Sodium triphosphate, also known as sodium tripolyphosphate or tripolyphosphate, is an inorganic compound with the chemical formula Na5P3O10. It is the sodium salt of the polyphosphate penta-anion, which is the conjugate base of triphosphoric acid.

Hydrogen peroxide is a chemical compound composed of two hydrogen atoms and two oxygen atoms. Its chemical formula is H₂O₂.

Phosphoric acid is a mineral triacid. The first function is that of a strong acid, the second that of a weak acid, and the third that of a very weak acid. The three bases formed are dihydrogen phosphate (H2PO4-), hydrogen phosphate (HPO4^2-), and orthophosphate (PO4^3-)

Sodium hydrosulfite or sodium dithionite (Na2S2O4) is a white powder with a very slight sulfur odor. Although stable under most conditions, it decomposes in hot water or an acidic solution.