iron oxide


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iron oxide

[′ī·ərn ′äk‚sīd]
(inorganic chemistry)
Any of the hydrated, synthetic, or natural oxides of iron: ferrous oxide, ferric oxide, ferriferous oxide.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.

iron oxide

A principal ingredient in a family of inorganic pigments, ranging from yellow through red and from purple to black; used extensively in paints.
McGraw-Hill Dictionary of Architecture and Construction. Copyright © 2003 by McGraw-Hill Companies, Inc.

iron oxide

A combination of iron and oxygen that is found in nature and also manufactured. Iron oxide is used in pigments and coatings such as the surfaces of magnetic tapes and disks. Iron bonds to oxygen in the air and eventually becomes rust, which is also iron oxide. Iron oxide-hydroxide, also known as "ferric oxyhydroxide," is iron, oxygen and hydrogen.
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References in periodicals archive ?
The superparamagnetic iron oxide tracer: a valid alternative in sentinel node biopsy for breast cancer treatment.
The iron oxide cement at this locality is typically dark red, with a dull lustre and stipple-speckled b-fabric (Fig.
* Generally speaking, what are the pros and cons of iron oxides in coatings?
In harmony with Figure 3, multicomponent nanoparticles contain FeS and iron oxides. Once FeS thin film contacted with free heavy metals in the pore water of soil samples, [S.sup.2-] promptly reacted with the toxic metals, forming chemically stable sulfides [41-43] because their solubility products favored the reaction (KspCu = ~[10.sup.-47]; [K.sub.sp,Cu] = ~[10.sup.-29]; and [K.sub.sp,Ni] = ~[10.sup.-1]2) [44].
The Fe levels in the control and treatment (iron sulfate and iron oxide) groups were recorded in the first (3.3 mg/kg), second (10 mg/kg), and third (33 mg/kg) experiments at time 0 and 1 hour, 6 hours, and 12 hours following iron supplement administration.
Figure 2 illustrates the equilibrium constants as a function of temperature for the reaction of iron oxides and [H.sub.2]S in the presence of CO and [H.sub.2].
From the UV-visible spectrometer analysis concluded that zinc oxide and iron oxide nanoparticles had an intense absorbance at ~250 nm which indicates that the synthesized particles were photosensitive in UV region [21].
* 10,000 mtpa of high-quality precipitated yellow iron oxide for coatings and paints
Other additives, such as iron oxide and fluxing ESAs, may promote the formation of fayalite ([Fe.sub.2]Si[O.sub.4]) and increase chemical penetration.
Among various multiferroic materials, bismuth iron oxide (BiFeO3) is promising because of its high ferroelectric and magnetic ordering temperatures.