Potassium dithioferrate

Potassium dithioferrate(III) can be prepared by direct combination of iron, sulfur, and potassium carbonate at a temperature above that of the melting point of the carbonate.1 This compound is also made by the heating of potassium thiocyanate and iron(III) oxide at a temperature above 400°, with iron(II) sulfide as a side product.2 The former process has the advantage of separating the insoluble product from a soluble side product. 

Potassium trithiodiferrate(II), K2Fe2S3, formation of, from potassium dithioferrate(III), 6 171... 

Sodium trihydroxothioferrate(II), Na3FeS(OH)s, formation of, in preparation of potassium dithioferrate(III), 6 170 Sodium trimetaphosphimates, 6 80 Na3(P02NH)3, 1-hydrate, 6 99 4-hydrate, purification and acid hydrolysis of, for preparation of pentasodium diimidotri-phosphate, 6 105 Na3(P02NH)3-NaOH-7H20, 6 80 Sodium triphosphate (tripolyphosphate), 3 101 6-hydrate, 3 103... 

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