What is saponification in soap making? - A Plus Topper
Jun 01, 2017·The history of soap manufacturing. In the past, soap was made by mixing animal fats with alkaline wood ashes. Large-scale commercial soap making occurred in 1791 when a French chemist, Nicholas Leblanc patented a process for making soda ash or sodium carbonate from common salt. The process yielded large quantities of quality soda ash.