![If soap has high alkali content it irritates skin. HOW can the amount of excess alkali be determined? What can be the source of excess alkali? If soap has high alkali content it irritates skin. HOW can the amount of excess alkali be determined? What can be the source of excess alkali?](https://search-static.byjusweb.com/question-images/byjus/infinitestudent-images/ckeditor_assets/pictures/155258/content_2.gif)
If soap has high alkali content it irritates skin. HOW can the amount of excess alkali be determined? What can be the source of excess alkali?
Sugar & Spice - Cold process soap making is the act of mixing fixed oils (acid) and lye (alkali). The result of mixing these 2 ingredient is a chemical process called saponification,
![The pH range of the skin, syndet and soap, respectively [3,15,24,37,44,46]. | Download Scientific Diagram The pH range of the skin, syndet and soap, respectively [3,15,24,37,44,46]. | Download Scientific Diagram](https://www.researchgate.net/publication/359394945/figure/fig2/AS:1139008222572545@1648572130145/The-pH-range-of-the-skin-syndet-and-soap-respectively-3-15-24-37-44-46.png)