A non-ionic surfactant is usually used with an anionic surfactant because it is not charged. Non-ionic surfactants have the advantage that they do not interact with calcium and magnesium ions in hard water
Ethoxylates are the main non-ionic surfactants
. It is prepared by condensation of long-chain alcohols with ethylene oxide (ethylene oxide) to form ether. Non-ionic surfactants account for nearly 50% of surfactant production (excluding soap
Long-chain alcohols can be natural or synthetic.
do not contain ionic groups, so their hydrophilic components do not contain ionic groups. Non-ionic surfactants are hydropshilic through the presence of multiple oxygen atoms in a portion of the molecule that form hydrogen bonds with the water molecules.
Increasing the temperature of the surfactant solution will cause the hydrogen bond to break gradually, and then the surfactant is separated from the solution. This is the characteristic of a non-ionic surfactant, a time point of turbidity Non-ionic surfactants are better than anions with similar concentrations. It also makes better emulsifiers. Non-ionic surfactants produce less foam because of their poor solubility. They also effectively remove oil and organic dirt. Fabric detergents (powder and liquid)and hard surface cleaners have non-ionic surfactants, It is also added to many industrial processes such as emulsion polymerization and agro-chemical formulations. Non-ionic surfactants are useful in countries where hot water supplies are scarce and in developed countries where washing temperatures need to be lowered to save energy or because of the type of fabric Non-ionic surfactants act in cold solutions.