Stains (To Remove From The Hands). Damp the hands first with water, then rub them with tartaric acid, or salt of lemons, as you would with soap; rinse them, and rub them dry. Tartaric acid or salt of lemons will quickly remove stains from white muslin or linens. Put less than half a teaspoonful of the salt or acid into a tablespoon ful of water; wet the stain with it, and lay it in the sun for at least an hour; wet it once or twice with cold water during the time. If this does not quite remove it, repeat the acid-water, and lay it again in the sun.