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Topic: Platinum family


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In the News (Tue 1 Dec 09)

  
  Education about Platinum #1 Diamond Engagement Rings
Platinum is considered to be the most secure metal for gem settings because of its resistance to damage from corrosion, heat and chemical attack.
Platinum is the purest precious metal with an alloy of 90 percent or higher.
Rhodium, part of the platinum family, is a metal often used to plate silver, white gold and platinum to produce a brighter, harder finish.
www.1engagementrings.com /education/aboutPlatinum.html   (150 words)

  
  Platinum - Wikipedia, the free encyclopedia
The catalytic properties of the six platinum family metals are outstanding (a mixture of hydrogen and oxygen explodes in the presence of platinum).
Platinum was discovered by astronomer Antonio de Ulloa and Don Jorge Juan y Santacilia (1713-1773), both appointed by King Philip V to join a geographical expedition in Peru that lasted from 1735 to 1745.
Platinum is often found as native platinum and alloyed with iridium as platiniridium.
en.wikipedia.org /wiki/Platinum   (842 words)

  
 Platinum group -- Facts, Info, and Encyclopedia article   (Site not responding. Last check: 2007-11-04)
The platinum group or platinum family is a group of six (Any of several chemical elements that are usually shiny solids that conduct heat or electricity and can be formed into sheets etc.) metal (Violent or severe weather (viewed as caused by the action of the four elements)) elements with similar physical and chemical properties.
Platinum, platinum alloys, and iridium are used as crucible materials for the growth of single crystals, especially oxides.
Platinum is also produced commercially as a by-product of (A hard malleable ductile silvery metallic element that is resistant to corrosion; used in alloys; occurs in pentlandite and smaltite and garnierite and millerite) nickel ore processing.
www.absoluteastronomy.com /encyclopedia/p/pl/platinum_group.htm   (881 words)

  
 Platinum   (Site not responding. Last check: 2007-11-04)
Platinum is used in jewelry, laboratory equipment, electrical contacts, dentistry, and anti-pollution devices in automobiles.
Platinum is used extensively in jewelry, wire, in making crucibles for chemical use and for constructing high-temperature electric furnaces.
The chemical industry uses a significant amount of either platinum or a platinum-rhodium alloy catalyst in the form of gauze to catalyze the partial oxidation of ammonia to yield nitric oxide, which is the raw material for fertilizers, explosives, and nitric acid.
www.bidprobe.com /en/wikipedia/p/pl/platinum.html   (959 words)

  
 Kerik Kouklis - Platinum Printing   (Site not responding. Last check: 2007-11-04)
Commercially produced platinum printing papers first became available in the 1880's and by the turn of the century platinum prints were very popular, valued for their beauty and their intrinsic permanence.
Platinum and palladium are two of the most inert elements in existence which contributes greatly to the extreme archival stability of platinum prints.
The platinum particles are embedded within the fibers of the paper which results in an image that is as permanent as the paper itself.
members.aol.com /Kerik717/ptprnt.htm   (364 words)

  
 Platinum - Open Encyclopedia   (Site not responding. Last check: 2007-11-04)
Platinum is also a certification by the RIAA and other world recording industries, see: RIAA certification
The alchemical symbol for platinum (shown on the right) was made by joining the symbols of silver and gold.
A platinum-iridium cylinder serves to this day as the standard of the kilogram and is housed in the same facility as the meter bar.
open-encyclopedia.com /Platinum   (1003 words)

  
 Precious Metals - Learning Center from Gemdreamz.com
The catalytic properties of the six platinum family metals are outstanding (a mixture of hydrogen and oxygen explodes in the presence of platinum).
Platinum is often found free in areas of the Americas and alloyed with iridium as platiniridium.
Platinum is used to coat missile nose cones, jet engine fuel nozzles and other devices that must operate reliably for long periods of time at high temperatures.
www.gemdreamz.com /jewelry_learn_platinum_about.php   (1023 words)

  
 Platinum Bands | Platinum Engagement Ring Setting | Platinum Band | Platinum Chain
Platinum is also the only precious metal used in fine jewelry that is up to 95 percent pure.
Platinum reached its peak of popularity in the early 1900s, when it was the preferred metal for all fine jewelry in America.
When judging the value of platinum jewelry, always ensure that the material is indeed platinum (and not another metal, such as white gold) by checking for the amount of platinum content on the back of the piece.
jewelplus.com /material_platinum.html   (943 words)

  
 Article7
For this reason, platinum is sometimes used for prongs even when the remainder of the piece is made of white gold, especially when the stones have high sentimental or monetary value.
Platinum was the setting of choice for wedding rings during the early 1900s, and its popularity is soaring again in the United States.
Platinum is especially fashionable among brides to showcase engagement diamonds.
www.altobelli.com /html/article_7.html   (391 words)

  
 Rings Platinum   (Site not responding. Last check: 2007-11-04)
Could never have guessed some of these stuff have platinum "Platinum's use in the manufacture of silicones has grown over the last few years and now accounts for the largest proportion of chemical demand for platinum.
In the city the population is spread out with 26.8% under the age of 18, 2.4% from 18 to 24, 43.9% from 25 to 44, 17.1% from 45 to 64, and 9.8% who are 65 years of age or older.
The median income for a household in the city is $21,250, and the median income for a family is $22,500.
www.blownspeakers.com /pages3/76/rings-platinum.html   (864 words)

  
 Platinum
Platinum is the most abundant of a family of six heavy metals, all very similar to one another, and they are always found together.
Platinum sponge is said to be made by heating ammonium chloroplatinate, and platinum fl by reducing chloroplatinic acid solution with zinc.
Platinum is not mentioned anywhere, except to say that palladium was used when the price of platinum rose; this would be of no importance if the prints contained no platinum.
www.du.edu /~jcalvert/phys/platinum.htm   (2653 words)

  
 Shaun's NATS101 Website   (Site not responding. Last check: 2007-11-04)
Platinum is also used in spark plugs for various internal combustion engines because of its conductive properties.
Because platinum is a mineral that is used on a large scale, its formation is very important in regards to mining.
Interestingly enough almost all of the platinum family is recovered from copper and nickel sulfide minerals.
www.u.arizona.edu /~stk1/lab4.html   (905 words)

  
 Recycle Platinum - America's Buyers of Industrial Platinum for Refining and Reuse
Platinum is not affected by the oxidizing reaction of blood, has excellent conductivity, and is compatible with living tissue, so it's used in pacemakers.
Platinum then disappears for hundreds of years, only to be re-discovered and discarded by the Spanish conquistadores, who were gold-hungry and thought the white metal to be an inferior type of silver.
Platinum and palladium have the greatest economic importance and are found in the largest quantities.
www.recycleplatinum.com /Platinum-Education.asp   (1548 words)

  
 Fotiny&Co
Platinum is a very pure metal, and it is also hypoallergenic.
Platinum is a wonderful solution for people who suffer allergic reactions to certain metals.
Platinum is a preferred metal for holding stones most securely in place.
www.gsplatinum.com /platinum.htm   (379 words)

  
 alchemy printmaking and photography -the platinotype
First is the inertness of the platinum family of metals; platinum, palladium, iridium, rhodium, and osmium.
Because the liquid platinum emulsion is brushed directly onto the paper and sinks in, rather than being held captive in a thin layer of gelatin on top of the paper, the image itself has physical depth, creating a three-dimensional quality to the print.
The platinum print belongs to the family of iron processes, where iron is the light sensitive agent and the platinum is along for the ride, until development.
www.johnrudiak.com /a_platinotype2.html   (478 words)

  
 Country Living--Printer friendly version
Photographer Alfred Stieglitz (1864-1946) called the platinum printing process "the prince of all media." The technique takes its name from the salts in the platinum family of metals -- platinum, palladium, and iridium, to name a few -- that are present in the light-sensitive emulsion that coats the paper.
Precoated platinum paper was available from 1880 until the early 1930's, when paper coated with an emulsion containing silver salts (the industry standard to this day) became more cost effective.
The market for platinum prints is closely linked to the overall state of the photography market, which is enjoying the strongest decade in its history.
magazines.ivillage.com /countryliving/print/0,,293942,00.html   (735 words)

  
 Press Information   (Site not responding. Last check: 2007-11-04)
Platinum lineup expands with introduction of 27-footer and 23-footer with slideout.
The Platinum 230, introduced in 2000, is a 23-foot Class C motorhome featuring a patented seamless fiberglass body.
The Platinum 270 is available in two floor plans, one featuring twin beds on either side of the aisle, the other featuring two power sofas, each of which folds down to form a double bed.
www.coachhouserv.com /press.html   (1822 words)

  
 Family Watchdog; Platinum Studios :: Family Watchdog and Platinum Studios Launch National Sex Offender Search, ...   (Site not responding. Last check: 2007-11-04)
Family Watchdog users are able to conduct searches to view information about where registered sexual offenders live and work, view photos, review conviction details and other important data.
Platinum Studios is an entertainment company that controls the world's largest independent library of comic book characters, which it adapts and produces for all forms of media.
Family Watchdog donates 10% of their gross revenues to the Family Watchdog Foundation every year to promote family safety awareness and education.
sev.prnewswire.com /computer-electronics/20061207/LATH01107122006-1.html   (598 words)

  
 Press . . . First Family . . . Platinum Studios, LLC,   (Site not responding. Last check: 2007-11-04)
Among the concepts in development are "Meet the Haunteds," a series of graphic novels about a white family who move into an old mansion haunted by the ghosts of a fl family.
Platinum and First Family also are behind "Spaced," based on the comic created by Rob Moran.
Platinum's pact with First Family comes soon after the comicbook company acquired film and TV rights from indie comics publisher Top Cow Prods.
platinumstudios.com /first_family/variety.php   (334 words)

  
 Density of Platinum
The platinum family metals, consisting of ruthenium, rhodium, palladium, osmium, iridium, and platinum, are transition metals characteristically known for their strong interatomic bonds and high density.
The character and strength of these bonds are what determine the crystalline structure and physical properties platinum is most known for-malleable, ductile, corrosion-resistant, high boiling and melting points, stable electrical properties, does not oxidize in air at any temperature, and is insoluble in hydrochloric and nitric acid.
However, platinum is often found with small quantities of other platinum family metals in deposits in Columbia, Ontario, the Ural Mountains, and in certain western US states.
hypertextbook.com /facts/2004/OliviaTai.shtml   (380 words)

  
 Untitled   (Site not responding. Last check: 2007-11-04)
"Platinum Metals Review" is the name of a magazine published quarterly by the Johnson Matthey company, an international organization with headquarters in London, England.
Today's Science Corner is taken from a historical article on the discovery of the metal iridium, which is one of the platinum family of precious metals.
The property of high*strength at elevated temperatures makes iridium today the metal of choice for encapsulating the nuclear)powered electrical generators of unmanned spacecraft where temperatures of 2,000 degrees C and impacts from meteorites are hazards that must be encountered.
www.physics.uoguelph.ca /summer/scor/articles/scor150.htm   (642 words)

  
 Znews.com™ | NetGear Unveils New Platinum Home Networking Solutions
These first members of the new NetGear Platinum Family make it dramatically easier for anyone to set-up a home network and come in a stylish new platinum color design that looks good in any room in the house.
The switches, as with the entire Platinum Family, are stackable or can be placed upright in the stand provided, fitting nicely with the other members of the NetGear Platinum Family while providing efficient use of space.
The NetGear Platinum Family of networking solutions is designed to be an important part of the emerging digital home whose family members share broadband Internet access for communication, productivity, as well as entertainment, and connect to the network in many different ways on many different devices throughout the house.
www.znews.com /tech/news/2002052203technews.html   (494 words)

  
 Platinum Pools
When I started Platinum Pools I wanted to build a swimming pool that people could enjoy and not have to spend all their time working on.
When we build a swimming pool we remember one thing: you as a consumer may not know that much about a pool, except that it is a hole in the ground with water.
When Platinum builds a pool, we build it right the first time, with the hydraulics, maintenance and safety in mind.
www.platinumpools.com /about.htm   (455 words)

  
 Pure Platinum, Rare Platinum, Eternal Platinum Jewelry, Value of Platinum Jewelry
Platinum product sold in the US is 90-95% pure platinum and is a naturally white metal.
And because platinum is alloyed with other precious metals from the platinum family, maintaining its purity, platinum is hypoallergenic.
Platinum is that special something that is rare, distinctive and timeless and yet is an accessible luxury for those who desire it.
www.juliesjewels.com /platinum_pure_eternal.htm   (416 words)

  
 Platinum   (Site not responding. Last check: 2007-11-04)
} Platinum is a chemical element in the periodic table that has the symbol Pt and atomic number 78.
The name platinum mainly derives from the Spanish platina meaning "little silver".
The Anglo Platinum Group (http://www.angloplatinum.com) is the world's leading primary producer of platinum group metals from its South African mines.
www.worldhistory.com /wiki/P/Platinum.htm   (798 words)

  
 Universal Hype About   (Site not responding. Last check: 2007-11-04)
From there Platinum closed a deal to bring their spark of entertainment to City Nights in San Francisco.
In 1999/2001 the Platinum Family wanted to form something for the 21 and over crowd.
With the alliance of Legend and Platinum, a west coast family was formed.
www.uhype.com /about.htm   (1255 words)

  
 Linotype Font Keywords - Platinum Fonts
A font family is a collection of corresponding font weights.
With the listing selected "Display as Font Family" the result list is short and supplies a quick overview.
A font weight is the smallest element of a font family with a set of characters of identical stroke thickness, width or design characteristics.
www.linotype.com /keyword/platinum.html   (175 words)

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