How does transparent soap come from?
The game of light makes transparent soaps the most beautiful among all the soaps! Transparent soaps consist of crystals that stop in their growth and sunlight can penetrate through the soap.
During saponification, each soap passes through the colloidal phase. Colloid is similar to gel, made up of larger molecules, but small enough to remain suspended in a liquid medium without deposition at the bottom. As soap cools, long fibrous crystals begin to develop. These crystals are increasing, they become more and more and more overlap. The light rays can no longer pass through the soap, the translucency (transparency) of the colloid condition disappears and the soap becomes mutant.
Transparent soap is made by a warm process. The procedure is quite the same as any other soap obtained by the hot process. The difference is only in one moment, and that is when the soap passes into the colloidal phase. All the soaps during the preparation pass through the colloidal phase, you just probably did not pay attention to it. This moment is crucial in making transparent soaps. At that point, solvents are added: alcohol, glycerol and aqueous solution of sugar. These solvents hold the soap mass in the colloid state and suppress the development of large crystals. Transparent soaps contain crystals but are so small that light waves can pass through the soap. Transparency is defined as the ability to read 14-point letters through the thickness of 0.25 inches (about 6 mm) soap.
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