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  • There are two methods

    There are two methods of producing soaps: the "hot" and "cold" processes. They are very similar, except in the hot process the mixture is heated on a hob, which is the one I used. When you drop the lye into the warm oil it starts an endothermic reaction. The pan suddenly goes from warm to very cold as heat is absorbed from the surrounds into the mixture to power the chemical reaction.


    อ่านต่อเพิ่มเติม โรงเรียนวัดอรุณรัตนคีรี

    สาระสำคัญ ไทรอยด์
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