Question

What happen when boric acid heated
with ethanol in a vapour is burnt

Answer 1

orthoboricd is formed.

I hope it will help you.

Answer 2

Answer:

Explanation:

It will no 1 reaction but go in stages when the temp go’s up.

At 170 °C it start to loose water vapor

H3BO3 → H2O + HBO2

HBO2 is also called Meta-boric Acid.

At 300 °C more water is split off

4 HBO2 → H2B4O7 + H2O

H2B4O7 is labeled Pyro-boric Acid.

When you go still higher in temp, like 750 to 800 ° C

even more water vapor is lost and it should decompose further into B2O3

B2O3 is boron trioxide or Di-boron trioxide.

But is hard to get this in a clean form.

In total you can write the reaction as: 2H3BO3 → B2O3 + 3H2O