S₁U₁L₁P₃H₄O₁N₁A₁T₁I₁N₁G₂

18 points

SULPHONATING is validvalid

SULPHONATE, to react with sulphuric acid [v]

175,599 of 196,601 in NWL2023·also valid in CSW24

SULPHONATE, to convert into sulphonic acid, also SULFONATE [v]

239,550 of 280,887 in CSW24·also valid in NWL2023