19.12 Sulfonic Acids

UIS: CHE 269 (Morsch and Andrews) · LibreTexts

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    From LibreTexts, under CC BY-NC-SA 4.0, as the source states it; its equations are written in TeX, which the PDF shows typeset. This page at LibreTexts.

    Sulfonic acids are similar to carboxylic acids and have the general structure of RSO3H. Sulfonic acids are very strong acids (pKa ~ -7). The most common sulfonic acid is p-toluenesulfonic acid.

    The conjugate bases of sulfonic acids are called sulfonate anions and are resonance stabilized. Consequently, sulfonate anions make good leaving groups.

    The sulfonate anion has three major resonance structures.

    This page titled 19.12 Sulfonic Acids was last modified on Mon, 03 Jun 2019 04:01:59 GMT and is shared under a CC BY-NC-SA 4.0 license and was authored, remixed, and/or curated by Layne Morsch.