ferric hydroxide


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ferric hydroxide

[′fer·ik hī′dräk‚sīd]
(inorganic chemistry)
Fe(OH)3 A brown powder, insoluble in water; used as arsenic poisoning antidote, in pigments, and in pharmaceutical preparations. Also known as ferric hydrate; iron hydroxide.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
References in periodicals archive ?
It is generally known that, the formed passivation layer on iron electrode may be destroyed by Cl- anions, which can increase the anodic dissolution rate of the metal; this will, in turn, lead to greater production of ferric hydroxide.
[Fe.sup.3+] increases the surface potential of CuO significantly because of the large amount of ferric hydroxide which begins to precipitate on the CuO surface earlier than in the solution, so the zeta potential will remain positive until the pH gets to the IEP of ferric hydroxide itself.
According to him after deposition, the ferric hydroxide spontaneously de-waters to form limonite; if complete dehydration occurs then hematite is formed.
In the oxidation/reduction reaction Mn[O.sub.2] is reduced to MnO, and ferrous iron is oxidized to ferric iron forming ferric hydroxide, which is precipitated [9]:
If the electrode serving as the anode is made of iron, some of the iron will go into the water, resulting in the formation of ferric hydroxide, giving it a dirty brown appearance within seconds
Gadgil and his team coat the ash particles with ferric hydroxide, which in turn bonds powerfully with available arsenic.
Iron dextran is a complex of ferric hydroxide and the carbohydrate dextran.
* Graph 1 shows the ferric hydroxide floc as insoluble over a broader pH range than the aluminum hydroxide floc.
HDPE maintains optimum flow rates, does not tuberculate (form deposits of insoluble ferric hydroxide which occurs inside ductile and cast iron pipe), and has a high resistance to scale and biological build up.