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We usually dissolve the sodium hydroxide in water and then pour it into the grease. We all know that water and grease can't dissolve each other. We need to stir it enough to let the two systems reach a large degree of mixing. Promotes the binding of lipid molecules to sodium ions. This may be somewhat abstract. To put it simply, the agitation allows the grease to be more fully contacted with the aqueous sodium hydroxide solution, increasing their contact area and allowing the reaction to proceed more quickly and fully. If the agitation is insufficient, problems such as sponge cake often occur, which are caused by uneven reaction.
Then how should we stir it? I suggest that you try to use Meiyingpu electric mixer as much as possible. This is fast and effortless. It is more important than manual mixing. This is an important prerequisite for ensuring saponification. In addition, stir as much as possible in one direction to achieve a better mixing state.
Effect of electric mixer on saponification reaction
When we are making handmade soap, we can't stir it. Some oils with more saturated fatty acids can be stirred for a little shorter time, and those with more unsaturated fatty acids are hard to stir. Many people have broken their soaps. T, can only continue to stir. Here I would say that stirring is very necessary, and must be fully stirred, if it is not stirred, the saponification reaction will be greatly affected.
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