"Copperas" is a word in ENGLISH

copperas ENGLISH
Definition:

Green vitriol, or sulphate of iron; a green crystalline
substance, of an astringent taste, used in making ink, in dyeing black,
as a tonic in medicine, etc. It is made on a large scale by the
oxidation of iron pyrites. Called also ferrous sulphate.

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Like ink; suitable for making ink. Sulphate of iron (copperas, green vitriol) is called atramentarious, as being used in making …

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botryogen ENGLISH

A hydrous sulphate of iron of a deep red color. It often occurs in botryoidal form.

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coquimbite ENGLISH

A mineral consisting principally of sulphate of iron; white copperas; -- so called because found in the province of Coquimbo, …

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ferrous ENGLISH

Pertaining to, or derived from, iron; -- especially used of compounds of iron in which the iron has its lower …

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jarosite ENGLISH

An ocher-yellow mineral occurring on minute rhombohedral crystals. It is a hydrous sulphate of iron and potash.

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melanterite ENGLISH

A hydrous sulphate of iron of a green color and vitreous luster; iron vitriol.

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misy ENGLISH

An impure yellow sulphate of iron; yellow copperas or copiapite.

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monsel's salt ENGLISH

A basic sulphate of iron; -- so named from Monsel, a Frenchman.

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polyhalite ENGLISH

A mineral usually occurring in fibrous masses, of a brick-red color, being tinged with iron, and consisting chiefly of the …

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salt ENGLISH

The neutral compound formed by the union of an acid and a base; thus, sulphuric acid and iron form the …

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Pills containing sulphate of iron and carbonate of sodium, mixed with saccharine matter; -- called also Vallet's mass.

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vitriol ENGLISH

A sulphate of any one of certain metals, as copper, iron, zinc, cobalt. So called on account of the glassy …

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