Rust
Rust is composed of iron oxides. In colloquial usage, the term is applied to red oxides, formed by the reaction of iron and oxygen in the presence of water or air moisture. Other forms of rust exist, like the result of reactions between iron and chloride in an environment deprived of oxygen – rebar used in underwater concrete pillars is an example – which generates green rust. Several forms of rust are distinguishable visually and by spectroscopy, and form under different circumstances. Rust consists of hydrated iron(III) oxides Fe2O3·nH2O and iron(III) oxide-hydroxide FeO(OH)·Fe(OH)3.
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Famous quotes containing the word rust:
“How dull it is to pause, to make and end,
To rust unburnished, not to shine in use!
As though to breathe were life!”
—Alfred Tennyson (1809–1892)
“Sunday clears away the rust of the whole week.”
—Joseph Addison (1672–1719)
“Then we shall rust in shade, or shine in strife,
And fluctuate ‘twixt blind hopes and blind despairs,
And fancy that we put forth all our life,
And never know how with the soul it fares.”
—Matthew Arnold (1822–1888)