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White phosphorus, yellow phosphorus, or simply tetraphosphorus (P 4) is an allotrope of phosphorus. It is a translucent waxy solid that quickly yellows in light (due to its photochemical conversion into red phosphorus ), [ 2 ] and impure white phosphorus is for this reason called yellow phosphorus.
White phosphorus is a highly efficient smoke-producing agent, reacting with air to produce an immediate blanket of phosphorus pentoxide vapour. Smoke-producing white phosphorus munitions are very common, particularly as smoke grenades for infantry , loaded in defensive grenade launchers on tanks and other armoured vehicles, and in the ...
The white phosphorus allotrope presents a significant hazard because it ignites in the air and produces phosphoric acid residue. Chronic white phosphorus poisoning leads to necrosis of the jaw called "phossy jaw". White phosphorus is toxic, causing severe liver damage on ingestion and may cause a condition known as "Smoking Stool Syndrome". [144]
White phosphorus, yellow phosphorus or simply tetraphosphorus (P 4) exists as molecules of four phosphorus atoms in a tetrahedral structure, joined by six phosphorus—phosphorus single bonds. [1] The free P 4 molecule in the gas phase has a P-P bond length of r g = 2.1994(3) Å as was determined by gas electron diffraction . [ 2 ]
Pages in category "White phosphorus" The following 9 pages are in this category, out of 9 total. This list may not reflect recent changes. ...
White phosphorus was the active ingredient of most matches from the 1840s to the 1910s. Concern over phossy jaw contributed to the London matchgirls strike of 1888 , and although this strike did not end the use of white phosphorus, William Booth and The Salvation Army opened a match-making factory in 1891 that used the much safer, though more ...
White (in black-and-white): The mix of zinc cadmium sulfide and zinc sulfide silver, the ZnS:Ag + (Zn,Cd)S:Ag is the white P4 phosphor used in black and white television CRTs. Mixes of yellow and blue phosphors are usual. Mixes of red, green and blue, or a single white phosphor, can also be encountered.
The M107 bomb fuse at the nose of the bomb detonated the weapon, allowing for the release of the contents inside. The bomb was designed to carry either white phosphorus (WP) or a mustard agent (H). [1] However, the H bomb filler was found to leak from the bomb when loaded, and the M47 and its variant M47A1 were not allowed to be loaded. [1]