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A bleaching vat; a kier.

A large tub or vat in which goods are subjected to the action of hot lye or bleaching liquor; -- also called keeve.

trong acid taste, and is poisonous in large doses. It is used in dyeing, calico printing, bleaching flax and straw, the preparation of formic acid, and in salts of lemon for removing ink stains, mold, etc.

Chlorine used in bleaching. [Manufacturing name]

, potches. Potcher engine (Paper Making), a machine in which washed rags are stirred in a bleaching solution.

to intensify (a developed image), as by bleaching with mercuric chloride and subsequently subjecting anew to a developing agent. -- Re`de*vel"op*er (#), n. --Re`de*vel"op*ment (#), n.

sulphur. It is employed chiefly in the production of sulphuric acid, and as a reagent in bleaching; -- called also sulphurous anhydride, and formerly sulphurous acid. -- Sulphur ether (Chem.), a sulphide of hydrocarbon radicals, formed like the ordinary ethers, which are oxides, but with sulphur in the place of oxyge…

g with, or exposing to the action of, sulphur; especially, an apparatus for fumigating or bleaching by means of the fumes of burning sulphur.

their salts, and is used in the manufacture of hydrochloric and nitric acids, of soda, of bleaching powders, etc. It is also powerful dehydrating agent, having a strong affinity for water, and eating and corroding paper, wood, clothing, etc. It is thus used in the manufacture of ether, of imitation parchment, and of ni…

Exposure to the fumes of burning sulphur, as in bleaching; the process of bleaching by exposure to the fumes of sulphur.

loves, and the like, by imbuing them with alum, salt, and other agents, for softening and bleaching them.

e wagtail (Zoöl.), the common, or pied, wagtail. -- White wax, beeswax rendered white by bleaching. -- White whale (Zoöl.), the beluga. -- White widgeon (Zoöl.), the smew. -- White wine. any wine of a clear, transparent color, bordering on white, as Madeira, sherry, Lisbon, etc.; -- distinguished from wines of a de…