perchlorate


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perchlorate:

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

Chloric acid, HClO3·7H2
..... Click the link for more information.
.
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The following article is from The Great Soviet Encyclopedia (1979). It might be outdated or ideologically biased.

Perchlorate

 

any salt of perchloric acid (HClO4). A perchlorate is colorless if its cation is colorless. Perchlorates dissolve freely in water, except potassium perchlorate (KCIO4), whose slight solubility is only 1.3 g per 100 g H2 O at 25°C. They are stable when heated to temperatures between 300° and 600°C; at higher temperatures they decompose and release oxygen, as in the reaction KCIO4 = KCl + 2O2. Among the methods for obtaining perchlorates are heating of chlorates and electrolysis of chlorate solutions. Perchlorates are used to make safety explosives; for example, KCIO4 is a stronger oxidizing agent than potassium chlorate (KCIO3) and is suitable for storage, since it does not explode upon friction or impact.

The Great Soviet Encyclopedia, 3rd Edition (1970-1979). © 2010 The Gale Group, Inc. All rights reserved.

perchlorate

[pər′klȯr‚āt]
(inorganic chemistry)
A salt of perchloric acid containing the ClO4- radical; for example, potassium perchlorate, KClO4.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
References in periodicals archive ?
In order to see the effects of salt variation on the electrical and mechanical properties of the structural supercapacitor, three salts (lithium perchlorate, potassium perchlorate, and zinc chloride) were used.
While this suggests heating of perchlorate destroyed organic compounds and formed this molecule, there is no sure way to confirm this idea.
Perchlorate is known to reduce absorption of iodine from the blood into the thyroid, where iodine is needed to make the thyroid hormone, T4.
"The Food and Drug Administration apparently didn't realize at the time how much perchlorate food can pick up as it rubs against the plastic," says Maffini.
Linear mixed-effects models (Proc Mixed in SAS) were used to evaluate associations of one time-point perchlorate, thiocyanate, and nitrate measures with repeated outcome anthropometric measurements (height, waist circumference, weight, and BMI) measured during 3-13 visits.
The case example of perchlorate, a rocket fuel component, attests to the pervasiveness of military chemical waste.
The statement also noted that iodine deficiency "increases vulnerability to the effects of certain environmental pollutants, such as nitrate, thiocyanate, and perchlorate."
EAST BROOKFIELD -- Town officials are breathing a sigh of relief after the latest test of the town's water supply revealed a significantly reduced level of the contaminant perchlorate, making it almost undetectable.
Perchlorate salts are commonly used in rocket propellants, as well as in fireworks, fertilizers and in the electroplating industry.
Environmental Protection Agency is developing standards for perchlorate in drinking water.
In particular, Part I looks at: (1) the challenges of regulating lead, a contaminant that is governed by the Safe Drinking Water Act (SDWA); (2) the health effects of perchlorate, a contaminant not currently regulated by the SDWA; and (3) the particular problems that simultaneous exposure to multiple contaminants can pose, when it is not clear which contaminants are causing what harm.