DiseasesChemicals and DrugsAnalytical, Diagnostic and Therapeutic Techniques and EquipmentPhenomena and ProcessesDisciplines and OccupationsTechnology, Industry, AgricultureNamed GroupsHealth Care
PalladiumMiningPlatinum CompoundsOrganic Chemistry ProcessesAlkenesPhosphinesCatalysisOrganoplatinum CompoundsRhodiumPlatinumOrganometallic CompoundsCyclizationCisplatinChemistry, OrganicMolecular StructureCoordination ComplexesStereoisomerismAminationSiloxanes2,2'-DipyridylHydrocarbons, AromaticBoratesRecyclingCarboplatinOxidative CouplingAllyl CompoundsAlkynesChlorobenzenesSulfanilic AcidsIridiumBoronAntineoplastic AgentsCetylpyridiniumElectroplatingDental StaffLewis AcidsKetonesOvarian NeoplasmsAminesElectrodesTransition ElementsHydrocarbons, HalogenatedSpectrophotometry, AtomicAmmonium HydroxideHeterocyclic CompoundsHalogenationBromides
OsmiumRutheniumPGMsAlloysMetalsNickelCatalytic propertiesCruciblesWollastonSouth AfricaSaltsPreciousDepositsCharacteristicsDiamondsRarestCatalystSyntheticRarityLittle silverWorld'sTarnishIsotopesFoundGoldCompoundsJewelleryNitric acidJewelryPeriodicConsiderablePropertiesElementsSilverAtomicPureFamilySourcePrimary
Osmium8
Ruthenium1
  • Ruthenium is one of the most effective hardeners for platinum and palladium and forms alloys with these metals to make electrical contacts and chip resistors with severe wear resistance. (ftmmachinery.com)
PGMs6
  • The platinum-group metals (PGMs), also known as the platinoids, platinides, platidises, platinum group, platinum metals, platinum family or platinum-group elements (PGEs), are six noble, precious metallic elements clustered together in the periodic table. (wikipedia.org)
  • 230 Typical ores for PGMs contain ca. 10 g PGM/ton ore, thus the identity of the particular mineral is unknown. (wikipedia.org)
  • In this survey we concentrate on the firm's formative years and, while highlighting its activities with platinum group metals (pgms), include some of Johnson Matthey's considerable recent non‐pgm activities. (matthey.com)
  • Ore deposits of palladium and other PGMs are rare, and the most extensive deposits have been found in the norite belt of the Bushveld Igneous Complex covering the Transvaal Basin in South Africa, the Stillwater Complex in Montana, United States, the Thunder Bay District of Ontario, Canada, and the Norilsk Complex in Russia. (hunter-jewellers.com.au)
  • The end goal and purpose of this final thesis is to describe the various attributes, methods of preparation and usage of platinum group metals (PGMs), as well as to examine their discovery, history, mining circumstances, and compounds they build in closer detail. (unios.hr)
  • As the most recognized metal among the platinum group metals, the widespread use of platinum has also revealed the mystery of platinum group metals (PGMs). (ftmmachinery.com)
Alloys5
  • Naturally occurring platinum and platinum-rich alloys were known by pre-Columbian Americans for many years. (wikipedia.org)
  • Platinum can occur as a native metal, but it can also occur in various different minerals and alloys. (wikipedia.org)
  • William Cock was a considerable chemist and metallurgist, devising a new procedure for increasing the malleability of platinum, and published 'On Palladium - Its Extraction, Alloys &c.' ( 15 , 16 ) in one of the earliest of the Chemical Society's papers. (matthey.com)
  • Right here at Cooksongold we use the the best quality alloys for our castings together with Silver, Platinum and 9 or 18ct Purple, Yellow and White Gold. (indiansareeshop.com)
  • It also has a high melting point (albeit the lowest of all platinum group metals) and resistance to deformation, which is useful for strengthening alloys. (ftmmachinery.com)
Metals19
  • The platinum metals have many useful catalytic properties. (wikipedia.org)
  • Apart from their application in jewellery, platinum metals are also used in anticancer drugs, industries, dentistry, electronics, and vehicle exhaust catalysts (VECs). (wikipedia.org)
  • Platinum in a native state, often accompanied by small amounts of other platinum metals, is found in alluvial and placer deposits in Colombia, Ontario, the Ural Mountains, and in certain western American states. (wikipedia.org)
  • Even though the quantity of platinum metals found in these ores is small, the large volume of nickel ores processed makes commercial recovery possible. (wikipedia.org)
  • Metallic iridium is found with platinum and other platinum group metals in alluvial deposits. (wikipedia.org)
  • Gold, silver, and platinum are the most commonly used jewelry metals. (gemsociety.org)
  • However, three jewelry metals have withstood the test of time and continue to have a strong presence in modern jewelry: gold, silver, and platinum. (gemsociety.org)
  • For all these reasons, the trio of gold, silver, and platinum continue to enjoy considerable popularity as jewelry metals. (gemsociety.org)
  • Thirty-five years ago a magisterial volume was published by Johnson Matthey on "A History of Platinum and its Allied Metals", but despite its title that book is also a history of the firm itself from 1817 to 1982 ( 1 ). (matthey.com)
  • many aspects of the story have also been chronicled by Platinum Metals Review and its 2014 successor, the Johnson Matthey Technology Review . (matthey.com)
  • A Platinum Metals Review paper marking the firm's sesquicentenary was published in 1967 ( 2 ), and a recent paper notes that Johnson Matthey is one of the oldest British chemical firms still in existence ( 3 ). (matthey.com)
  • His grandfather John Johnson (1737-1786) had since 1777 been an assayer of ores and metals, mostly silver, gold and some base metals, at No. 7, Maiden Lane (now part of Gresham Street between Wood Street and Foster Lane, London EC2). (matthey.com)
  • Around 1800 he became involved with the rapidly developing platinum metals industry, using crude 'platina' smuggled to Britain via Jamaica from what is now Colombia. (matthey.com)
  • Platinum is the rarest, and most valuable of all the precious metals. (hunter-jewellers.com.au)
  • One of the strongest metals used in jewellery, Platinum will endure through all uses. (hunter-jewellers.com.au)
  • The reason why platinum is today the most valuable of precious metals is because it is required in many industrial applications. (totalmateria.com)
  • Jasmine Cui, NBC News , 5 Nov. 2023 The devices contain precious metals such as palladium, platinum and rhodium in their cores and are often targeted by thieves because of their high value, lack of identifying markings and relative ease of theft. (merriam-webster.com)
  • 2023 They are stolen because the metals in them - rhodium , palladium and platinum - are highly valuable and worth thousands of dollars, according to the National Insurance Crime Bureau. (merriam-webster.com)
  • Jordan Mendoza, USA TODAY , 16 Feb. 2023 Thieves are after what's inside of catalytic converters - platinum, rhodium , and palladium, rare earth metals that are more valuable than gold, according to the nonprofit. (merriam-webster.com)
Nickel5
  • Platinum is also produced commercially as a by-product of nickel ore processing. (wikipedia.org)
  • The huge quantities of nickel ore processed makes up for the fact that platinum makes up only two parts per million of the ore. (wikipedia.org)
  • It occurs in some nickel and copper ores along with some native deposits, mostly in South Africa, which accounts for 80% of the world production. (hunter-jewellers.com.au)
  • A dense, malleable, ductile, precious, gray-white transition metal, platinum is resistant to corrosion and occurs in some nickel and copper ores along with some native deposits. (totalmateria.com)
  • Iridium has better X-ray reflectivity than nickel, gold, and platinum, so it is also used in X-ray telescopes. (ftmmachinery.com)
Catalytic properties1
  • Palladium has excellent catalytic properties like platinum , so it can be used as a replacement for the more expensive platinum in catalytic converters. (ftmmachinery.com)
Crucibles1
  • In the glass industry, platinum crucibles are used to melt and process molten optical instruments and special-purpose glass. (ftmmachinery.com)
Wollaston1
  • His biggest early customer was probably William Hyde Wollaston (1766-1826) ( 6 ), who made many purchases of platina between 1802-1819 from Johnson. (matthey.com)
South Africa2
  • South Africa, with vast platinum ore deposits in the Merensky Reef of the Bushveld complex, is the world's largest producer of platinum, followed by Russia. (wikipedia.org)
  • Leaders of primary platinum production are South Africa and Russia, followed by Canada, Zimbabwe and USA. (wikipedia.org)
Salts1
  • Palladium, known as the most corrosion-resistant pure metal, is resistant to salts, oxides, and inorganic acids, but is affected by sodium chloride and sodium cyanide. (ftmmachinery.com)
Precious2
Deposits1
  • Mafic layered intrusions, including the Bushveld Complex, outweigh by far all other geological settings of platinum deposits. (wikipedia.org)
Characteristics2
  • Platinum possesses high resistance to chemical attack, excellent high-temperature characteristics, and stable electrical properties. (totalmateria.com)
  • Not only do they share similarities in their characteristics, but they are also found together in ores, so that their discovery in mines, preparation and refinement are also tightly linked together. (unios.hr)
Diamonds1
  • Engagement ring with marquise and pear-shaped diamonds in platinum settings, with accompanying gold wedding band, by Lorraine Hughes , Dot The Jewellers . (gemsociety.org)
Rarest1
Catalyst1
Synthetic1
  • Platinum also has 31 synthetic isotopes ranging in atomic mass from 166 to 202, making the total number of known isotopes 37. (totalmateria.com)
Rarity2
Little silver1
  • The name platinum is derived from the Spanish word platina "little silver", the name given to the metal by Spanish settlers in Colombia. (wikipedia.org)
World's1
Tarnish2
  • They are highly resistant to wear and tarnish, making platinum, in particular, well suited for fine jewellery. (wikipedia.org)
  • This rich purity makes Platinum hypoallergenic, and its natural white colour will not tarnish or lose its lustre. (hunter-jewellers.com.au)
Isotopes1
Found2
Gold4
  • In 1812, aged only 19, he established his scientific credentials in a paper showing that platinum alloyed with silver and gold would dissolve in nitric acid ( 10 , 11 ). (matthey.com)
  • Moreover, in comparison to gold or platinum, silver is extra inexpensive and extra ample. (indiansareeshop.com)
  • Its ease in amalgamating with gold is made use of in the recovery of gold from its ores. (wordquests.info)
  • Apart from gold and silver, the most frequently mentioned noble metal in everyday life is platinum. (ftmmachinery.com)
Compounds1
Jewellery1
  • Platinum jewellery contains more fine metal than most other jewellery, being at least 95% pure. (hunter-jewellers.com.au)
Nitric acid1
  • Platinum is insoluble in hydrochloric and nitric acid, but dissolves in aqua regia to form chloroplatinic acid, H 2 PtCl 6 . (totalmateria.com)
Jewelry3
  • Among all the known modern uses of platinum, most of the annual production is consumed by two dominant categories - catalytic converters and fine jewelry. (totalmateria.com)
  • Platinum is very popular in the jewelry industry, and platinum is often used in engagement rings to express the innocence and longevity of love. (ftmmachinery.com)
  • Palladium is also used in jewelry, although it is not as popular as platinum. (ftmmachinery.com)
Periodic2
Considerable1
Properties1
Elements2
  • However, they can be further subdivided into the iridium-group platinum-group elements (IPGEs: Os, Ir, Ru) and the palladium-group platinum-group elements (PPGEs: Rh, Pt, Pd) based on their behaviour in geological systems. (wikipedia.org)
  • Chemical Elements words: mercury to platinum, part 5 of 8. (wordquests.info)
Silver1
Atomic1
Pure1
  • Platinum is a beautiful silvery-white metal, when pure, and is malleable and ductile. (totalmateria.com)
Family1
Source1
  • That said, Sperrylite (platinum arsenide, PtAs2) ore is by far the most significant source of this metal. (wikipedia.org)
Primary1
  • Mafic and ultramafic igneous rocks host practically all primary PGM ore of the world. (wikipedia.org)