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lor. -- Queen's yellow (Old Chem.), a heavy yellow powder consisting of a basic mercuric sulphate; -- formerly called turpetum minerale, or Turbith's mineral.

Hence, by extension (Med.), any of the salts of this alkaloid, as the acetate, chloride, sulphate, etc., employed as a febrifuge or antiperiodic. Called also quinia, quinina, etc. [Written also chinine.]

Sal ammoniac above. -- Sal de duobus, Sal duplicatum Etym: [NL.] (Old Chem.), potassium sulphate; -- so called because erroneously supposed to be composed of two salts, one acid and one alkaline. -- Sal diureticus Etym: [NL.] (Old Med. Chem.), potassium acetate. -- Sal enixum Etym: [NL.] (Old Chem.), acid potassium…

compound formed by the union of an acid base; thus, sulphuric acid and iron form the salt sulphate of iron or green vitriol.

ater, a natural water from Seidlitz, containing magnesium, sodium, calcium, and potassium sulphates, with calcium carbonate and a little magnesium chloride. It is used as an aperient.

e; whence the name. -- Aluminous slate, or Alum slate (Min.), a kind of slate containing sulphate of alumina, -- used in the manufacture of alum. -- Bituminous slate (Min.), a soft species of sectile clay slate, impregnated with bitumen. -- Hornblende slate (Min.), a slaty rock, consisting essentially of hornblende…

Sodium carbonate, under Sodium. -- Soda alum (Min.), a mineral consisting of the hydrous sulphate of alumina and soda. -- Soda ash, crude sodium carbonate; -- so called because formerly obtained from the ashes of sea plants and certain other plants, as saltwort (Salsola). See under Sodium. -- Soda fountain, an appar…

having a very bitter acrid taste, and is employed in medicine (chiefly in the form of the sulphate) as a powerful neurotic stimulant. Called also strychnia, and formerly strychnina.

Of, pertaining to, resembling, or containing, a sulphate or sulphates.

A combining form (also used adjectively) denoting a sulphate as an ingredient in certain double salts; as, sulphato-carbonate. [R.]

ical, SO4, regarded as forming the acid or negative constituent of sulphuric acid and the sulphates in electrolytic decomposition; -- so called in accordance with the binary theory of salts. [Written also sulphione.]

rring naturally in large quantities, either combined as in the sulphides (as pyrites) and sulphates (as gypsum), or native in volcanic regions, in vast beds mixed with gypsum and various earthy materials, from which it is melted out. Symbol S. Atomic weight 32. The specific gravity of ordinary octohedral sulphur is 2.0…

superseded by per-, bi-, di-, acid, etc. (as peroxide, bicarbonate, disulphide, and acid sulphate), which retain the old meanings of super-, but with sharper definition. Cf. Acid, a., Bi-, Di-, and Per-.

nary test for sulphuric acid is the production of a white insoluble precipitate of barium sulphate by means of some soluble barium salt. Test act (Eng. Law), an act of the English Parliament prescribing a form of oath and declaration against transubstantiation, which all officers, civil and military, were formerly obli…

Anhydrous sodium sulphate, a mineral of a white or brown color and vitreous luster.

A heavy yellow powder, Hg3O2SO4, which consists of a basic mercuric sulphate; -- called also turpeth mineral.

; -- used in naming certain complex compounds; as in uranoso-uranic oxide, uranoso-uranic sulphate.

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

t into various ornamental patterns. -- Venetian red, a brownish red color, prepared from sulphate of iron; -- called also scarlet ocher. -- Venetian soap. See Castile soap, under Soap. -- Venetian sumac (Bot.), a South European tree (Rhus Cotinus) which yields the yellow dyewood called fustet; -- also called smoke t…

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