White Gold
Transcript: White Gold http://chemistry.about.com/od/jewelrychemistry/a/White-Gold.htm http://eragem.com/news/1350456/ http://en.wikipedia.org/wiki/Colored_gold http://www.azom.com/article.aspx?ArticleID=8086 whitegoldprice.net White Gold Material Discovery White Gold Sources Manufactured/ Produced Physical Properties: Depend on the metal and proportion used gold-palladium alloys are soft, pliable, and a nickel gold alloy is hard and strong Colors can very, but always light Looks like silver and platinum Most European jewelry manufacturers and some American jewelry manufacturers avoid nickel white gold because about one in eight people experiences a reaction to the nickel-containing alloy, typical symptoms include mild to severe dermatitis White gold can look exactly like platinum if it contains the right proportion of it Without the rhodium coating, white gold might be gray, dull brown, or even pale pink. White Gold is an alloy made of at least one white metal, usually nickel, silver, Rhodium, manganese, and palladium etc. A common white gold consists of 90 wt.% gold and 10 wt.% nickel. White gold comes in many purity percentages – 10K is 41% pure gold, 14K is 58% pure gold and 18K is 75% pure gold, and the rest another white metal White metal can be 25% up to 59% Many time can be more than one metal; 75% gold, 16% silver and 9% copper yields yellow gold. White gold is an alloy of 75% gold, 4% silver, 4% copper and 17% palladium. Mostly used in jewelry especially bridal jewelery Used to enhance diamonds and other precious gemstones Can also be used for other accessories like belts and grillz, medals, artwork, etc. Even a Benz The Belais brothers began experimenting with formulas for white gold as a substitute for platinum in 1887 by adding alloys to yellow gold, such as nickel, palladium, platinum, and zinc Patented in 1920 by the Belais brothers It was a cheaper alternative to platinum, but a stronger alternative to silver. Jennifer Sanchez Period 5 Due: 5/27/15 My Alloy: Interesting facts Cost of White Gold Mostly manufactured in jewelry Can be manufactured in medals, accessories, artwork etc. White gold is manufactured by alloying other metals with yellow gold. Most commercial alloys are zinc, silver, gold, nickel, and platinum produces the whitening or "bleaching" effect to gold Manufacturers avoid nickel white gold, since alloys made without nickel are less allergenic The price of White Gold depends on which metals have been used to make it. Palladium and platinum are the high value metals, if made with silver or nickle the value is much less Palladium white gold and strand white gold: Average $100-$1,000 Can range from $50-$2,500 Uses of White Gold White Gold White Gold Chemical Properties: Usually 90% gold 10% metal Copper sometimes added for improvement in malleability Nickel and palladium behave as primary bleaching for gold and the copper Rhodium metal plating gives it more color Chemical & Physical Properties
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