Zirconium selection test

The zirconium selection test is an important experiment that can help us better understand the properties and uses of zirconium. In this article, we will provide a detailed introduction to the operating steps and precautions of the zirconium selection test.

Preparation before the experiment

Before conducting the zirconium selection test, we need to prepare the following materials and equipment:

1. Zirconium sample

2. Hydrofluoric acid

3. Nitric acid

4. Ammonium chloride

5. Ethanol

6. Hot Plate

7. Thermostatic bath

8. Centrifuge

9. Rotating evaporator

10. Electronic balance

2、 Operating steps for zirconium selection test

1. Place the zirconium sample in a hot plate and heat it to 500 ℃ for 2 hours to turn it into zirconia.

2. Soak zirconia in a mixture of hydrofluoric acid and nitric acid to turn it into a zirconia solution.

3. Add ammonium chloride to the zirconia solution to precipitate it.

4. Centrifuge the precipitate and wash it with ethanol.

5. Place the washed sediment into a rotary evaporator to evaporate the liquid.

6. Place the evaporated precipitate into a constant temperature bath, maintain a constant temperature, and allow it to crystallize.

7. Centrifuge the crystals and wash them with ethanol.

8. Place the washed crystal into a hot plate, heat it to 1000 ℃, and continue for 2 hours to turn it into zirconia.

9. Weigh zirconia using an electronic balance.

3、 Precautions

When conducting zirconium selection tests, it is necessary to pay attention to safety and avoid contact with toxic substances such as hydrofluoric acid and nitric acid.

In the experiment, it is necessary to strictly follow the operating steps to avoid errors.

When weighing, it is necessary to maintain the accuracy of the electronic balance to avoid errors.

4、 Conclusion

Through the zirconium selection test, we can obtain the purity and quality of zirconium, thereby understanding its properties and uses. In addition, the zirconium selection test can also provide important reference basis for the production and application of zirconium.

In summary, the zirconium selection experiment is an important experiment, which has significant implications for the research and application of zirconium. When conducting experiments, it is necessary to pay attention to safety, strictly follow the operating procedures, and maintain accuracy to obtain accurate results.