Question

What is the use of common salt in soap industry

Answer 1

it is used in saponification reaction

Answer 2

hiii dear ....

Common salt is mainly added to the neat soap after the saponification reaction when the soap is washed with NaCl or brine solution in order to separate glycerin. It is mainly added for precipitation to separate it from the aqueous solution. Salt is also used in order to separate "glycerol" from the water.