Definition
Nonionic refers to substances that do not form ions (charged particles) when dissolved in water. Unlike ionic compounds like salt, nonionic compounds remain electrically neutral in solution. Think of it like Switzerland โ neutral. These substances are often used as surfactants, which help mix oil and water. An analogy? Oil and vinegar don't mix well until you add a nonionic emulsifier, like egg yolk in mayonnaise. ๐งช It's all about avoiding electric charge.