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Phossy jaw, formally known as phosphorus necrosis of the jaw, was an occupational disease affecting those who worked with white phosphorus (also known as yellow phosphorus) without proper safeguards. It is also likely to occur as the result of use of chemical weapons that contain white phosphorus.
People exposed to white phosphorus can suffer severe and sometimes deadly bone-deep burns. It can cause organs to shut down, and burns on just 10% of the body can be fatal, HRW said. Those who don ...
This page is subject to the extended confirmed restriction related to the Arab-Israeli conflict. US Air Force Douglas A-1E Skyraider dropping a 100-pound (45 kg) M47 white phosphorus bomb on a Viet Cong position in South Vietnam in 1966 White phosphorus munitions are weapons that use one of the common allotropes of the chemical element phosphorus. White phosphorus is used in smoke ...
This meant matches could be made without any phosphorus, with a striking surface on the box that contained red phosphorus. [3] [9] In 1897 there were 4,152 people working in 25 match-making factories in Britain, 2,658 of whom were adults, 1,492 were aged between 14 and 18, and 2 under the age of 14.
The Pentagon recommended providing the white phosphorus shells to Ukraine as part of several aid packages, including a recent one, as a Presidential Drawdown Authority, according to the officials.
He was the first to use phosphorus to ignite sulfur-tipped wooden splints, forerunners of modern matches, [17] and also improved the process by using sand in the reaction: 4 NaPO 3 + 2 SiO 2 + 10 C → 2 Na 2 SiO 3 + 10 CO + P 4. Boyle's assistant Ambrose Godfrey-Hanckwitz later made a business of the manufacture of phosphorus.
The last time Lebanese farmer Zakaria Farah stepped onto his fields outside the southern town of Qlayaa was in January - but it was not to plant. After bagging up the earth, Farah, 30, sent half-a ...
Metallurgists Percy Gilchrist (1851–1935) and Sidney Gilchrist Thomas (1850–1885) invented the Gilchrist–Thomas process, which enabled the use of high phosphorus acidic Continental ores for steelmaking. The dolomite lime lining of the converter turned in time into calcium phosphate, which could be used as fertilizer, known as Thomas ...