Chemistry experiment 49 - Whistling Test Tube: reaction between sulfur and iron

Some steel wool is put in a test tube containing a small quantity of sulfur. As the test tube is heated, the following reaction will occur:
Fe + S → FeS
During the heating, a loud whistle can be heard. This is a physical phenomenon known as a thermoacoustic engine or a Rijke tube. The whistle is produced by ascending air inside the tube.
Safety:
- During heating, toxic sulfur vapors may escape and ignite.

[@aj__2205]

THANK YOU VERY MUCH I TRIED THIS AT MY EXHIBITION AND TURNED OUT VERY WELL :-)

[@tomandjerry8709]

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[@princessxi19]

science homework saved!!

[@YourMom-sv3kv]

This is perfect for a horror movie..

[@paulwright2717]

Wow

[@erdemc8811]

İyiymiş

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Bune olum

[@eunaekim9216]

After seeing the thumbnail, I thought this would be a reaction involving liquid bromine!

[@paulsahid7862]

Cool

[@MzRina88]

cool!