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ferric oxide

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ferric oxide
n.
A dark red compound, Fe2O3, occurring naturally as hematite ore and rust and used in pigments and metal polishes and on magnetic tapes.

ferric oxide
A reddish-brown to silver or black compound which occurs naturally as the mineral hematite and as rust. It is often used as a pigment and a metal polish. Chemical formula: Fe2O3.
ThesaurusLegend:  Synonyms Related Words Antonyms
Noun1.ferric oxide - a red oxide of iron
rusting, rust - the formation of reddish-brown ferric oxides on iron by low-temperature oxidation in the presence of water
rust - a red or brown oxide coating on iron or steel caused by the action of oxygen and moisture
oxide - any compound of oxygen with another element or a radical
haemosiderin, hemosiderin - a granular brown substance composed of ferric oxide; left from the breakdown of hemoglobin; can be a sign of disturbed iron metabolism


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Granular ferric oxide is an iron-based adsorbent that can capture both arsenate and arsenite, but in general, it functions best at or below a pH of 7, and both phosphates and silicates can interfere with its action.
The sand cores were made predominately out of silica sand, which contained a significant amount of aluminum oxide as well as ferric oxide and calcium oxide.
In the 1970s, disk drives used hand-wound ferrite core "Monkey Face" heads and 14-inch 300 Oersted coercivity Ferric Oxide media.
 
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