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Typical caustic pencil with detail of dried, oxidized, and inactive chemical. A caustic pencil (or silver nitrate stick) is a device for applying topical medication containing silver nitrate and potassium nitrate, used to chemically cauterize skin, providing hemostasis or permanently destroying unwanted tissue such as a wart, skin tag, aphthous ulcers, or over-production of granulation tissue. [1]
A typical reaction with silver nitrate is to suspend a rod of copper in a solution of silver nitrate and leave it for a few hours. The silver nitrate reacts with copper to form hairlike crystals of silver metal and a blue solution of copper nitrate: 2 AgNO 3 + Cu → Cu(NO 3) 2 + 2 Ag. Silver nitrate decomposes when heated:
Some silver oxide powder.. Silver is a relatively unreactive metal, although it can form several compounds. The common oxidation states of silver are (in order of commonness): +1 (the most stable state; for example, silver nitrate, AgNO 3); +2 (highly oxidising; for example, silver(II) fluoride, AgF 2); and even very rarely +3 (extreme oxidising; for example, potassium tetrafluoroargentate(III ...
Disposal methods vary by country and locale, but common methods of disposal are either by truck service or, in the United States, by disposal of sharps through the mail. Truck service involves trained personnel collecting sharps waste, and often medical waste , at the point of generation, and hauling it away by truck to a destruction facility.
Whether silver plating or pure silver, the composite of the metal will tarnish when exposed to air and sulfur. Tarnish is a chemical reaction on the surface of metal (copper, brass, silver, etc.) and causes a layer of corrosion. In the case of silver tarnish, the silver combines with sulfur and forms silver sulfide (Ag 2 S), which is
Silver nitrate is a salt of silver that is sometimes used by dentists as a caustic material to cauterize mouth sores, and has in the past been used by physicians for treating wounds. It may be an appropriate material to salt the earth after burying a monster that has been killed with silver bullets .
Silver acetylide is an inorganic chemical compound with the formula Ag 2 C 2, a metal acetylide.The compound can be regarded as a silver salt of the weak acid, acetylene.The salt's anion consists of two carbon atoms linked by a triple bond, thus, its structure is [Ag +] 2 [− C≡C −].
Silver azide can be prepared by treating an aqueous solution of silver nitrate with sodium azide. [2] The silver azide precipitates as a white solid, leaving sodium nitrate in solution. AgNO 3 + NaN 3 (aq) → AgN 3 + NaNO 3 (aq) X-ray crystallography shows that AgN 3 is a coordination polymer with square planar Ag + coordinated by four azide ...