sodium thiosulfate

Found in Anh - Anh (Wordnet)

Definition Noun : A white crystalline compound (Na₂S₂O₃) used primarily as a fixing agent in photography : Sodium thiosulfate is an inorganic chemical that dissolves unexposed silver halides from photographic film or paper, making the image permanent. A chemical with applications in water treatment and medicine : It is also used to dechlorinate water and as an antidote for cyanide poisoning. Us...