Daffodil International University

Faculty of Engineering => Textile Engineering => Topic started by: Tanvir Ahmed Chowdhury on January 12, 2017, 03:01:03 PM

Title: Soaps
Post by: Tanvir Ahmed Chowdhury on January 12, 2017, 03:01:03 PM

Soaps are sodium or potassium salts of higher fatty acids (are organic acids that have more than 16 carbon atoms in their molecules) like stearic, palmitic and oleic acids. Soap is a metallic salt of saturated (CnH2n+1COOH) or unsaturated (CnH2n-1COOH) higher fatty acid. There may be Pb, Mg, Ca or other metallic salts. The sodium soaps are called hard soaps and the potassium soaps are known as soft soaps. Soaps are obtained from oils and fats. For example, tri-stearin is got from beef and mutton tallow, tri-palmitin from palm oil and tri-olein from lard (pig fat), olive oil and cotton seed oil.

Title: Re: Soaps
Post by: shalauddin.ns on January 17, 2017, 09:09:18 AM

In our every day, we are using soaps. Thanks for your post.