Iridium (III) Chloride is an inorganic compound with CAS 10025-83-9 and molecular formula IrCl3. Dark green powder with a metallic luster. There are various uses in isotope production, including radioactive isotope production, nuclear magnetic resonance imaging, radiation dosimeters, radioactive tracers, and nuclear power generation. These applications demonstrate their importance and value in isotope production, and with the continuous development of science and technology, their application prospects are also very broad. It has various uses in the field of nuclear power generation, including fuel assembly manufacturing, fuel supplements, reactor control agents, radioactive isotope thermoelectric generators, and nuclear waste treatment. These applications demonstrate their importance and value in the field of nuclear power generation, and with the continuous development of science and technology, their application prospects are also very broad.
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The reduction iridium chloride method is a method for synthesizing Iridium (III) Chloride. The following are the detailed steps and chemical reaction formulas of this method:
1. Preparation of raw materials: Prepare an appropriate amount of iridium chloride, reducing agents (such as hydrogen, sodium borohydride, etc.), and appropriate solvents (such as water, alcohol, etc.) for hydrochloric acid. Iridium chloride is usually a solid or liquid, with a reducing agent of powder or gas and a solvent of liquid.
2. Dissolve iridium chloride: Dissolve iridium chloride in an appropriate solvent to form a uniform solution.
3. Add reducing agent: Add the reducing agent to a solution of iridium chloride, ensuring that the reducing agent fully contacts iridium chloride.
4. Reduction reaction: Under certain temperature and pressure conditions, the reducing agent reduces iridium (III) chloride to iridium (III) chloride. These 5 reactions can be chemical or electrochemical, depending on the reducing agent used and the reaction conditions.
6. Product separation: Separate the generated iridium trichloride from the reaction solution. Separation can be carried out using methods such as evaporation, crystallization, and filtration.
7. Purification: Purify the separated iridium trichloride to remove impurities. The purification methods can include recrystallization, sublimation, and other methods.
The chemical reaction formula for the reduction of iridium chloride is: 2IrCl3 + 3H2 → 6IrCl3 + 6HCl.
This reaction is a typical reduction reaction, in which the Ir (IV) ion in iridium chloride is reduced to Ir (III) ion by a reducing agent (such as hydrogen gas), while generating hydrochloric acid hydrogen chloride. During the reaction process, iridium chloride and reducing agent are used as reactants, and iridium trichloride is used as the product.
Through the above steps, Iridium (III) Chloride can be synthesized with a certain purity and yield. This method has the advantages of simple operation, mild reaction conditions, and high yield, so it is widely used in laboratories and industrial production. However, this method requires the use of reducing agents such as hydrogen, which may increase costs and safety risks for large-scale production. Therefore, in actual production, it is necessary to choose appropriate synthesis methods and conditions based on specific circumstances.
Chemical vapor deposition is a commonly used synthesis method that can be used to prepare various metal elements and compounds. The following will provide a detailed description of the steps and chemical reaction formulas for synthesizing Iridium (III) Chloride using chemical vapor deposition method.
1. Preparation of raw materials
The raw materials required for this experiment include iridium powder, stannous chloride (SnCl2), chlorine gas (Cl2), and hydrogen gas (H2).
2. Experimental equipment
The required equipment for the experiment includes a tube furnace, vacuum pump, flow meter, thermocouple, reactor, balance, mortar, and high-temperature gloves.
3. Experimental steps
3.1 Preparation of raw materials: Grind iridium powder into small particles, and prepare stannous chloride (SnCl2) and chlorine gas (Cl2) for later use.
3.2 Cleaning the reactor: Use a vacuum pump to extract the air from the reactor to avoid the influence of impurities during the experimental process.
3.3 Loading: Mix iridium powder and stannous chloride in a certain proportion and load them into the reactor.
3.3 Sealed reactor: Ensure that the reactor is well sealed to prevent gas leakage.
3.4 Vacuum pumping: Use a vacuum pump again to evacuate the air inside the reactor, leaving it in a negative pressure state.
3.5 Heating reactor: Place the reactor in a tube furnace and slowly heat it to a certain temperature (such as 800 ℃).
3.6 Gas introduction: During the heating process, slowly introduce chlorine and hydrogen gas, maintaining a certain gas flow rate and pressure.
3.7 Reaction time: Keep the reaction temperature and gas flow stable, and react for a certain time (such as 1 hour) to allow the iridium powder and stannous chloride to fully react.
3.8 Cooling: Stop heating and naturally cool the reactor to room temperature.
3.9 Post treatment: Open the reactor, remove the product, and grind it into powder using a mortar.
4. Chemical reaction formula
In the above experimental process, the main chemical reaction formula is: Ir + 3SnCl2 + 4Cl2 + 2H2 → IrCl3 + 6SnCl2 + 2HCl. This reaction formula represents the reaction of iridium powder and stannous chloride with chlorine and hydrogen gas at high temperature to generate Iridium (III) Chloride and by-products SnCl2 and HCl.
5、 Product purification
The obtained product is a mixture of Iridium (III) Chloride and by-products SnCl2 and HCl. In order to obtain high-purity Iridium (III) Chloride, subsequent purification treatment is required. Common purification methods include recrystallization and sublimation. The recrystallization method involves multiple dissolution and crystallization operations to remove impurities and obtain high-purity Iridium (III) Chloride. The sublimation method is to separate Iridium (III) Chloride from a mixture by heating and sublimation, resulting in a high-purity product.
Electrolysis is a commonly used method for preparing metal compounds, which reduces metal ions to elemental metals through electrolysis reactions. The following will provide a detailed description of the steps and chemical reaction formulas for synthesizing Iridium (III) Chloride using the electrolysis method.
1. Preparation of raw materials
The raw materials required for this experiment include iridium salt solution (such as K2IrCl6 solution), sodium chloride (NaCl), sodium hydroxide (NaOH), and deionized water.
2. Experimental equipment
The required equipment for the experiment includes an electrolytic cell, power supply, electrodes, electrolyte container, stirrer, drip funnel, thermometer, pH meter, etc.
3. Experimental steps
3.1 Preparation of electrolyte: Mix iridium salt solution and sodium chloride solution in a certain proportion, add an appropriate amount of sodium hydroxide solution, stir evenly, and obtain the electrolyte.
3.2 Electrolysis: Pour the electrolyte into the electrolytic cell, insert the electrode into the electrolyte, and connect the power supply for electrolysis. Control the magnitude of current and voltage, and observe the changes during the electrolysis process.
3.3 Product collection: After the electrolysis reaction is completed, turn off the power and remove the electrode. Filter out the precipitate from the electrolyte and rinse it with water to obtain the crude product of Iridium (III) Chloride.
3.4 Purification: The crude product is purified by recrystallization or sublimation to obtain high-purity Iridium (III) Chloride.
4. Chemical reaction formula
In the process of synthesizing Iridium (III) Chloride by electrolysis, the main chemical reaction formula is: IrCl3 + 3H2O → IrCl3(OH)3 + 3HCl. This reaction formula represents the hydrolysis reaction of iridium salts in water to produce IrCl3(OH)3 and HCl. During the electrolysis process, IrCl3(OH)3 loses hydroxyl groups and generates Iridium (III) Chloride and water.