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Chromium (Jeff Jansen)
Chromium (Jeff Jansen)
Chromium (Jeff Jansen)
Chromium (Jeff Jansen)
Chromium (Jeff Jansen)
Chromium (Jeff Jansen)
Chromium (Jeff Jansen)
Chromium (Jeff Jansen)
Chromium (Jeff Jansen)
Chromium (Jeff Jansen)
Chromium (Jeff Jansen)
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Chromium (Jeff Jansen)

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  • 1. By: Jeff Jansen
  • 2.  Chromium Atomic Number: 24 Atomic Mass: 51.9961 Group: 6 Period: 4 Color: silvery metallic Founder: Louis- Nicholas Vauquelin in 1797 Location: Peru Greek word for colour is ‘chroma’
  • 3.  Founder of Chromium and Beryllium Started with crocite and used HCl to precipitate the chromium oxide then heated to obtain the metal. Analyzed emerald in Peru and realized the color in it is chromium
  • 4.  Solid at room temperature Silvery metallic color Melting point: 2180 K (1907 C or 3465 F) Boiling point: 2944 K (2671 C or 4840 F) Density: 7.15 g/cm2 Major isotopes: Cr 50, 52, 53, 54 Uses: chrome plating, paints, hardens steel, armor plates, safes, ball bearing, cutting tools
  • 5.  Cr2O3- green pigment K2Cr2O7- tanning leather PbCrO4- yellow pigment Used for fire brick molds due to its high melting point
  • 6. Chrome hardened Armor Plate Chrome oxide green steel (paint)Chromeplated safe Chrome ball bearings
  • 7.  Element is found in South Africa, India, Kazakhstan, Zimbabwe, Finland, Iran, Brazil The chromite ore is obtained from mining Price of chromium: $6.27 per pound
  • 8.  Candian Nickel 1952- made of 1952 steel covered in chrome Chromium is antiferromagnetic below room temperature. Becomes Paramagnetic above 38 degrees Celsius Chromium is the 21st most abundant element in the Earths crust. It is present at a concentration of approximately 100 ppm. Maybe found in the same vicinity as diamonds
  • 9.  http://www.webelements.com/chromium/ http://www.chemicool.com/elements/chromium.html#Abundance http://www.google.com/imgres?q=chromium+element&um=1&hl=en&biw=1280&bih =631&tbm=isch&tbnid=nIrDbmhlnVqr2M:&imgrefurl=http://web.as.uky.edu/Chemist ry/Faculty/Bachas/Genealogy/genetable.html&docid=53HtGKRZUFr_aM&imgurl=htt p://web.as.uky.edu/Chemistry/Faculty/Bachas/Genealogy/vauquelin.jpg&w=327&h =432&ei=- DvFTvSyJIvVgAfM1OH2Dg&zoom=1&iact=hc&vpx=1038&vpy=227&dur=4362&hovh= 258&hovw=195&tx=158&ty=163&sig=110126848219894261128&page=1&tbnh=124&tbn w=111&start=0&ndsp=21&ved=1t:429,r:20,s:0 (image Founder) http://www.google.com/imgres?q=chrome+ball+bearing&um=1&hl=en&biw=1280&bi h=631&tbm=isch&tbnid=WExbZINvwFFBFM:&imgrefurl=http://www.v- sheng.com/Bearing%2520%26%2520Ball/bearing/index10.htm&docid=p6Koosf7XEKV uM&imgurl=http://www.v- sheng.com/Bearing%252520%2526%252520Ball/bearing/images/steelball1.jpg&w=400 &h=276&ei=KUHFTuKSNcHDgQf705DUDg&zoom=1&iact=hc&vpx=170&vpy=149&d ur=155&hovh=186&hovw=270&tx=145&ty=108&sig=110126848219894261128&page=1& tbnh=129&tbnw=173&start=0&ndsp=18&ved=1t:429,r:0,s:0 http://www.recycleinme.com/scrapresources/DetailedPrice.aspx?cat=Other%20Metals &subcat=Chromium
  • 10.  http://www.google.com/imgres?q=chromium&um=1&hl=en&sa=N&bi w=1280&bih=631&tbm=isch&tbnid=JRiVN8ipS5UyEM:&imgrefurl=http: //en.wikipedia.org/wiki/Chromium&docid=z6Op8d0C10xtHM&imgur l=http://upload.wikimedia.org/wikipedia/commons/thumb/0/08/Chr omium_crystals_and_1cm3_cube.jpg/250px- Chromium_crystals_and_1cm3_cube.jpg&w=250&h=149&ei=QTzFTqGm JIiygweioenxDg&zoom=1&iact=rc&dur=181&sig=11012684821989426112 8&page=1&tbnh=83&tbnw=140&start=0&ndsp=21&ved=1t:429,r:0,s:0&tx =52&ty=50 http://www.google.com/imgres?q=chrome+plated+safe&um=1&hl=en &biw=1280&bih=631&tbm=isch&tbnid=XZFjX9Ij1Ro49M:&imgrefurl=htt p://www.wilsonsafe.com/acatalog/high_security_safes.html&docid=Y wvzF1HO5vsmKM&imgurl=http://www.wilsonsafe.com/acatalog/relia nce_tn.jpg&w=125&h=133&ei=xkDFTrKpFsStgwemuNCHBw&zoom=1& iact=hc&vpx=503&vpy=337&dur=3482&hovh=106&hovw=100&tx=78&t y=99&sig=110126848219894261128&page=1&tbnh=106&tbnw=100&start =0&ndsp=21&ved=1t:429,r:9,s:0 http://chemistry.about.com/od/chromium/a/10-Chromium-Facts.htm
  • 11.  http://www.google.com/imgres?q=chromium+paint&um=1&hl=en&sa =N&biw=1280&bih=631&tbm=isch&tbnid=z_E2xsplQlFwAM:&imgrefur l=http://www.made-in-china.com/showroom/ruifang1983/product- detaileqjJHREAmaYx/China-Chromium-Oxide- Green.html&docid=5JiWsgcPHCZoAM&imgurl=http://image.made-in- china.com/2f0j00vCyTWgaYTUrQ/Chromium-Oxide- Green.jpg&w=768&h=512&ei=dD7FTq7zFcrYgQf_wcmGDw&zoom=1&i act=hc&vpx=353&vpy=132&dur=4728&hovh=183&hovw=275&tx=162&t y=125&sig=110126848219894261128&page=1&tbnh=130&tbnw=174&start =0&ndsp=18&ved=1t:429,r:1,s:0 http://www.google.com/imgres?q=chrome+hardened+steel&um=1&hl =en&sa=N&biw=1280&bih=631&tbm=isch&tbnid=94Bf4qHIioeCLM:&im grefurl=http://japan.webike.net/categories/m410/3000_3100.html&doci d=JKzH_PWhQ- tUGM&imgurl=http://118.151.169.117/jp_images/images/catalogue/11 526/60486s.jpg&w=140&h=140&ei=uz_FTsDIH8afgwePwuXUDg&zoom =1&iact=rc&dur=4&sig=110126848219894261128&page=2&tbnh=112&tbn w=112&start=20&ndsp=21&ved=1t:429,r:0,s:20&tx=101&ty=83 http://periodictable.com/Elements/024/index.html

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