CAS 7681-11-0 Potassium Iodide

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Potassium Iodide CAS 7681-11-0 Description:

• Product Name: Potassium Iodide
• Cas No: 7681-11-0
• EINECS No: 231-659-4
• Molecular Formula: KI
• Molecular Weight: 166
• Melting Point: 681 °C (lit.)
• Boiling Point: 184 °C(lit.)
• Density: 1.7 g/cm3
• Purity: 99%
• Appearance: White powder
• Package: according to the client’s requirement
• production Capacity: 1-1000 Metric Ton/Day

Physical properties:

Potassium Iodide CAS 7681-11-0 is a colorless or white cubic crystal. Odorless, with a strong bitter and salty taste. The melting point is 681°C and the boiling point is 1330°C. Soluble in water, soluble in ethanol, methanol, acetone, glycerol, and liquid ammonia, and slightly soluble in ether. Its aqueous solution is neutral or slightly alkaline.

Structure, preparation, and properties:

Potassium iodide is an ionic compound, K ⁺ I ⁻. This compound can be prepared industrially by reacting potassium hydroxide and iodine.

Organic chemistry:

KI is an iodine source in organic synthesis. A useful application is the preparation of iodoaromatics from aromatic diazonium salts. For example:

In addition, potassium iodide as a kind of iodine source can also be used as a catalyst in nucleophilic substitution reaction , thereby enhancing the activity of chlorinated hydrocarbons, brominated hydrocarbons, or mesylate as nucleophilic substitution substrates.

In addition, potassium iodide test paper can check for the presence of O3.

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