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In coordination chemistry, a stability constant (also called formation constant or binding constant) is an equilibrium constant for the formation of a complex in solution. It is a measure of the strength of the interaction between the reagents that come together to form the complex. There are two main kinds of complex: compounds formed by the ...
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 ]
Thiocyanate complexes are not widely used commercially. Possibly the oldest application of thiocyanate complexes was the use of thiocyanate as a test for ferric ions in aqueous solution. [14] The reverse was also used: testing for the presence of thiocyanate by the addition of ferric salts. The 1:1 complex of thiocyanate and iron is deeply red.
Within chemistry, a Job plot, otherwise known as the method of continuous variation or Job's method, is a method used in analytical chemistry to determine the stoichiometry of a binding event. The method is named after Paul Job and is also used in instrumental analysis and advanced chemical equilibrium texts and research articles.
Thiocyanate [6] is known to be an important part in the biosynthesis of hypothiocyanite by a lactoperoxidase. [7] [8] [9] Thus the complete absence of thiocyanate or reduced thiocyanate [10] in the human body, (e.g., cystic fibrosis) is damaging to the human host defense system.
This is a list of unsolved problems in chemistry. Problems in chemistry are considered unsolved when an expert in the field considers it unsolved or when several experts in the field disagree about a solution to a problem.
"Give women the information to make the best decisions for themselves." This story was produced by Northwell Health and reviewed and distributed by Stacker. Show comments. Advertisement.
For example, it will react with diluted sulfuric acid under heating forming potassium sulfate, ferric sulfate and hydrogen cyanide. 2 K 3 [Fe(CN) 6] + 6 H 2 SO 4 → 3 K 2 SO 4 + Fe 2 (SO 4) 3 + 12 HCN. This won't occour with concentrated sulfuric acid as hydrolysis to formic acid and dehydration to carbon monoxide will take place instead. [17]
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