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.
Home › To Remove Stains And Spots › To Clean Marble (Take parts on the stain)
To Clean Marble (Take parts on the stain)
Take. 2 parts on the stain a small portion of oxalic acid of common soda, 1 part of pumice-stone, and powder and cream of tartar, mixed together 1 part of finely powdered chalk; sift it in equal quantities, and kept in a box. When through a fine sieve, and mix it with water; the stain disappears, wash the hands with fine soap. This mixture, being poisonous, must be kept out of the reach of children. A few drops of oil of vitriol (sulphuric acid) will also remove most stains from the hands without injuring them. Care must, however, be taken not to drop it upon the clothes. It will remove the color from woolen, and eat holes in cotton fabrics. The juice of ripe tomatoes will remove the stain of walnuts from the hands, without injury to the skin. 389. To take Ink Stains out of Mahogany. Put a few drops of spirits of nitre (nitric acid) in a tea-spoonful of water, touch the spot with a feather dipped in the mixture, and on the ink disappearing, rub it over immediately with a rag wetted in cold water, or there will be a white mark, which will not be easily effaced. then rub it well all over the marble, and the stains will be removed; then wash the marble over with soap and water, and it will be as clean as it was at first.