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anionic detergentA detergent whose hydrophilic activity hinges on an anionic group. Fatty acids are natural anionic detergents (AD), but are neither used as detergents nor function as such in biological systems; the main synthetic ADs are aliphatic sulphate esters (e.g., sodium dodecyl sulphate).
A natural or synthetic chemical substance such as a soap, which does not ionize when placed in water..
See also: detergent
an·i·on·ic de·ter·gent(anī-onik dĕ-tĕrjĕnt)
Cleansing agent that carries a net negative charge on a lipidlike molecule and exerts a limited antibacterial effect (e.g,. a soap).
1. purifying, cleansing.
2. an agent that purifies or cleanses.
a substance which when dissolved contributes a hydrophobic ion which carries a negative charge to the solution. Soap is an example.
the dissociated substance produces a positively charged hydrophobic ion. The quarternary ammonium compounds are the best known examples. They are innocuous if properly diluted but the concentrates are very poisonous.
nonionic surface-acting detergent
e.g. the polyoxyethylenes are regarded as nonpoisonous.