What is the function of adding sodium silicate in soap production?

Oil and sodium hydroxide are boiled and hydrolyzed into higher fatty acid sodium and glycerol, and the former is soap after processing and molding. You will understand when I tell you the process of making soap. When you say sodium silicate, you should mean caustic soda, which is sodium hydroxide. 1, saponification. Add/kloc-0.5 kg of clean water and 4-5 kg of caustic soda into the soap cooker. After the caustic soda is completely melted, add 50 kg of sludge, continue heating and keep stirring. After 30 minutes, all the sludge melted. At this time, continue to heat and stir with medium and small fire to fully saponify the sludge. The generated sodium fatty acid is the main component of soap. Due to the different quality of sludge, saponification time is also different. After the sludge is completely melted, determine the dosage of caustic soda according to the situation in the pot. If stratification occurs, it means that water has been separated (soap is separated from water). If the soap still sticks to the shovel after the shovel is lifted from the pot, it means that there is no "water separation" and a small amount of caustic soda water needs to be added. If you haven't "divided water" for 5 minutes, you can join again until there is "divided water". 2. salting out. In order to separate the impurities and sewage from the soap solution in the pot after water separation, 1.5 kg salt can be added and stirred to fully dissolve the salt. At this time, it will be more obvious to test the "water distribution" with a shovel. After salting out, continue heating for 5- 10 minutes, and then stop heating and stirring. Cover the pot with heat preservation material, let it stand for 3-5 hours and then take it out. When out of the pot, take out the upper soap solution and put it in an iron box containing soap, which is soap base. Glycerol can be extracted from the lower sewage. If the color of the soap base is poor, you can cook it 1-2 times as above. 4. Manufacture of finished products: firstly, add 20kg of clean water and 4kg of caustic soda into the pot. After the caustic soda melts, add 40 kg of soap base, 8 kg of animal oil and 2 kg of rosin, and continue to heat and stir. After all the materials in the pot are melted and saponified, see if they are "divided". If the water has not been "divided", you can add some caustic soda water appropriately until it is "divided". After the soap liquid is separated from water, stop heating and stirring, cover the pot with heat preservation material, let it stand for 10 hour and then take it out. When taking out the pan, take out the upper soap bubbles (which can be reused in the next processing), then take out the soap solution and put it in the iron box containing soap (if caking occurs, it is caused by the low temperature in the pan when it is kept warm and allowed to stand, so it can be reheated and melted, and then taken out of the pan after standing). At the same time, 4 kg of sodium silicate, 0.5 kg of soap essence and trace soap yellow were added. Stir while adding it until it is evenly mixed, and then cool and solidify. You got it? Give it to me,

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