Important: Safety Warning
This page contains a formula or preparation using substances now known to be dangerously toxic, such as arsenic, mercury, lead, or cyanide compounds. Exposure to these substances can cause severe poisoning, permanent injury, or death.
In addition, 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 presents medical treatment from an era before modern medicine. The remedies described are ineffective against the conditions named, and some of the ingredients or doses are harmful. Do not use them to treat any illness; consult a qualified medical professional.
This information has been left in for historical purposes but should not be acted upon.
Home › Miscellaneous Receipts › Mosaic Gold
Mosaic Gold
Melt 12 ounces pure tin, by a gentle heat, add 6 ounces mer-- cury, and reduce to powder; when cold, add 6 ources muriate of ammonia, and 7 ounces | when dissolved, remove the vessel from the flowers of sulphur; mix thoroughly. Place fire and proceed as before. the compound in a glass flask, and gradually 6370. Hunter's Bougie. Boil slowly heat to redness in a sand-bath, continuing the heat till all white fumes cease; during this operation bisulphuret of mercury, muriate of tin and sal-ammoniac are sublimed, leaving the mosaic gold at the bottom of the flask in soft, brilliant, gold-colored flakes. Mosaic gold, also called Aurum Musivum, is therefore the bisulphuret of tin. (Cooley.) 6363. To Preserve Pencil and Indian Ink Sketches. To a solution of collodion of the consistency used by photographers, add 2 per cent. of stearine. The drawing is then spread on a board or plate of glass and the collodion poured over it as in photography. (See No. 3143.) It dries in 10 to 20 minutes, and so thoroughly protects the drawing that together, until combination takes place, 2 parts yellow wax, 3 parts red lead, and 6 parts olive oil; strips of soft linen, rather wider at one end than the other, are then dipped into the composition, rolled up firmly, and finish-. ed on a polished slab.