SILVER         The origin of the name sil very(prenominal) is thought to of neck from an close totime(a) English name Seofor which was a dropd to char shamerize the metal. The symbol for argent, Ag, is derived from the Latin word argentum which may have originated from the Greek word argos, pith shiny or white. Some of the history of fluent is ill-defined in whatsoever argonas. There is no eternalise of the soulfulness or persons who discovered currency beca utilisation it was discovered a gigantic time ago most likely the denudation occurred very early in human history. Archaeologists have instal eloquent objects dating to around 3400 B.C. in Egypt. There be alike drawings of men working with metal, most likely extracting coin ornament from ores, in the oldest pyramids. There atomic number 18 written records or funds-tongued in India dating back to about 900 B.C. There are also references to silverish-tongued in the Bible it w as a innovation of money and a decorative piece. The Bible also describes the manufacturing manufacture of silver. ash grey was once found in large quantities, solo they disappeared long ago due to mining. Now silver comes in comes in very small amounts from ore and is commonly a by-product of mining of new(prenominal) metals. The major silver producing countries are the fall in States, Mexico, Canada, Peru, Russia, and Australia.         There are m all(prenominal) uses for silver some of which that are common place and new(prenominal)s that are non. An obvious one is for the use of coins, jewelry, and artwork, which is utilize for about 10% of the silver produced in the fall in States. About half of the silver produced in the United States is apply for the production of photographic film. This is done by pure silver being converted to a compound of silver chloride, silver bromide, or silver iodide which is used to make the photographic film. An a nonher(prenominal) important use for ! silver is in electrical and electronic equipment. Electrical and electronic equipment account for about 20% of the silver produced.
Because silver lets electricity flow through it better than any opposite metal it is the most desirable of all metals for electronics. Silver is used for devices that are so important that cost is not an issue such as electrical devices on spacecraft, satellites, and aircraft so they earth-closet work reliably and efficiently. Silver plating is an other use for when pure silver can not be used so that silver is laid on some other metal in which the metal takes on some of the prop erties of the silver coating. Other common uses for silver is for dental amalgams, batteries (silver-zinc and silver-cadmium batteries), medicines, mirrors, it can act as a catalyst in chemical reactions to enhance the oxidation of organic compounds in the vapor secern such as in cars, and to make alloys. If you want to deliver a full essay, order it on our website: OrderCustomPaper.com
If you want to get a full essay, visit our page: write my paper
No comments:
Post a Comment