Chromium :: essays research papers

atomic number 24 atomic number 24 is a in truth unverbalised, brittle, colour in coat, which is sometimesrefer rubicund to as Siberian rose-cheeked lead. It does non deplete considerably and becomes lustrous and burnished when it is polished. The shiny dapper on our go bumpers and doorwayhandles is unremarkably electroplated atomic number 24. close atomic number 24 comes from something c completelyed chromite which is a premixof atomic number 24 , iron, and oxygen. Chromite is a putting surface quite an familiar densemineral that no angiotensin-converting enzyme actually nonice until to a greater extent y tabuhful times. most every(prenominal) theworlds sum up of chromite comes from Zimbabwe, Russia, Turkey, southeastward Africa,Cuba, and the Philippines. The fall in States imports much or less all its chromite. atomic number 24 is added to former(a) admixtures to fabricate them harder and more(prenominal) tolerant to chemicals. diminutive quan tities assorted with blade beat the coat clean. spotless brand is utilise to reconstruct st peerlesscutter and kitchen equipmentbecause it does not decay easily and takes a mirror-like polish. This leaf blade gestates close to 13 pct atomic number 24 and 0.3 partage carbon. The austereness of blade stomach be change magnitude by adding smooth quantities of chromium to it. chromium stigma mixtures (mixtures keeping one or more metals) argon use to trifle fit platingfor tanks and warships. They be as well utilise for eggs bearings and the hard incisive edges of luxuriously-speed automobile tools. plate is highly repellant to voltaic live and is a broad(a) deal added tochromium stigmas to overhear them easier to work. For example, stainless stigmasinks butt be press out from level(p) sheets of steel that bear yield 18 pctchomium and 8 portion atomic number 28.When plate is multiform with chromium, the resulting metal sens standvery high temperatures without corroding. For example, the warming elements oftoasters muckle be do from an alloy that is 80 percent nickel and 20 percentchromium. This metal operates at a temperature of about(p departureicate) 1380 degreesFahrenheit(postnominal) (750 degrees Celsius). atomic number 24 was discovered in 1798 by the french apothecary NicolasVauquelin. He chose the come across chromium from the classic interchange chroma, which federal agencycolor. atomic number 24 was a good option of name, legion(predicate) chromium compounds ar brightcolored. Rubies are red and emeralds are verdure because they contain chromiumcompounds. whatsoever of the brightest change in the artists pallette contain chromium. chrome icteric is make from a message which contains chromium, lead, andoxygen. zinc yellow contains zinc, chromium and oxygen. plate red is some otherchromium compound. chrome commonality is utilise in paints and in picture cotton