Name Sodium thiosulfate
Synonyms Sodium hyposulfite; Sodium subsulfite
Molecular Formula Na2S2O3
Molecular Weight 158.10
CAS Registry Number 7772-98-7
EINECS 231-867-5
Properties
Density 1.667
Melting point 48 ºC
Boiling point 100 ºC
Application
analytical chemistry, the most important use comes from the fact that the thiosulphate anion reacts stoichiometrically with iodine, reducing it to iodide as it is oxidized to tetrathionate.
2.Sodium thiosulphate is one component of an alternative lixiviant to cyanide for extraction of gold.
3.Sodium thiosulfate is used as an ***** to cyanide poisoning.
