iron oxide

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Related to E172: FE2O3, E171

iron oxide

[′ī·ərn ′äk‚sīd]
(inorganic chemistry)
Any of the hydrated, synthetic, or natural oxides of iron: ferrous oxide, ferric oxide, ferriferous oxide.

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.

iron oxide

The material used to coat the surfaces of magnetic tapes and lower-capacity disks.
References in periodicals archive ?
The natural black iron oxide obtained by this process is free from heavy metals and meets the purity requirements set for E172 in the Food Colors Regulation established by the EU.
Net income in the first half was down 28% to E172 million (1999: E240 million).
The tablets are finished with a commercially available film-coating consisting of the following excipients: polyvinyl alcohol (partially hydrolyzed), titanium dioxide, macrogol/PEG, talc, and iron oxide yellow, E172 (100 mg tablet only).