If the soap has high alkali content it irritates the skin.
Question:

If the soap has high alkali content it irritates the skin. How can the amount of excess alkali be determined? What can be the source of excess alkali?

Solution:

Excess of alkali can be found out using acid-base titration.

The alkali that is formed during the hydrolyses of oil during soap preparation may be a cause of excess alkali in the soap.

Administrator

Leave a comment

Please enter comment.
Please enter your name.