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alline salt (AgNO3), used in photography and as a cauterizing agent; -- called also lunar caustic.

t tissues as the calcium oxalate. It is prepared on a large scale, by the action of fused caustic soda or potash on sawdust, as a white crystalline substance, which has a strong acid taste, and is poisonous in large doses. It is used in dyeing, calico printing, bleaching flax and straw, the preparation of formic acid,…

The hydroxide of potassium hydrate, a hard white brittle substance, KOH, having strong caustic and alkaline properties; -- hence called also caustic potash.

Potassium hydroxide, commonly called caustic potash.

Sharply painful; penetrating; poignant; severe; caustic; stinging. With pungent pains on every side. Swift. His pungent pen played its part in rousing the nation. J. R. Green.

Caustic. See Caustic. -- n. (Med.)

the phenol series, obtained by melting certain resins, as galbanum, asafetida, etc., with caustic potash. It is also produced artificially and used in making certain dyestuffs, as phthaleïn, fluoresceïn, and eosin.

A mixtire of caustic lime and orpiment, or tersulphide of arsenic, -- used in the depilation of hides. Knight.

Keeness and severity of remark; caustic exposure to reprobation; trenchant wit; sarcasm.

ment prepared from the ink, or black secretion, of the sepia, or cuttlefish. Treated with caustic potash, it has a rich brown color; and this mixed with a red forms Roman sepia. Cf. India ink, under India. Sepia drawing or picture, a drawing in monochrome, made in sepia alone, or in sepia with other brown pigments.…

Popularly, sodium carbonate or bicarbonate. Caustic soda, sodium hydroxide. -- Cooking soda, sodium bicarbonate. [Colloq.] -- Sal soda. See 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…

manufacture of soap, in making wood pulp for paper, etc. Called also sodium hydrate, and caustic soda. By extension, a solution of sodium hydroxide.

h is terminated by the flank prolonged, and the angle of the nearest bastion. Stocqueler. Caustic surface, Heating surface, etc. See under Caustic, Heating, etc. -- Surface condensation, Surface condenser. See under Condensation, and Condenser. -- Surface gauge (Mach.), an instrument consisting of a standard having a…

A caustic application made up of equal parts of caustic potash and quicklime; -- called also Vienna caustic.

erry. -- Wax painting, a kind of painting practiced by the ancients, under the name of encaustic. The pigments were ground with wax, and diluted. After being applied, the wax was melted with hot irons and the color thus fixed. -- Wax palm. (Bot.) (a) A species of palm (Ceroxylon Andicola) native of the Andes, the ste…