Definition of Platinum lamp. Meaning of Platinum lamp. Synonyms of Platinum lamp

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Definition of Platinum lamp

Platinum lamp
Platinum Plat"i*num, n. [NL., fr. Sp. platina, from plata silver, LL. plata a thin plate of metal. See Plate, and cf. Platina.] (Chem.) A metallic element, intermediate in value between silver and gold, occurring native or alloyed with other metals, also as the platinum arsenide (sperrylite). It is heavy tin-white metal which is ductile and malleable, but very infusible, and characterized by its resistance to strong chemical reagents. It is used for crucibles, for stills for sulphuric acid, rarely for coin, and in the form of foil and wire for many purposes. Specific gravity 21.5. Atomic weight 194.3. Symbol Pt. Formerly called platina. Platinum black (Chem.), a soft, dull black powder, consisting of finely divided metallic platinum obtained by reduction and precipitation from its solutions. It absorbs oxygen to a high degree, and is employed as an oxidizer. Platinum lamp (Elec.), a kind of incandescent lamp of which the luminous medium is platinum. See under Incandescent. Platinum metals (Chem.), the group of metallic elements which in their chemical and physical properties resemble platinum. These consist of the light platinum group, viz., rhodium, ruthenium, and palladium, whose specific gravities are about 12; and the heavy platinum group, viz., osmium, iridium, and platinum, whose specific gravities are over 21. Platinum sponge (Chem.), metallic platinum in a gray, porous, spongy form, obtained by reducing the double chloride of platinum and ammonium. It absorbs oxygen, hydrogen, and certain other gases, to a high degree, and is employed as an agent in oxidizing.

Meaning of Platinum lamp from wikipedia

- the platinum made it impractical for commercial use. In 1841, Frederick de Moleyns of England was granted the first patent for an incandescent lamp, with...
- electric light, lamp, or light bulb is an electrical component that produces light. It is the most common form of artificial lighting. Lamps usually have...
- Döbereiner's lamp, also called a "tinderbox" ("Feuerzeug"), is a lighter invented in 1823 by the German chemist Johann Wolfgang Döbereiner. The lighter...
- "self-lighting' gas lamps, ovens, and stove burners. Platinum black is widely used as a thin film covering solid platinum metal, forming platinum electrodes for...
- The Platinum Jubilee of Elizabeth II was the international celebration in 2022 marking the 70th anniversary of the accession of Queen Elizabeth II on 6...
- incandescent lamp. In 1937, the international candle was redefined again—against the luminous intensity of a blackbody at the freezing point of liquid platinum which...
- used fuelled lamps before the availability of electric lighting. The first Ford Model T used carbide lamps for headlights and oil lamps for tail lights...
- Scandinavia used the Hefnerkerze, a unit based on the output of a Hefner lamp. A better standard for luminous intensity was needed. In 1884, Jules Violle...
- also used in portable camping lanterns, pressure lanterns and some oil lamps. Gas mantles are usually sold as a fabric bag which, because of impregnation...
- his work concerning the use of platinum as a catalyst, and for the invention of a lighter, known as Döbereiner's lamp. By 1828 hundreds of thousands of...