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Webster 1913 Edition

Noun.

[Pref.

anti-

chlor

ine.]

(Chem.)

Any substance (but especially sodium hyposulphite) used in removing the excess of chlorine left in paper pulp or stuffs after bleaching.

antichlor ‎(plural antichlors)

(chemistry) Any substance used to remove excess chlorine or hypochlorite from textiles etc after bleaching; typically sodium thiosulfite

any substance used to remove chlorine