Abstract

[14293-70-0] K2NO7S2 (MW 268.35) InChI = 1S/2K.H2NO7S2/c;;2-1(9(3,4)5)10(6,7)8/h;;(H,3,4,5)(H,6,7,8)/q2*+1;/p-2 InChIKey = IHSLHAZEJBXKMN-UHFFFAOYSA-L (oxidizing reagent for synthesis of quinones from phenols,2 naphthols,9 and anilines;18 oxidant for conversion of benzylic alcohols to aldehydes or ketones30 and amino acids to α-keto acids;31 preparation of heterocyclic quinones;20-22 oxidative aromatization29) Alternate Name: Fremy's salt. Solubility: sol H2O. Form Supplied in: orange powder; widely available. Preparative Methods: see Zimmer et al.1 Handling, Storage, and Precautions: in solid form, this reagent is rather unstable. It sometimes undergoes spontaneous decomposition which occasionally results in a violent explosion attributed to impurities such as chloride ion, manganese dioxide, or nitrite ion. Stored in a desiccator over calcium oxide in the presence of ammonium carbonate to provide an ammoniacal atmosphere, it is stable for several months.

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