We use laundry detergent as a liquid or powder because powder and liquid detergents have more enzymes.
What is detergent?
When present in diluted solutions, a surfactant or combination of surfactants has the ability to clean.There are many different types of detergents; one popular family is the alkylbenzene sulfonates, which are soap-like substances that are more soluble in hard water because the polar sulfonate in detergents is less likely to bind to calcium and other ions found in hard water than the polar carboxylate in soap.
Detergents in both powder and liquid form contain additional enzymes and surfactants that break down grease and slime on clothing. Additionally, because the molecules of liquid and powder soaps can move more freely than those of solid bar soap, it is simpler for them to function as nonionic surfactants.
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