Platinum It Solutions Ltd.

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24 St Cuthberts Way
Holystone
Newcastle Upon Tyne
NE27 0UZ

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platinum

1. Chem.a heavy, grayish-white, highly malleable and ductile metallic element, resistant to most chemicals, practically unoxidizable except in the presence of bases, and fusible only at extremely high temperatures: used for making chemical and scientific apparatus, as a catalyst in the oxidation of ammonia to nitric acid, and in jewelry. Symbol: Pt; at. wt.: 195.09; at. no.: 78; sp. gr.: 21.5 at 20°C.
2. a light, metallic gray with very slight bluish tinge when compared with silver. .
1. made of platinum.
2. Music Slang. having sold a minimum of two million single records or one million LPs.
platinum , metallic chemical element; symbol Pt; at. no. 78; at. wt. 195.08; m.p. 1,772°C; b.p. 3,827±100°C; sp. gr. 21.45 at 20°C; valence +2 or +4. Pure platinum is a malleable, ductile, lustrous, silver-white metal with a face-centered cubic crystalline structure. Chemically inactive, it is unaffected by common acids but dissolves in aqua regia, forming chloroplatinic acid . It is attacked by the halogens, sulfur, or caustic alkalies. It does not combine with oxygen even at high temperatures. Like palladium, it absorbs large quantities of hydrogen, which it releases at red heat.

Platinum is found in nature alloyed with the other metals of the so-called platinum group, found in Group 10 of the periodic table; the other five metals in this group are iridium, osmium, palladium, rhodium, and ruthenium. These metals are found in alluvial deposits in Russia, South Africa, Colombia, and Alaska. Platinum and the related metals are recovered commercially as a byproduct of the refining of nickel ores mined near Sudbury, Ont., Canada; from gold mines in South Africa; and from the alluvial deposits in Russia. There is no routine method for separating platinum from other metals; it is usually recovered by complex chemical methods.

Platinum has many uses. Its wear- and tarnish-resistance characteristics are well-suited for making fine jewelry. Platinum and its alloys are used in surgical tools, laboratory utensils, electrical resistance wires, and electrical contact points. The most important of the alloys are those with iridium. The International Prototype Kilogram, kept at Sèvres, France, is a cylinder of platinum-iridium alloy, and the standard definition of a meter for a long time was based on the distance between two marks on a bar of platinum-iridium. Platinum is also used in the definition of the Standard Hydrogen Electrode . Because its thermal coefficient of expansion is nearly equal to that of glass, platinum is used to make electrodes sealed in glass. It is used extensively in dentistry and a platinum-osmium alloy is used in implants such as pacemakers and replacement valves. A platinum-cobalt alloy is used to make very powerful magnets.

solutions

1. the act of solving a problem, question, etc.: The situation is reaching a solution.
2. the state of being solved: a problem capable of solution.
3. a particular instance or method of solving; an explanation or answer: This solutions as good as any other.
1. solution, mixture
usage: a homogeneous mixture of two or more substances; frequently a liquid solution; "he used a solution of peroxide and water"
2. solution, answer, result, resolution, solvent, statement
usage: a statement that solves a problem or explains how to solve the problem; "they were trying to find a peaceful solution"; "the answers were in the back of the book"; "he computed the result to four decimal places"
3. solution, method
usage: a method for solving a problem; "the easy solution is to look it up in the handbook"
4. solution, root, set
usage: the set of values that give a true statement when substituted into an equation
5. solution, success
usage: the successful action of solving a problem; "the solution took three hours"
In most common solutions, the solvent is a liquid, often water, and the solute may be a solid, gas, or liquid. For example, syrups are solutions of sugar, a solid, in water, a liquid; household ammonia is a solution of ammonia gas in water; and vinegar is a solution of acetic acid, a liquid, in water. When two liquids, e.g., water and ethanol, can be mixed in any proportions, the solvent is commonly considered to be the one present in greater proportion. Some alloys are solutions of one solid in another, as are many rocks. A mixture of gases, such as air, is usually not thought of as a solution.

newcastle upon tyne

Newcastle upon Tyne is a city and metropolitan borough of Tyne and Wear, in North East England. Situated on the north bank of the River Tyne, the city developed in the area that was the location of the Roman settlement called Pons Aelius, though it owes its name to the castle built in 1080, by Robert II, Duke of Normandy, the eldest son of William the Conqueror. The city grew as an important centre for the wool trade and it later became a major coal mining area. The port developed in the 16th century and, along with the shipyards lower down the river, was amongst the world''s largest shipbuilding and ship-repairing centres. These industries have since experienced severe decline and closure, and the city today is largely a business and cultural centre, with a particular reputation for nightlife.

Like most cities, Newcastle has a diverse cross section, from areas of poverty to areas of affluence. Among its main icons are Newcastle Brown Ale, a leading brand of beer, Newcastle United F.C., a Premier League team, and the Tyne Bridge. It has hosted the world''s most popular half marathon, the Great North Run, since it began in 1981.