SULFONATE is validvalid

[v SULFONATED, SULFONATES, SULFONATING] : SULFONATION [n]

115,765 of 196,601 in NWL2023·also valid in CSW24

a salt of sulphonic acid [n -S] / to convert into sulphonic acid, also SULPHONATE [v SULFONATED, SULFONATING, SULFONATES]