Iridium target is a very precious metal material, which has a wide range of applications in electronics, semiconductors, aerospace and other fields. However, the service life of the iridium target is limited, and a large amount of waste iridium material will be produced after use, which will cause waste of resources and environmental pollution if it is not utilized. So, how to make the best use of waste iridium materials? In this article, we will introduce you to an efficient iridium target** method that allows you to easily convert used iridium material into high-purity iridium metal, thereby saving costs and protecting the environment.
What is the method of iridium target**? In fact, it is a chemical method, through the use of acid solution and reducing agent under certain conditions, the iridium in the waste iridium material is separated, and then through electrolysis or other physical methods, the purity is as high as 9999% iridium metal. The advantages of this method are high efficiency, high rate, simple operation, no need for complex equipment and processes, and it is environmentally friendly, and it is an environmentally friendly method.
What are the specific steps of iridium target**? Below, I will introduce it to you in detail:
In the first step, the waste iridium material is cut into small pieces, put into a glass beaker, add a sufficient amount of concentrated nitric acid, and heat to boiling to completely dissolve the iridium material. At this point, a yellow iridate, iR(NO3)6, is formed in the solution.
In the second step, the solution is cooled to room temperature and filtered with filter paper to remove impurities to obtain a clear iridate solution. Then, the solution is transferred to the electrolyzer, an appropriate amount of sulfuric acid is added, and the pH is adjusted to 1 2 as an anode solution.
In the third step, a piece of platinum metal is used as the anode and a piece of copper metal is used as the cathode, and the DC power supply is turned on for electrolysis. During electrolysis, the iridate in the anode solution is oxidized to iridium oxide, which is deposited on the anode, and the copper ions in the cathode are reduced to copper metal, which is deposited on the cathode. The electrolysis time depends on the weight of the iridium material and generally ranges from a few hours to a few days.
In the fourth step, after the electrolysis is completed, the anode is removed and rinsed with water to remove impurities on the surface to obtain a solid of iridium oxide. Then, the iridium oxide is put into a quartz crucible, an appropriate amount of hydrogen is added, and heated to 1000 to reduce the iridium oxide to iridium metal. At this time, a gray-white iridium metal block will be generated in the crucible, which is the iridium metal of **.
In the fifth step, the iridium metal block is taken out, rinsed with water, wiped with alcohol, weighed with an electronic balance, and the ** rate is calculated. In general, the ** rate can reach more than 90%, and the purity can reach 99More than 99%, in line with industrial standards. ** of iridium metal can be reused to make iridium targets or other purposes.
Through the above steps, you can successfully use waste iridium materials to obtain high-purity iridium metal, which not only saves resources, but also protects the environment, isn't it great? If you have waste iridium materials to need**, you might as well try this method, I believe you will have unexpected gains!