Platinum Symbol

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Platin ist ein chemisches Element mit dem Elementsymbol Pt und der Ordnungszahl Es besitzt eine hohe Dichte und ist ein kostbares, schmiedbares, dehnbares, grau-weißes Übergangsmetall. Es besitzt eine bemerkenswerte Korrosionsbeständigkeit und. File:Platinum-symbol subsidiedakisolatie.nl ist eine vektorisierte Version dieses Bildes. Diese sollte an Stelle des Rasterbildes verwendet werden, sofern sie nicht schlechter ist. subsidiedakisolatie.nl ‎( × Pixel, Dateigröße: 4 KB, MIME-Typ: image/png). Im Medienbetrachter öffnenKonfiguration. Finden Sie perfekte Stock-Fotos zum Thema Platinum Symbol sowie redaktionelle Newsbilder von Getty Images. Wählen Sie aus erstklassigen Inhalten. Wählen Sie aus "platinum Symbol" Stock-Fotos. Laden Sie Platinum Pt chemical element. Platinum Sign Platinum symbol on a glass square. Übertragen.

Platinum Symbol

Wählen Sie aus "platinum Symbol" Stock-Fotos. Laden Sie Platinum Pt chemical element. Platinum Sign Platinum symbol on a glass square. Übertragen. Platin ist ein chemisches Element mit dem Elementsymbol Pt und der Ordnungszahl Es besitzt eine hohe Dichte und ist ein kostbares, schmiedbares, dehnbares, grau-weißes Übergangsmetall. Es besitzt eine bemerkenswerte Korrosionsbeständigkeit und. File:Platinum-symbol subsidiedakisolatie.nl ist eine vektorisierte Version dieses Bildes. Diese sollte an Stelle des Rasterbildes verwendet werden, sofern sie nicht schlechter ist.

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Diese sollte an Stelle des Rasterbildes verwendet werden, sofern sie nicht schlechter ist. Die nachfolgenden anderen Wikis verwenden diese Datei: Verwendung auf he. Klicke auf einen Zeitpunkt, um diese Version zu laden. Platinum Symbol

According to the Federal Trade Commission, in the United States, "Platinum" without additional qualifications can only be used to mark and describe rings made with at least parts pure platinum throughout.

Abbreviation marks for other PGMs include: "Plat. Hallmarks and maker's marks help identify the origin of antique and period platinum rings.

Hallmarks, also known as quality or purity marks, guarantee the purity or quality of a precious metal. They are expressed with numbers, symbols, letters or a combination thereof stamped, impressed or struck on platinum to indicate its fineness, according to Modern Silver Magazine.

English and French jewelry makers have used hallmarks since the 14th century, but American makers have never used them on platinum per se. French jewelry makers utilized the eagle head and dog head hallmarks for platinum after , when they formally recognized it as a precious metal.

Hallmarks may include maker's marks—the proprietary mark of a smith—expressed by a name or artistic mark stamped on the piece. According to the FTC, it is unlawful to use the word "platinum," or the names of any of the other PGM metals or their abbreviations, to describe a ring if the marking or description misrepresents the product's true composition.

Misleading marks include: using "Platinum," "Plat," or "Pt. Hernandez has covered real estate topics since She is a licensed real estate salesperson in San Diego since Her articles have appeared in community newspapers but her work is mostly online.

In the 18th century, platinum's rarity made King Louis XV of France declare it the only metal fit for a king. Platinum is used as an alloying agent for various metal products, including fine wires, noncorrosive laboratory containers, medical instruments, dental prostheses, electrical contacts, and thermocouples.

Platinum-cobalt, an alloy of roughly three parts platinum and one part cobalt, is used to make relatively strong permanent magnets.

Platinum's rarity as a metal has caused advertisers to associate it with exclusivity and wealth.

Platinum is considered a precious metal, although its use is not as common as the use of gold or silver. It was the first British crown to be made of this particular metal.

According to the Centers for Disease Control and Prevention , short-term exposure to platinum salts may cause irritation of the eyes, nose, and throat, and long-term exposure may cause both respiratory and skin allergies.

As platinum is a catalyst in the manufacture of the silicone rubber and gel components of several types of medical implants breast implants, joint replacement prosthetics, artificial lumbar discs, vascular access ports, etc.

The Food and Drug Administration and other institutions have reviewed the issue and found no evidence to suggest toxicity in vivo.

From Wikipedia, the free encyclopedia. This article is about the chemical element. For other uses, see Platinum disambiguation. Chemical element with atomic number See also: Platinum group.

Main article: Isotopes of platinum. Main articles: Platinum as an investment and Platinum coin. See also: Platinum album and Platinum color.

Chelated platinum Iron—platinum nanoparticle List of countries by platinum production Mixed metal oxide electrode Platinum group Platinum in Africa Platinum nanoparticle Platinum print s commodities boom.

Pure and Applied Chemistry. Online Etymology Dictionary. Retrieved 20 August Dalton Transactions. Chemistry Foundations and Applications.

Thomson Gale. Chaston, Platinum Metals Rev. Macmillan Journals Limited. Archived from the original on 24 March In Lide, David R. January Handbook of corrosion data.

Ammonium Hexachloroplatinate IV. Inorganic Syntheses. Angewandte Chemie International Edition. New Scientist. Encyclopaedia of Occupational Health and Safety: Chemical, industries and occupations.

International Labour Organization. ASTM International. Alaska Community Database Online. Archived from the original on 22 December Retrieved 12 April Minerals Engineering.

Grant Cawthorn Platinum Metals Review. Retrieved 24 December Kirk Othmer Encyclopedia of Chemical Technology. New York Times. Archived from the original on 3 February Retrieved 9 September July Archived PDF from the original on 7 July Retrieved 17 July The Hindu.

Chennai, India. Archived from the original on 6 December Meteorites: flux with time and impact effects. Greenwood Press. Journal of the American Chemical Society.

Inorganic Chemistry. Handbook of Inorganic Compounds. Bibcode : Natur. Inorganica Chimica Acta. Chemical Communications.

Solid State Sciences. Bibcode : SSSci Journal of Physical Chemistry C. Metal Ions in Life Sciences. Chemical Society Reviews.

Saux III 7 July Practical Oncology Protocols. Mill City Press, Incorporated. Archived from the original on 9 November Retrieved 11 June Ruhul; Razzaque, Mohammed S.

Cisplatin-Associated Nephrotoxicity and Pathological Events. Contributions to Nephrology. Hesse Jewelrymaking Through History: An Encyclopedia.

Greenwood Publishing Group. The Journal of Egyptian Archaeology. SAGE Publications. Scott and Warwick Bray Retrieved 5 November Hunt A History of Platinum and its Allied Metals.

Johnson Matthey Plc. Discovery of the Elements 7th ed. Journal of Chemical Education. The literary life of William Brownrigg. To which are added an account of the coal mines near Whitehaven: And Observations on the means of preventing epidemic fevers.

Watson F. S" PDF. Philosophical Transactions. Bibcode : RSPT Archived from the original PDF on 21 October Versuche mit dem neuen mineralischen Körper Platina del pinto genannt.

October Archived PDF from the original on 8 July Exploring Chemical Elements and their Compounds. TAB Books. Archived PDF from the original on 29 October Recovery of Platinum from Laboratory Residues.

Archived PDF from the original on 5 October Retrieved 4 October Archived PDF from the original on 18 August Retrieved 11 July Prentice Hall.

Fuel Cell System Explained. Metre Convention and Evolution of Base Units". Springer Series in Materials Science, Volume Springer Series in Materials Science.

Chemical Reviews. Archived from the original on 28 September Retrieved 19 June Diamond Cutters International. Archived from the original on 27 September Retrieved 18 June Archived from the original on 21 September The Speculative Invertor.

Archived from the original on 26 October Minerals Zone. Archived from the original on 12 October Archived from the original on 23 August Retrieved 14 July The London Platinum and Palladium Market.

Archived from the original on 25 January Retrieved 13 June Endocrine-Related Cancer. Society for Endocrinology. Journal of Professional Services Marketing.

Centers for Disease Control and Prevention. Archived PDF from the original on 11 March Archived from the original on 21 November Retrieved 21 November Food and Drug Administration.

Archived from the original on 24 July Archived from the original on 2 May Retrieved 20 May

They are expressed with numbers, symbols, letters or a combination thereof stamped, impressed or struck on platinum to indicate its fineness, according to Modern Silver Magazine.

English and French jewelry makers have used hallmarks since the 14th century, but American makers have never used them on platinum per se.

French jewelry makers utilized the eagle head and dog head hallmarks for platinum after , when they formally recognized it as a precious metal. Hallmarks may include maker's marks—the proprietary mark of a smith—expressed by a name or artistic mark stamped on the piece.

According to the FTC, it is unlawful to use the word "platinum," or the names of any of the other PGM metals or their abbreviations, to describe a ring if the marking or description misrepresents the product's true composition.

Misleading marks include: using "Platinum," "Plat," or "Pt. Hernandez has covered real estate topics since She is a licensed real estate salesperson in San Diego since Sometimes the metal was entirely incombustible, but when alloyed with osmium, it would volatilize.

This started what is known as the "platinum age" in Spain. Platinum, along with the rest of the platinum-group metals , is obtained commercially as a by-product from nickel and copper mining and processing.

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.

If pure platinum is found in placer deposits or other ores, it is isolated from them by various methods of subtracting impurities.

Because platinum is significantly denser than many of its impurities, the lighter impurities can be removed by simply floating them away in a liquid.

Platinum is paramagnetic , whereas nickel and iron are both ferromagnetic. These two impurities are thus removed by running an electromagnet over the mixture.

Because platinum has a higher melting point than most other substances, many impurities can be burned or melted away without melting the platinum.

Finally, platinum is resistant to hydrochloric and sulfuric acids, whereas other substances are readily attacked by them.

Metal impurities can be removed by stirring the mixture in either of the two acids and recovering the remaining platinum. One suitable method for purification for the raw platinum, which contains platinum, gold, and the other platinum-group metals, is to process it with aqua regia , in which palladium, gold and platinum are dissolved, whereas osmium, iridium, ruthenium and rhodium stay unreacted.

The gold is precipitated by the addition of iron II chloride and after filtering off the gold, the platinum is precipitated as ammonium chloroplatinate by the addition of ammonium chloride.

Ammonium chloroplatinate can be converted to platinum by heating. The remaining The most common use of platinum is as a catalyst in chemical reactions, often as platinum black.

It has been employed as a catalyst since the early 19th century, when platinum powder was used to catalyze the ignition of hydrogen. Its most important application is in automobiles as a catalytic converter , which allows the complete combustion of low concentrations of unburned hydrocarbons from the exhaust into carbon dioxide and water vapor.

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.

PtO 2 , also known as Adams' catalyst , is used as a hydrogenation catalyst, specifically for vegetable oils. From to , the meter was defined as the length of a platinum-iridium alloy bar, known as the international prototype of the meter.

The previous bar was made of platinum in Until May , the kilogram was defined as the mass of the international prototype of the kilogram , a cylinder of the same platinum-iridium alloy made in The standard hydrogen electrode also uses a platinized platinum electrode due to its corrosion resistance, and other attributes.

Coins, bars, and ingots are traded or collected. It is used for this purpose for its prestige and inherent bullion value. Jewellery trade publications advise jewellers to present minute surface scratches which they term patina as a desirable feature in attempt to enhance value of platinum products.

In watchmaking , Vacheron Constantin , Patek Philippe , Rolex , Breitling , and other companies use platinum for producing their limited edition watch series.

Watchmakers appreciate the unique properties of platinum, as it neither tarnishes nor wears out the latter quality relative to gold.

During periods of sustained economic stability and growth, the price of platinum tends to be as much as twice the price of gold, whereas during periods of economic uncertainty, [72] the price of platinum tends to decrease due to reduced industrial demand, falling below the price of gold.

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.

In the 18th century, platinum's rarity made King Louis XV of France declare it the only metal fit for a king.

Platinum is used as an alloying agent for various metal products, including fine wires, noncorrosive laboratory containers, medical instruments, dental prostheses, electrical contacts, and thermocouples.

Platinum-cobalt, an alloy of roughly three parts platinum and one part cobalt, is used to make relatively strong permanent magnets.

Platinum's rarity as a metal has caused advertisers to associate it with exclusivity and wealth. Platinum is considered a precious metal, although its use is not as common as the use of gold or silver.

It was the first British crown to be made of this particular metal. According to the Centers for Disease Control and Prevention , short-term exposure to platinum salts may cause irritation of the eyes, nose, and throat, and long-term exposure may cause both respiratory and skin allergies.

As platinum is a catalyst in the manufacture of the silicone rubber and gel components of several types of medical implants breast implants, joint replacement prosthetics, artificial lumbar discs, vascular access ports, etc.

The Food and Drug Administration and other institutions have reviewed the issue and found no evidence to suggest toxicity in vivo.

From Wikipedia, the free encyclopedia. This article is about the chemical element. For other uses, see Platinum disambiguation.

Chemical element with atomic number See also: Platinum group. Main article: Isotopes of platinum.

Main articles: Platinum as an investment and Platinum coin. See also: Platinum album and Platinum color. Chelated platinum Iron—platinum nanoparticle List of countries by platinum production Mixed metal oxide electrode Platinum group Platinum in Africa Platinum nanoparticle Platinum print s commodities boom.

Pure and Applied Chemistry. Online Etymology Dictionary. Retrieved 20 August Dalton Transactions. Chemistry Foundations and Applications.

Thomson Gale. Chaston, Platinum Metals Rev. Macmillan Journals Limited. Archived from the original on 24 March In Lide, David R.

January Handbook of corrosion data. Ammonium Hexachloroplatinate IV. Inorganic Syntheses. Angewandte Chemie International Edition.

New Scientist. Encyclopaedia of Occupational Health and Safety: Chemical, industries and occupations. International Labour Organization.

ASTM International. Alaska Community Database Online. Archived from the original on 22 December Retrieved 12 April Minerals Engineering.

Grant Cawthorn Platinum Metals Review. Retrieved 24 December Kirk Othmer Encyclopedia of Chemical Technology. New York Times. Archived from the original on 3 February Retrieved 9 September July Archived PDF from the original on 7 July Retrieved 17 July The Hindu.

Chennai, India. Archived from the original on 6 December Meteorites: flux with time and impact effects. Greenwood Press. Journal of the American Chemical Society.

Inorganic Chemistry. Handbook of Inorganic Compounds. Platinum is used in catalytic converters, laboratory equipment, electrical contacts and electrodes, platinum resistance thermometers, dentistry equipment, and jewelry.

Because only a few hundred tonnes are produced annually, it is a scarce material, and is highly valuable and is a major precious metal commodity.

Being a heavy metal, it leads to health issues upon exposure to its salts, but due to its corrosion resistance, it is not as toxic as some metals.

Compounds containing platinum, most notably cisplatin, are applied in chemotherapy against certain types of cancer. Graphical characteristics: Symmetric , Closed shape , Monochrome , Contains both straight and curved lines , Has no crossing lines.

Category: Alchemical Symbols. Platinum is part of the Mundane Elements group. Edit this symbol. Alchemical symbols, originally devised as part of alchemy, were used to denote some elements and some compounds until the 18th century.

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Platinum Symbol English: Alchemical symbol for platinum. Diese sollte an Stelle des Rasterbildes verwendet werden, sofern sie nicht schlechter ist. Drawn by Heron. Die nachfolgenden anderen Wikis verwenden diese Datei: Verwendung auf he. Weitergabe unter gleichen Bedingungen — Wenn du das Material wiedermischst, transformierst oder darauf aufbaust, musst du deine Beiträge unter der gleichen oder einer kompatiblen Lizenz Gala Poker das Original verbreiten.
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