ferric oxide

American  

noun

Chemistry.

1. a dark-red, crystalline, water-insoluble solid, Fe 2 O 3 , occurring naturally, as hematite and rust, or synthesized: used chiefly as a pigment, as a mordant, as a coating for magnetic recording tape, and in the manufacture of polishing compounds.

---

ferric oxide British  

noun

1. Systematic name: iron (III) oxide. 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: Fe 2 O 3

---

ferric oxide Scientific  

1. 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: Fe ₂ O ₃ .

---

Etymology

Origin of ferric oxide

First recorded in 1880–85

---

Example Sentences

See Examples For:

ferric oxide

His first major product was the development of a tape recorder: he heated ground iron in a frying pan to collect the ferric oxide he needed to make magnetic tape.

From New York Times ● Feb. 28, 2011

The ferric hydroxide accumulates in the sheath, and gradually passes into the more insoluble ferric oxide.

From Encyclopaedia Britannica, 11th Edition, Volume 3, Part 1, Slice 2 "Baconthorpe" to "Bankruptcy" by Various

When we say that oxygen and iron unite and form ferric oxide, we express a law of matter: that is, that these elements have an affinity for each other.

From Report on Surgery to the Santa Clara County Medical Society by Joseph Bradford Cox

Ochre is a hydrated ferric oxide permeating a clay base, largely used as a tinting material.

From Paint Technology and Tests by Henry A. Gardner

The Curb Pins sometimes produce the ferric oxide mentioned by their action on the hairspring.

From Friction, Lubrication and the Lubricants in Horology by William T. Lewis

Random Word

Spin the wheel and learn a new word!

---