What happens when we heat Titanium nitride in the open air upto to temperature of 280degree celsius-300degree celsius ?

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M. Reza Zamani Kouhpanji

it starts reacting with the oxygen in the air.

Akeshwar Singh Yadav

TiN is a very stable compound (i.e. very low Gibb's free energy). It will not react with oxygen (or air) even above 500C. Above that it starts to form TiO2.

Raghav Upadhyay

Thank you kenneth sir for your valuable feedback,it means a lot.

Thankyou akeshwar singh ji for your valuable feedback.

Walter Lengauer

There should not occur any reaction with air at such temperatures if the TiN sample is compact or a dense film. With very fine powders, less than 1µm grain size, it could, however, take up some oxygen. The problem is often the moisture. Even at room temperature TiN powder reacts with water. You can smell ammonia if you open a bottle containing TiN which was exposed to ambient air. The ammonia stems from hydrolysis of TiN.