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Complex Carbonates of Iron(III)
Author(s) -
Sengupta A. K.,
Nandi A. K.
Publication year - 1974
Publication title -
zeitschrift für anorganische und allgemeine chemie
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.354
H-Index - 66
eISSN - 1521-3749
pISSN - 0044-2313
DOI - 10.1002/zaac.19744030312
Subject(s) - thermogravimetry , chemistry , absorbance , nuclear chemistry , infrared spectroscopy , inorganic chemistry , infrared , analytical chemistry (journal) , organic chemistry , physics , chromatography , optics
The complex carbonates of iron(III) are shown to be anionic in nature. The solutions containing these complexes show a maximum absorbance at 460 nm. The complex carbonates of iron(III), viz., (i) K 6 [Fe 2 (OH) 2 (CO 3 ) 5 ] · H 2 O, — (ii) Na 2 [Fe 3 O 2 (OH) 3 (CO 3 ) 2 ], — (iii) K[Co(NH 3 ) 6 ] 2 [Fe 3 (OH) 4 (CO 3 ) 6 ], — (iv) K 5 [Co(NH 3 ) 6 ] 3 [Fe 3 (OH) 4 (CO 3 ) 6 ] 2 , — (v) K[Co(NH 3 ) 6 ][Fe 2 (OH) 4 (CO 3 ) 3 ], and (vi) NH 4 [Co(NH 3 ) 6 ][Fe 2 (OH) 4 (CO 3 ) 3 ] are isolated and studied by thermogravimetry. The infrared spectra of these compounds are recorded and probable band assignments made. Besides, the reaction between KHCO 3 and Fe(NO 3 ) 3 was studied through chemical and physicochemical methods.