Important: Safety Warning
This page describes trade processes that use dangerously toxic materials such as cyanide solutions, mercury amalgams, or strong acids. These processes require training, equipment, and precautions far beyond what the text describes.
In addition, this page directs the use of hazardous substances — such as benzine, gasoline, lye, or strong acids — for household tasks. These materials are highly flammable, corrosive, or poisonous, and the practices described have caused fires, burns, and poisonings.
This information has been left in for historical purposes but should not be acted upon.
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Ganteine
A composition for when the rod is withdrawn it is rotated, in cleaning kid gloves; sometimes improperly order to diffuse the fluid jelly equally over its of it. ened region. When dry, the powder is to be shaken and brushed off, when no trace of the spot will remain. surface; as soon as the gelatinous film has 6344. To Remove the Stains of Benpartially hardened, it is removed from the zine. In removing grease spots from fabrics mould and placed on pins furnished with by means of benzine or petroleum it often suitable heads, and fixed on a cork table. happens that a colored and stained outline of When dry, the capsules are placed upright in the portion moistened is left. This can be little cells made in the table to receive them, prevented by the application of a layer of and the liquid with which they are to be gypsum extending a little beyond the moistfilled is introduced by means of a small glass tube. They are then closed by dropping some melted gelatine on the orifice of each.
Ricord recommends that capsules containing 6345. Το Clean Silver. To clean silver copaiba be coated with extract of rhatany, utensils, blackened by sulphuretted hydrogen, waich is easily done by immersing the capsule Boettger recommends a boiling saturated solufor an instant in a mixture of 3 parts newly tion of borax, or a solution of caustic potash, prepared extract of rhatany, 1 part syrup of with some fragments of metallic zinc. moist sugar, and 1 part mucilage of gum ara- 6346. To Clean a Wedgwood Mortar. bic, meited together in a water-bath. Cap- A solution of caustic potash will usually be sules thus prepared are said to act with greater effectual; this may be triturated in the morcertainty, as well as improving the tone of tar with fine sand or powdered pumice-stone. the stomach.
Sometimes sulphuric acid will serve a better