Trithionate
# Trithionate

Trithionate is an oxyanion of sulfur with the chemical formula S $_3O^{2−}$ $_6.$ It is the conjugate base of trithionic acid. Dilute sodium hydroxide hydrolyzes S $_4N$ $_4$ as follows, yielding sodium thiosulfate and sodium trithionate:

2 S $_4N$ $_4$ + 6 NaOH + 9 H $_2O$ → Na $_2S$ $_2O$ $_3$ + 2 Na $_2S$ $_3O$ $_6$ + 8 NH $_3$

Certain sulfate-reducing bacteria have been known to use the compound in respiration.

