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How Do I Start a Collection of Modern Collectibles? Whether you're new to Precious Metals, or just new to APMEX, we're glad you are here. The resulting gold-platinum alloy would then be soft enough to shape with tools. Platinum hexafluoride is a strong oxidizer capable of oxidizing oxygen.  In 1924, the geologist Hans Merensky discovered a large supply of platinum in the Bushveld Igneous Complex in South Africa. What are High Relief and Ultra High Relief Coins? The 1909-S VDB Lincoln Cent – The King of Lincoln Cents, The 1916-D Mercury Dime – A Very Dangerous Dime, The 1937-D 3-Legged Buffalo Nickel – A Small Error in Very Large Demand. Platinum mining in South Africa, or mining for Platinum Group Metals (PGM), is widespread on the African continent. , Cisplatin, or cis-diamminedichloroplatinum(II) is the first of a series of square planar platinum(II)-containing chemotherapy drugs. During electrorefining of copper, noble metals such as silver, gold and the platinum-group metals as well as selenium and tellurium settle to the bottom of the cell as "anode mud", which forms the starting point for the extraction of the platinum-group metals.  Platinum(II,IV) oxide, Pt3O4, is formed in the following reaction: Unlike palladium acetate, platinum(II) acetate is not commercially available. These compounds are capable of crosslinking DNA, and kill cells by similar pathways to alkylating chemotherapeutic agents.  Compounds containing platinum, such as cisplatin, oxaliplatin and carboplatin, are applied in chemotherapy against certain types of cancer. How Household Items Can Ruin Your Precious Metals, A History of U.S. Mint Production Technology, Coins and Currency of the American Civil War, Precious Metals and Ancient Civilizations, The Story of the Pre-1933 Gold Double Eagle Coins, History of the Silver American Eagle Design. What are the Top 10 Platinum Coins for Investment? The rarity of Platinum cannot be overstated because it has a vast array of uses, particularly in industrial use, including catalytic converters, laboratory equipment and even dentistry equipment.  Brownrigg also made note of platinum's extremely high melting point and refractoriness toward borax. Platinum is much rarer than both Gold and Silver — so rare, in fact, that all of the Platinum ever mined could potentially fit into your home. Unlike gold, these metals derive much of their value from industrial uses. Miners extract only about 130 million tons of platinum from the ground annually compared to more than 1,700 tons of gold. , In 1865, chromites were identified in the Bushveld region of South Africa, followed by the discovery of platinum in 1906.  Its resistance to wear and tarnish is well suited to use in fine jewellery. Watson F. R. S", Historical Statistics for Mineral and Material Commodities in the United States, "2010 Minerals Yearbook; Platinum-group metals", "Platinum Metals: A Survey of Productive Resources to industrial Uses", "2014 Minerals Yearbook; Platinum-group metals", "Guide tothe Realization of the ITS-90 - Platinum Resistance Thermometry", International Committee for Weights and Measures, "Standard Reference Material 1750:Standard Platinum Resistance Thermometers,13.8033 K to 429.7485 K", "Professional Jeweler's Magazine Archives, issue of August 2004", "The state-of-play and future of platinum drugs", "Occupational Health Guideline for Soluble Platinum Salts (as Platinum)", "CDC – NIOSH Pocket Guide to Chemical Hazards – Platinum", "FDA Backgrounder on Platinum in Silicone Breast Implants", "187 Fake Cancer 'Cures' Consumers Should Avoid", NIOSH Pocket Guide to Chemical Hazards – Platinum, "A balanced historical account of the sequence of discoveries of platinum; illustrated", "Johnson Matthey Technology Review: A free, quarterly journal of research exploring science and technology in industrial applications (formerly published as Platinum Metals Review)", "Platinum-Group Metals Statistics and Information", "International Platinum Group Metals Association", https://en.wikipedia.org/w/index.php?title=Platinum&oldid=990854198, Short description is different from Wikidata, Wikipedia indefinitely move-protected pages, Wikipedia articles needing clarification from May 2014, Articles with Encyclopædia Britannica links, Wikipedia articles with SELIBR identifiers, Creative Commons Attribution-ShareAlike License, This page was last edited on 26 November 2020, at 21:54. After several months, Chabaneau succeeded in producing 23 kilograms of pure, malleable platinum by hammering and compressing the sponge form while white-hot. -As you can see by the chart above, platinum was worth more than gold for the vast majority of the 20th Century.It was not until the global financial crisis of 2008 that gold prices began to overtake platinum prices in terms of overall, now fully fiat US dollar valuations (Post-1971).- , Treatment of hexachloroplatinic acid with an ammonium salt, such as ammonium chloride, gives ammonium hexachloroplatinate, which is relatively insoluble in ammonium solutions. Ulloa and Juan found mines with the whitish metal nuggets and took them home to Spain.  The platinum used in such objects was not the pure element, but rather a naturally occurring mixture of the platinum group metals, with small amounts of palladium, rhodium, and iridium. Best answer. Although elemental platinum is generally unreactive, it dissolves in hot aqua regia to give aqueous chloroplatinic acid (H2PtCl6):, As a soft acid, platinum has a great affinity for sulfur, such as on dimethyl sulfoxide (DMSO); numerous DMSO complexes have been reported and care should be taken in the choice of reaction solvent. The platinum range, which features the Platinum Rare Haute-Rejuvenation Cream (A$2,270), Platinum Rare Haute-Rejuvenation Eye Cream (A$1,465) and Platinum Rare Cellular Night Elixir (A$1,865), is not only enchanting, but it’s also backed by weighty scientifically proven results too. Automotive demand is one of the biggest drivers of platinum prices. Until May 2019, the kilogram was defined as the mass of the international prototype of the kilogram, a cylinder of the same platinum-iridium alloy made in 1879.. The remaining 28.9 tonnes went to various other minor applications, such as medicine and biomedicine, glassmaking equipment, investment, electrodes, anticancer drugs, oxygen sensors, spark plugs and turbine engines. PtBiTe), antimonides (PdSb), and arsenides (e.g. ), the possibility that platinum could enter the body and cause adverse effects has merited study. He worked with the platinum by fusing it with arsenic, then later volatilizing the arsenic. Platinum is much rarer than both Gold and Silver — so rare, in fact, that all of the Platinum ever mined could potentially fit into your home. Platinum is one of the least reactive metals. , This article is about the chemical element. Gold prices are more stable in slow economic times, as gold is considered a safe haven. Although gold is also used in industrial applications, especially in electronics due to its use as a conductor, its demand is not so driven by industrial uses. Platinum is also used in the petroleum industry as a catalyst in a number of separate processes, but especially in catalytic reforming of straight-run naphthas into higher-octane gasoline that becomes rich in aromatic compounds. In the Sudbury Basin, the huge quantities of nickel ore processed make up for the fact platinum is present as only 0.5 ppm in the ore. , The first European reference to platinum appears in 1557 in the writings of the Italian humanist Julius Caesar Scaliger as a description of an unknown noble metal found between Darién and Mexico, "which no fire nor any Spanish artifice has yet been able to liquefy". , In 2007, Gerhard Ertl won the Nobel Prize in Chemistry for determining the detailed molecular mechanisms of the catalytic oxidation of carbon monoxide over platinum (catalytic converter). , From 1889 to 1960, the meter was defined as the length of a platinum-iridium (90:10) alloy bar, known as the international prototype of the meter. What Types of Coins are Good for New Collectors? Platinum is a naturally occurring chemical element that is actually about 30 times rarer than gold, according to Jenny Luker, president of Platinum Guild International USA (PGI), a marketing organization for the platinum jewelry industry.
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