What is "sulfonate"

alt. (context American spelling chemistry English) Any salt or ester of a sulfonic acid. n. (context American spelling chemistry English) Any salt or ester of a sulfonic acid. vb. To treat or react with a sulfonic acid, or to introduce such a group into a compound.

n. a salt of sulphonic acid

A sulfonate is a salt or ester of a sulfonic acid. It contains the functional group R-SO.