced to copper(I) iodide, which precipitates out of the solution. The balanced equation illustrating this transformation is:
2CuSO₄ + 4KI → 2CuI(s) + I₂(aq) + 2K₂SO₄
Other methods include reacting copper metal with iodine vapor or utilizing copper powder in alcoholic solutions of iodine. The choice of synthesis method often depends on the desired purity and scale of production.
Ensuring the purity of CuI is paramount, especially for catalytic applications in organic synthesis where impurities can inhibit reactions or lead to unwanted side products. NINGBO INNO PHARMCHEM CO.,LTD. employs rigorous quality control measures throughout its manufacturing processes to deliver CuI that meets international standards. When sourcing CuI, considering the assay (typically >99%) and the absence of critical impurities is essential for achieving reproducible results and optimal performance in your applications. Whether for purchase or for research, understanding the properties and synthesis of CuI provides a foundation for its effective utilization.
Perspectives & Insights
Quantum Pioneer 24
“employs rigorous quality control measures throughout its manufacturing processes to deliver CuI that meets international standards.”
Bio Explorer X
“When sourcing CuI, considering the assay (typically >99%) and the absence of critical impurities is essential for achieving reproducible results and optimal performance in your applications.”
Nano Catalyst AI
“Whether for purchase or for research, understanding the properties and synthesis of CuI provides a foundation for its effective utilization.”