25th November 2019

stevespanglerscience
16

Why does Ivory soap expand when you put it in the microwave?

Those air bubbles in the soap (or in the popcorn kernels or marshmallow) contain water molecules. Water is also caught up in the matrix of the soap itself. The expanding effect is caused when the water is heated by the microwave. The water vaporizes and the heat causes the trapped air to expand.

Hereof, is it safe to put soap in the microwave?

Watch as a special brand of Ivory soap is put in a microwave and nuked for a minute or so. The soap heats up, softening, and heating the water and air inside it. The soap is now brittle and flaky but it is still soap, putting it in the microwave causes a physical change but there was no chemical reaction.

What does Ivory soap do?

Ingredients. The Ivory soap bar (classic) contained: sodium tallowate, sodium cocoate or sodium palm kernelate, water, sodium chloride, sodium silicate, magnesium sulfate, and fragrance. The soap bar had a determined pH value: 9.5.

Why does Ivory Soap float on water?

If anyone is curious about why Ivory soap floats, the soap is produced in such a way as to ensure air is whipped into the soap mixture before it sets; as a result, the final product contains numerous tiny air bubbles which work together to make the soap ever so slightly less dense than water, allowing it to float.
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