"Persulphate" is a word in ENGLISH

A compact variety or sulphate of lime, or gypsum, of fine texture, and usually white and translucent, but sometimes yellow, …

A double sulphate formed of aluminium and some other element (esp. an alkali metal) or of aluminium. It has twenty-four …

A white fibrous mineral frequently found on the walls of mines and quarries, chiefly hydrous sulphate of alumina; -- also …

A native sulphate of lead. It occurs in white or yellowish transparent, prismatic crystals.

A mineral of a white or a slightly bluish color, usually massive. It is anhydrous sulphate of lime, and differs …

In chemistry it is used to denote the salts formed from those acids whose names end -ic (excepting binary or …

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

Native sulphate of barium, a mineral occurring in transparent, colorless, white to yellow crystals (generally tabular), also in granular form, …

Barium sulphate, generally called heavy spar or barite. See Barite.

A sulphate in which but half the hydrogen of the acid is replaced by a positive element or radical, thus …

A hydrous sulphate of magnesium and sodium.

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

A basic sulphate of copper, occurring in emerald-green crystals.

A hydrous sulphate of copper and lead, found in some parts of Caledonia or Scotland.

Native strontium sulphate, a mineral so named from its occasional delicate blue color. It occurs crystallized, also in compact massive …

Green vitriol, or sulphate of iron; a green crystalline substance, of an astringent taste, used in making ink, in dyeing …

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

Native sulphate of copper. Cf. Blue vitriol, under Blue.

A powder of ipecac and opium, compounded, in the United States, with sugar of milk, but in England (as formerly …

Native sulphate of magnesia or Epsom salt.