ferric oxide

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.

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ferric oxide

n

(Chemistry / Elements & Compounds) a red crystalline insoluble oxide of iron that occurs as haematite and rust and is made by heating ferrous sulphate: used as a pigment and metal polish (jeweller's rouge), and as a sensitive coating on magnetic tape. Formula: Fe₂O₃ Systematic name iron(III) oxide

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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.

Thesaurus

Noun

1.

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