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bstance, KOH, having strong caustic and alkaline properties; -- hence called also caustic potash.

Potash. [Obs.]

the union of acetic acid with a base or positive radical; as, acetate of lead, acetate of potash.

Soda ash; caustic soda, caustic potash, etc.

ing rains or irrigation. The basis of these salts is mainly soda with a smaller amount of potash, and usually a little lime and magnesia. Two main classes of alkali are commonly distinguished: black alkali, which may be any alkaline carbonate, but which practically consists of sodium carbonate (sal soda), which is hig…

A subsulphate of alumina and potash; alunite.

A place where potash is made.

Crude potash. De Colange.

One who,makes crude potash, or black salts.

An instrument for measuring the bleaching power of chloride of lime and potash; a chlorometer. Ure.

ity, made in Bohemia. It is of variable composition, containing usually silica, lime, and potash, rarely soda, but no lead. It is often remarkable for beauty of color.

odor and sweetish taste. It is produced by the simultaneous action of bromine and caustic potash upon wood spirit, alcohol, or acetone, as also by certain other reactions. In composition it is the same as chloroform, with the substitution of bromine for chlorine. It is somewhat similar to chloroform in its effects. Wat…

A kind of oven, or reverberatory furnace, used for the calcination of sand and potash, and converting them into frit. Ure.

and the luminous point being in one plane. -- Caustic lime. See under Lime. -- Caustic potash, Caustic soda (Chem.), the solid hydroxides potash, KOH, and soda, NaOH, or solutions of the same. -- Caustic silver, nitrate of silver, lunar caustic. -- Caustic surface (Optics), a surface to which rays reflected or ref…

The quality of being caustic; corrosiveness; as, the causticity of potash.

Said of potash, probably in reference to its having been obtained from billets of wood by burning. [Obs.]

anide when nitrogen or a nitrogenous compound is strongly ignited with carbon and soda or potash. It conducts itself like a member of the halogen group of elements, and shows a tendency to form complex compounds. The name is also applied to the univalent radical, CN (the half molecule of cyanogen proper), which was one…

A kind of Muscovite, or potash mica, containing water.

s, with sugar of milk, but in England (as formerly in the United States) with sulphate of potash, and in France (as in Dr. Dover's original prescription) with nitrate and sulphate of potash and licorice. It is an anodyne diaphoretic.

f minerals, closely related in crystalline form, and all silicates of alumina with either potash, soda, lime, or, in one case, baryta. They occur in crystals and crystalline masses, vitreous in luster, and breaking rather easily in two directions at right angles to each other, or nearly so. The colors are usually white…