sulphonal (sulfonal)
The Century Dictionary and Cyclopedia · 1897 · p. 102
Diethyl sulph on-dimethyl-methane, (CH3)2C. (C2H5SO2)2, a hyp notic of considerable value. sulphonate (sulfō-nat), n. [ -ate1.] A salt of sulphonic acid. sulphonation (sul-fo-na's hon), n . [ sulpho nate + -ion.] The act of introducing into a compound, by substitution, the acid radical SO2OH.
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