Yardley soap in Sri Lanka is a popular detergent that is used to remove dirt and grease from skin, hair, or other surfaces.
Soaps are in the group of cleaners that result from the reaction between an alkaline substance such as sodium hydroxide or vegetable or animal acids or, more generally, fatty acids.
It is interesting to know that the sodium salts used in soap have a great effect in removing all types of fat stains from different surfaces.
Getting to know the general structure of soap.
Different detergents, especially soap, help a lot by reducing the surface tension of water to better penetration of water molecules on different surfaces, and ultimately increase the power of water to dissolve grease and dirt stains.
It can be said that all soaps have almost the same chemical structure.
These detergents consist of two parts, hydrophobic and hydrophilic.
The hydrophobic part of the soap includes a hydrocarbon chain, the length of which depends on the type of fat or oil used in the structure of this substance, and the hydrophilic part also includes the anionic part of the molecule.
The negative charge in the anionic part of the soap is neutralized with the help of cations such as potassium or sodium.
To prepare this substance, it is necessary that the triglycerides in fat or oils are next to a strong base such as sodium hydroxide.
It is necessary to know that three molecules of soap are produced from each molecule of glycerol.
Types of soaps based on the manufacturing method.
In general, there are different ways to prepare soap.
In this section, we will mention some examples of the manufacturing methods of this chemical substance.
The method of melting and pouring into the mold
The melting and pouring method is one of the simplest methods of making soap, which can be done at home using minimal equipment.
To prepare soap using this method, you can use a simple soap.
In the first step, it is necessary to melt the soap until it becomes completely liquid.
In the next step, add your desired color and ingredients such as plants, vegetable oils, etc. to the solution.
Then mix these ingredients well and then pour the ingredients into the mold.
Allow your soap to dry and harden in the mold.
