Dictionary![]() ![]() sul•fo•natePronunciation: (sul'fu-nāt"), [key] —n., v., -nat•ed, -nat•ing. Chem. —n. an ester or salt derived from a sulfonic acid. —v.t. 1. to make into a sulfonic acid, as by treating an aromatic hydrocarbon with concentrated sulfuric acid. 2. to introduce the sulfonic group into (an organic compound). Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.
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