Word Finder - platinum

definition

The chemical element with atomic number 78 and symbol Pt; a dense, malleable, ductile, highly unreactive, silverish-white transition metal of great value.

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A whitish grey colour, like that of the metal.

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A single or album that has achieved platinum sales, i.e. over 1 million or 2 million.

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To reach platinum level in a game

example

I platinumed in Clash of Clans yesterday.

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Of a whitish grey colour, like that of the metal.

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Of a musical recording that has sold over one million copies (for singles), or two million (for albums).

Where was platinum, palladium, scandium, coal or peanuts slacking off?

Yes. It was a platinum card.

The gangly youth before him had dyed his hair from platinum back to its natural color of black.

He opened the box to reveal a man's platinum signet ring with the half-moon, half-sun, and arrow symbol neatly carved on its head.

This plate is supported by a platinum wire sealed through the glass.

In it the electrodes were of platinum and carbon.

Vauquelin in 1797, and Klaproth's investigation of tellurium in 1798, the next important series of observations was concerned with platinum and the allied metals.

The platinum strips are exceedingly minute, being in some cases only 2 5 p in.

Another steel containing 45% of nickel has, like platinum, the same coefficient of expansion as glass.

In the alluvial deposits the associated minerals are chiefly those of great density and hardness, such as platinum, osmiridium and other metals of the platinum group, tinstone, chromic, magnetic and brown iron ores, diamond, ruby and sapphire, zircon, topaz, garnet, &c. which represent the more durable original constituents of the rocks whose distintegration has furnished the detritus.

In this meter the electrolyte is a solution of mercurous nitrate which is completely enclosed in a glass tube of a particular form, having a mercury anode and a platinum or carbon cathode.

The rotation of the mercury is detected and measured by means of a small vane of platinum wire immersed in it, the shaft of this vane being connected by an endless screw with a counting mechanism.

Edison in the United States, were engaged in struggling with the difficulties of producing a suitable carbon incandescence electric lamp. Edison constructed in 1879 a successful lamp of this type consisting of a vessel wholly of glass containing a carbon filament made by carbonizing paper or some other carbonizable material, the vessel being exhausted and the current led into the filament through platinum wires.

Platinum locks will turn heads, while a dark ravine hue will add an aura of mystery.

Platinum locks look very cool with chunky lowlights weaved in.

Today, Heidi Klum wears a modern platinum blonde shag on Project Runway.

Boron nitride BN is formed when boron is burned either in air or in nitrogen, but can be obtained more readily by heating to redness in a platinum crucible a mixture of one part of anhydrous borax with two parts of dry ammonium chloride.

Platinum and the allied compound metal iridosmine have been found in New South Wales, but so far in inconsiderable quantities.

For example, if vapours of the volatile metals cadmium, zinc and magnesium are allowed to act on platinum or palladium, alloys are produced.

To prepare the cadmium amalgam, one part of pure cadmium is dissolved in six parts of pure mercury, and the product while warm and fluid is placed in one limb of the cell and warmed, to ensure perfect contact with the platinum wire.

In addition to varied hair color, a solid color in a vibrant shade such as platinum, scarlet, or shiny ebony will enhance the bob shape while adding an inarguable level of sophistication.

In batteries which use acids as the electrolyte, a film of hydrogen tends to be deposited on the copper or platinum electrode; but, to obtain a constant electromotive force, several means were soon devised of preventing the formation of the film.

It is found that the most accurate and convenient apparatus to use is a platinum bowl filled with a solution of silver nitrate containing about fifteen parts of the salt to one hundred of water.

Hittorf showed that when a current was passed through a solution of sodium platino-chloride, the platinum appeared at the anode.

The salt must therefore be derived from an acid, chloroplatinic acid, H 2 PtC1 6, and have the formula Na 2 PtC1 6, the ions being Na and PtCls", for if it were a double salt it would decompose as a mixture of sodium chloride and platinum chloride and both metals would go to the cathode.

Plates of platinum and pure or amalgamated zinc are separated by a porous pot, and each surrounded by some of the same solution of a salt of a metal more oxidizable than zinc, such as potassium.

But, on the other hand, if a few drops of acid be placed in the vessel with the platinum, bubbles of hydrogen appear, and a current flows, zinc dissolving at the anode, and hydrogen being liberated at the cathode.

If we connect together in series a single Daniell's cell, a galvanometer, and two platinum electrodes dipping into acidulated water, no visible chemical decomposition ensues.

Now let us disconnect the platinum plates from the battery and join them directly with the galvanometer.

These phenomena are explained by the existence of a reverse electromotive force at the surface of the platinum plates.

When we use platinum electrodes in acidulated water, hydrogen and oxygen are evolved.

This irreversibility is due to the work required to evolve bubbles of gas at the surface of bright platinum plates.

If the plates be covered with a deposit of platinum black, in which the gases are absorbed as fast as they are produced, the minimum decomposition point is 1.07 volt, and the process is reversible.

Platinum, palladium and tin are occasionally deposited for special purposes.

As in Hopkinson's experiments, ring magnets were employed; these were wound with primary and secondary coils of insulated platinum wire, which would bear a much higher temperature than copper without oxidation or fusion.

The temperature was determined by a platinum-rhodium and platinum thermo-j unction in contact with the metal.

Debray (1827-1888) he worked at the platinum metals, his object being on the one hand to prepare them pure, and on the other to find a suitable metal for the standard metre for the International Metric Commission then sitting at Paris.

Among the minerals are silver, platinum, copper, iron, lead, manganese, chromium, quicksilver, bismuth, arsenic and antimony, of which only iron and manganese have been regularly mined.

In chemistry he made a speciality of the platinum metals.

Platinum itself he discovered how to work on a practical scale, and he is said to have made a fortune from the secret, which, however, he disclosed in a posthumous paper (1829); and he was the first to detect the metals palladium (1804)(1804) and rhodium (1805) in crude platinum.

Richard Chevenix (1774-1830), a chemist, having bought some of the substance, decided after experiment that it was not a simple body as claimed, but an alloy of mercury with platinum, and in 1803 presented a paper to the Royal Society setting forth this view.

This uranate when ignited in a platinum crucible leaves a green oxide of the composition U308, i.e.

The beaker also is cautiously filled with acidulated water up to a point beyond the edge of the platinum basin.

The surface of vessels may be spangled with gold or platinum by rolling the hot glass on metallic leaf, or iridescent, by the deposition of metallic tin, or by the corrosion caused by the chemical action of acid fumes.

As liquidity might be looked upon as the ne plus ultra of softness, this is the right place for stating that, while most metals, when heated up to their melting points, pass pretty abruptly from the solid to the liquid state, platinum and iron first assume, and throughout a long range of temperatures retain, a condition of viscous semi-solidity which enables two pieces of them to be "welded" together by pressure into one continuous mass.

To give an idea of what can be done in this way, it may be stated that gold can be beaten out to leaf of the thickness of - j g - mm.; and that platinum, by judicious work, can be drawn into wire 2?o o mm.

In the oxyhydrogen flame silver boils, forming a blue vapour, while platinum volatilizes slowly, and osmium, though infusible, very readily.

Mercury, if pure, and all the "noble" metals (silver, gold, platinum and platinum-metals), are absolutely proof against water even in the presence of oxygen and carbonic acid.

A group (C) may be formed of mercury, silver, gold and platinum, which are not touched by either aqueous acid in any circumstances.

Hot (concentrated) sulphuric acid does not attack gold, platinum and platinum-metals generally; all other metals (including silver) are converted into sulphates, with evolution of sulphur dioxide.