Question

Borosilicate glass do not expand much

on being heated​

Answer 1

With borosilicate glass, the addition of boric acid (H 3 BO 3) to the formulation results in a glass that has a low coefficient of thermal expansion, which means that when the glass is heated or cooled, it does not expand or contract very much. This dimensional stability is what enables borosilicate glass to be capable of withstanding rapid and extreme temperature changes without cracking.

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