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English: This chart shows the nominal price of gold along with the price in 1971 and 2011 dollars (adjusted based on the consumer price index). The historical gold price was obtained from www.igolder.com; CPI was obtained from www.rateinflation.com. The data is in section Chart Data.
Listed here are mainly average market prices for bulk trade of commodities. Data on elements' abundance in Earth's crust is added for comparison. As of 2020, the most expensive non-synthetic element by both mass and volume is rhodium. It is followed by caesium, iridium and palladium by mass and iridium, gold and platinum by volume.
Pink gold uses the least copper, followed by rose gold, with red gold having the highest copper content. Examples of the common alloys for 18K rose gold, 18K red gold, 18K pink gold, and 12K red gold include: [4] 18K red gold: 75% gold, 25% copper; 18K rose gold: 75% gold, 22.25% copper, 2.75% silver; 18K pink gold: 75% gold, 20% copper, 5% silver
Gold(III) oxide (Au 2 O 3) is an inorganic compound of gold and oxygen with the formula Au 2 O 3.It is a red-brown solid that decomposes at 298 °C. [3]According to X-ray crystallography, Au 2 O 3 features square planar gold centers with both 2- and 3-coordinated oxides.
The standard redox potential of sodium persulfate into hydrogen sulfate is 2.1 V, which is higher than that of hydrogen peroxide (1.8 V) but lower than ozone (2.2 V). [4] The sulfate radical formed in situ has a standard electrode potential of 2.7 V.
The company was founded in 1983 as Yilgangi Gold NL. The company took on the Lynas Gold N.L. name in 1985. [1] It became publicly listed in 1986 on the ASX. In 2001, it sold off its gold division and focused on rare earths. [1] Lynas was founded by the Sumich family of Perth, Western Australia.