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Platinum black (Pt black) is a fine powder of platinum with good catalytic properties. The name of platinum black is due to its black color. The name of platinum black is due to its black color. It is used in many ways; as a thin film electrode, a fuel cell membrane catalyst, or as a catalytic ignition of flammable gases for "self-lighting" gas ...
The platinum-group metals [a] (PGMs) are six noble, precious metallic elements clustered together in the periodic table. These elements are all transition metals in the d-block (groups 8, 9, and 10, periods 5 and 6). [1] The six platinum-group metals are ruthenium, rhodium, palladium, osmium, iridium, and platinum.
The .500/465 Nitro Express is the only other cartridge with the same bullet diameter as the .465 H&H Magnum. Both cartridges are designed to fire a 480-grain (31 g) .468 caliber (11.89 mm) bullet. Although the cartridge is capable of operating at rather high pressures, Holland & Holland chose to load the cartridge to a moderate pressure of ...
Platinum is a chemical element; it has symbol Pt and atomic number 78. It is a dense, malleable, ductile, highly unreactive, precious, silverish-white transition metal. Its name originates from Spanish platina, a diminutive of plata "silver". [7] [8] Platinum is a member of the platinum group of elements and group 10 of the periodic table of ...
A noble metal is ordinarily regarded as a metallic element that is generally resistant to corrosion and is usually found in nature in its raw form. Gold, platinum, and the other platinum group metals (ruthenium, rhodium, palladium, osmium, iridium) are most often so classified.
Complex metallic alloys; Heusler alloy, a range of ferromagnetic alloys (66% copper, cobalt, iron, manganese, nickel or palladium) High-entropy alloys; Intermetallic compounds; List of brazing alloys; Pot metal; inexpensive casting metal of non-specific composition
Adams' catalyst, also known as platinum dioxide, is usually represented as platinum(IV) oxide hydrate, PtO 2 •H 2 O. It is a catalyst for hydrogenation and hydrogenolysis in organic synthesis . [ 1 ]
The .500/465 Nitro Express is one of several rounds (including the .470 Nitro Express, .475 Nitro Express, .475 No. 2 Nitro Express and .476 Nitro Express) developed as a replacement for the .500/450 Nitro Express following the British authorities' 1907 ban of military caliber ammunition in India and the Sudan, all with comparable performance.
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