17. How will you convert boric acid to boron nitride?
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The boron nitride can be prepared by using various types of boric compound such as the boric acid, boron trioxide are extremely important to find the exclusive value of boron nitride crystallinity and the rate of bio degradation.
The boron compounds as mentioned above are added in ammonia and then are transferred in a silicon boat to heat the compound extremely in ammonia atmosphere with a proper heating rate of 10°C/min at 1300°C for 1-4 hours.
At the temperature of 500°C or around it the silicon carbide boat is removed and boron nitride is peeled or scratched from the boat surface and are stored and controlled at room temperature.
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