Halogens oxyacids

Fig. 1 Schematic diagram of a chromatogram of halogen acids and halogen oxyacids Chloride (1), chlorate (2), perchlorate (3), bromide (4), bromate (5), iodide (6), iodate (7).

F. SOLYMOSI, Structure and Stability of Salts of the Halogen Oxyacids in the Solid Phase, Wiley, UK, 1978, 468 pp. 

The halogens, except fluorine, can be oxidized to positive oxidation states. Most commonly you will encounter these positive oxidation states in a set of compounds called halogen oxyacids and their ions. 

A comprehensive and detailed review of the literature relating to the decomposition reactions of the salts of halogen oxyacids has recently been given by Solymosi [1279], This book discusses many aspects of the chemical characteristics of this group of compounds. It includes a large amount of kinetic data and provides access to the original publications. 

Halogen lamp la 22 Halogen oxyacids la 188,189 Haloperidol lb 268,354 Harmalin lb 188 Harpagophytum alkaloids lb 243 Harpagoside lb 243 Hecogenine la 71... 

With the exception of perchloric acid, the halogen oxyacids are reduced through the corresponding halogen elements to the hydracids in the case of iodic acid3 the formation of free iodine after a definite interval forms a striking example of a time reaction. 4 The formation of the element is not observed until after the disappearance of the whole of the sulphite. The mechanism of the reaction is probably as follows ... 

The oxidation of arsine may be accomplished by means of the halogen oxyacids and their salts,8 although not so readily as with the halogens themselves. Hypochlorites and hypobromites cause complete oxidation to arsenic acid, but side reactions are liable to occur, especially if the gas is present in excess. Chloric add slowly oxidises arsine to arsenious acid a trace of silver nitrate catalyses the reaction. Chlorates are quite inactive. More complete oxidation results with solutions of bromic acid and bromates, iodic acid and iodates, especially in the presence of catalysts. The reactions are of the type represented by the equation8... 

A comprehensive review of the pre-1976 literature on the decompositions of the salts of halogen oxyacids has been provided by Solymosi [1]. Another important review (1974) by Stem [2] is concerned with the high temperature properties of oxyhalides. 

Halogen oxyacids [1] e.g. chlorate, ehlorite, perehlorate, ------bromate, bromite, iodate--... 

Aniline phthalate for reducing sugars and anions of halogen oxyacids. 

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