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VERMILION

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Originally appearing in Volume V27, Page 1025 of the 1911 Encyclopedia Britannica.
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VERMILION , a See also:

scarlet pigment composed of mercuric sulphide, HgS. It may be obtained See also:direct from pure and See also:bright coloured portions of the native ore See also:cinnabar, or, artificially, by subliming a mixture of See also:mercury and See also:sulphur. The product is ground and levigated; and when dry it is ready for use. It is also prepared by digesting precipitated mercuric sulphide with an alkaline sulphide for some See also:hours; it is said that See also:Chinese vermilion owes its superiority to being made in this way. In addition to its brilliance, vermilion is a pigment of See also:great intensity and durability, remaining unaffected by See also:acid fumes. Being costly, it is much subject to See also:adulteration; but the fraudulent additions may easily be detected by volatilization, which in the See also:case of pure vermilion leaves no See also:residue. See FIGMENTS and MERCURY.

End of Article: VERMILION

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