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SOME METAL-CYANIDES COMPLEX IONS <br />IN ORDER OF DECREASING STABILITY IN WATER <br />NAME* <br />FORMULA <br />DISSOCIATION . <br />CONSTANT <br />HEXACYANOFERRATE (III) OR [FE(CN)6]"3 1 x 10'sz <br />FERRICYANIDE <br />HEXACYANOFERRATE (II) OR [FE(CN)s]~ 1 x 10~' <br />FERROCYANIDE <br />TETRACYANOMERCURATE (II) [HG(CN)4]"2 4 X 102 <br />TRICYANOCUPRATE (I) [CU(CN)3]"2 5 x 10"2s <br />TETRACYANONICKELATE (II) [NI(CN)d]"2 1 x 10"~ <br />DICYANOARGENTATE (I) [AG(CN)2]" 1 x 10'21 <br />TETRACYANOCADMINATE (II) [CD(CN)4]"2 1.4 X i0"" <br />TETRACYANOZINCATE (II) IZN(CN~]"2 1_S X 10"17 <br />'` THE ROMAN NUMERALS INDICATE THE OXIDATION STATE OF THE CENTRAL METAL ATOM. <br /> <br /> <br />y+/~I WtGVm Pfl <br />