The Collaborative International Dictionary
Sulphurating
Sulphurate \Sul"phu*rate\, v. t. [imp. & p. p. Sulphurated; p. pr. & vb. n. Sulphurating.] (Chem.) To sulphurize. [Archaic]
Wiktionary
sulphurating
vb. (present participle of sulphurate English)