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Sodium ferrocyanide is the sodium salt of the coordination compound of formula [Fe(CN) 6] 4−. In its hydrous form, Na 4 Fe(CN) 6 · H 2 O (sodium ferrocyanide decahydrate), it is sometimes known as yellow prussiate of soda. It is a yellow crystalline solid that is soluble in water and insoluble in alcohol. The yellow color is the color of ...
Ferrocyanide is the name of the anion [Fe 6] 4−. Salts of this coordination complex give yellow solutions. It is usually available as the salt potassium ferrocyanide, which has the formula K 4 Fe(CN) 6. [Fe(CN) 6] 4− is a diamagnetic species, featuring low-spin iron(II) center in an octahedral ligand environment.
2 K 4 [Fe(CN) 6] + Cl 2 → 2 K 3 [Fe(CN) 6] + 2 KCl. This reaction can be used to remove potassium hexacyanidoferrate(II) from a solution. [citation needed] A famous reaction involves treatment with ferric salts, most commonly Iron(III) chloride, to give Prussian blue. In the reaction with Iron(III) chloride, producing Potassium chloride as a ...
Chloroplatinic acid – H 2 [PtCl 6] Chlorosulfonic acid – ClSO 3 H; Chlorosulfonyl isocyanate – ClSO 2 NCO; Chloryl fluoride – ClO 2 F; Chromium(II) chloride – CrCl 2; Chromium(III) chloride – CrCl 3; Chromyl chloride – CrO 2 Cl 2; Cisplatin (cis–platinum(II) chloride diamine) – [PtCl 2 (NH 3) 2] Cobalt(II) chloride – CoCl 2 ...
The [BAr F 4] − anion with four fluorinated aryl groups distributed tetrahedrally about a central boron atom. Tetrakis[3,5-bis(trifluoromethyl)phenyl]borate is an anion with chemical formula [{3,5-(CF 3) 2 C 6 H 3} 4 B] −, which is commonly abbreviated as [BAr F 4] −, indicating the presence of fluorinated aryl (Ar F) groups.
An example of a low-spin iron(III) complex is [Fe(CN) 6] 3−. The cyanide ligands may easily be detached in [Fe(CN) 6 ] 3− , and hence this complex is poisonous, unlike the iron(II) complex [Fe(CN) 6 ] 4− found in Prussian blue, [ 16 ] which does not release hydrogen cyanide except when dilute acids are added. [ 17 ]
Nitric acid is a source of nitric oxide complexes, although the details are obscure. Probably relevant is the conventional self-dehydration of nitric acid: 2 HNO 3 → NO 2 + NO 3 − + H 2 O. Nitric acid is used in some preparations of nitroprusside from ferrocyanide: HNO 3 + [Fe(CN) 6] 4-→ [Fe(CN) 5 (NO)] 2-+ OH − + OCN −
In compounds, sodium is usually ionically bonded to water and anions and is viewed as a hard Lewis acid. [8] Two equivalent images of the chemical structure of sodium stearate, a typical soap. Most soaps are sodium salts of fatty acids. Sodium soaps have a higher melting temperature (and seem "harder") than potassium soaps. [7]