chloric acid


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chloric acid:

see chloratechlorate
and perchlorate
, salts of chloric acid, HClO3, and perchloric acid, HClO4, respectively. Chloric Acid and Its Salts

Chloric acid, HClO3·7H2
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.

Chloric Acid

 

HClO3, a strong monobasic acid, in which chlorine is in the + 5 oxidation state. Chloric acid, which has not been obtained in pure form, is rather stable in cold aqueous solutions at concentrations below 30 percent. More concentrated solutions decompose: 8HClO3 = 4HClO4 + 3O2 + 2Cl2 + 2H2O. Chloric acid is a strong oxidizing agent, and its oxidizing strength increases with increasing concentration and temperature. For example, filter paper ignites in a 40-percent solution of the acid. Chloric acid is obtained as a result of the decomposition of hypo-chlorous acid, in the electrolysis of chloride solutions, and, under laboratory conditions, in the reaction of barium chlorate with dilute sulfuric acid: Ba(ClO3)2 + H2SO4 = BaSO4 + 2HClO3.

Chlorate salts correspond to chloric acid; the most important are sodium chlorate, potassium chlorate, calcium chlorate, and magnesium chlorate.

REFERENCES

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chloric acid

[′klȯr·ik ′as·əd]
(inorganic chemistry)
HClO3 A compound that exists only in solution and as chlorate salts; breaks down at 40°C.
References in periodicals archive ?
In this study, we tested three digestion methods on 200 urine samples from patients hospitalized at the La Timone University Hospital: the conventional chloric acid method (1); an acid ammonium persulfate method (3, 4); and a method involving a HN[O.
Chloric acid was not available commercially and this powerful (and dangerous) oxidant had to be made in the laboratory.
We investigated several conditions to improve the previously described method (10), including use of ammonium persulfate in place of the more toxic chloric acid, a longer time for color development, and smaller sample volumes.
For this purpose, samples were subjected to wet acidic degradation in a chloric acid or mixed with sulfuric and nitric acid (in the ratio 100:1) and analyzed under established procedures (25).
Conventional chloric acid digestion method in a test tube.