Perchlorates and perchloric acid

The perchlorates of practically all the electropositive metals are known, except for a few cations having low charges. 

The most outstanding property of the perchlorates is their oxidising abiUty. On heating, these compounds decompose into chlorine, chlorides, and oxygen gas. Aqueous perchlorate solutions exhibit Httle or no oxidising power when dilute or cold. However, hot concentrated perchloric acid is a powerful oxidizer and whenever it contacts oxidizable matter extreme caution is required. The acidified concentrated solutions of perchlorate salts must also be handled with caution. Ammonium perchlorate [7790-98-9] (AP) is one of the most important perchlorates owing to its high (54.5%) O2 content and the 

Kirk-Othmer Encyclopedia of Chemical Technology (4th Edition) 

Chlorine Heptoxide. The anhydride of perchloric acid is chlorine heptoxide [10294 8-1/, also known as dichlorine heptoxide. It is 

The decomposes spontaneously on standing for a few days. The acid dehydration reaction requires a day for completion at —10°C and explosions 

Because of their differing strucmres, chemical reactions and applications, perchloric acid and 

On an industrial scale, perchlorates are now invariably produced by the electrolytic oxidation of NaClOs (see Panel, p. 867). Alternative routes have historical importance but are now only rarely used, even for small-scale laboratory syntheses. 

Oscillations, Waves and Chaos in Chemical Kinetics, Oxford Univ. Press, Oxford, 1994, 96 pp. 

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

SCHILT, Perchloric Acid and Perchlorates, Northern Illinois University Press, 1979, 189 pp. 

The Halogens Fluorine, Chlorine, Bromine, iodine and Astatine 

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Existing knowledge on perchloric acid and its salts was reviewed extensively in 1960 in a monograph including the chapters Perchloric Acid Alkali Metal, Ammonium and Alkaline Earth Perchlorates Miscellaneous Perchlorates Manufacture of Perchloric Acid and Perchlorates Analytical Chemistry of Perchlorates Perchlorates in Explosives and Propellants Miscellaneous Uses of Perchlorates Safety Considerations in Handling Perchlorates [1], There is a shorter earlier review, with a detailed treatment of the potentially catastrophic acetic anhydride-acetic acid-perchloric acid system. The violently explosive properties of methyl, ethyl and lower alkyl perchlorate esters, and the likelihood of their formation in alcohol-perchloric acid systems, are stressed. The instability of diazonium perchlorates, some when damp, is discussed [2],... 

Ion-specific electrodes -perchlorates PERCHLORIC ACID AND PERCHLORATES] (Vol 18)... 

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