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.
.

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.

perchlorate

[pər′klȯr‚āt]
(inorganic chemistry)
A salt of perchloric acid containing the ClO4- radical; for example, potassium perchlorate, KClO4.
References in periodicals archive ?
Six controlled clinical studies have investigated thyroid effects following oral exposures to perchlorate [see Supplemental Material, Section B and Table S1, available online (doi:10.
For parents concerned with the perchlorate levels in their drinking water supply, FDA recommends reconstituting infant formula with bottled water or water from a home treatment device certified for perchlorate removal.
Perchlorate is used as a solid propellant in rockets, missiles, fireworks and explosives.
But any influence the Perchlorate Study Group may have remains difficult to determine.
They put the powder in water, pumped in hydrogen gas, and then added perchlorate, which consists of a chlorine atom that is bound to four oxygen atoms.
The preliminary report indicated that Week had tested a "vegetable" (later reported as lettuce) and found 110 micrograms (mcg) of perchlorate in the sample.
EPA science and criteria, perchlorate does not meet the characteristics of endocrine disruptors.
The EPA decision to set a perchlorate standard came after monitoring data found more than 4 percent of public water systems have detected perchlorate and up to 17 million people may be drinking water containing the chemical.
In large doses, perchlorate can block the thyroid gland's uptake of iodine, which can lead to developmental delays in children.
And once you get dampness, the perchlorate is very soluble and it will become mobile," he added.
The agency is also asking the NAS how it should consider the role of perchlorate relative to other iodide uptake inhibiting compounds and other public health strategies exist to address this aspect of thyroid health.
The Food and Drug Administration conducted the preliminary exposure assessment in response to significant public interest in the issue of perchlorate exposure from food.