Boric acid (H₃BO₃) was locally heated in a test tube using infrared radiation to observe its dehydration behavior during heating.
Infrared irradiation causes water bound within the solid to separate and be released as liquid water, which subsequently turns into water vapor and migrates.
This video demonstrates that infrared local heating supplies energy to the interior of a solid, allowing internal reactions and dehydration to proceed even without reaching melting.
It serves as a suitable demonstration for understanding the characteristics of non-contact internal heating occurring in a short time.
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