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Arsenic is a common n-type dopant in semiconductor electronic devices. It is also a component of the III–V compound semiconductor gallium arsenide. Arsenic and its compounds, especially the trioxide, are used in the production of pesticides, treated wood products, herbicides, and insecticides. These applications are declining with the ...
Although she had had access to arsenic, and arsenic had been found in the victim's food, none could be found in the corpse. Orfila was asked by the court to investigate. He discovered that the test used, the Marsh test, had been performed incorrectly, and that there was in fact arsenic in the body; LaFarge was subsequently found guilty.
Albertus Magnus [a] OP (c. 1200 – 15 November 1280), also known as Saint Albert the Great, Albert of Swabia [4] or Albert of Cologne, was a German Dominican friar, philosopher, scientist, and bishop, considered one of the greatest medieval philosophers and thinkers.
Carl Wilhelm Scheele (German:, Swedish: [ˈɧêːlɛ]; 9 December 1742 – 21 May 1786 [2]) was a German Swedish [3] pharmaceutical chemist.. Scheele discovered oxygen (although Joseph Priestley published his findings first), and identified molybdenum, tungsten, barium, nitrogen, and chlorine, among others.
Arsenic is a naturally occurring substance that’s found in the air, water, and soil, per the National Cancer Institute (NCI). It’s divided into organic and inorganic arsenic, with inorganic ...
Any arsenic present would appear as arsenic trioxide and then could be subjected to Metzger's test. The most common test (and used even today in water test kits) was discovered by Samuel Hahnemann. It would involve combining a sample fluid with hydrogen sulfide (H 2 S) in the presence of hydrochloric acid (HCl).
Walmart has recalled nearly 10,000 cases of apple juice sold in stores across the U.S. that were found to contain potentially harmful levels of inorganic arsenic. The recall applies to 9,535 cases ...
Lead, a naturally occurring toxic element found in the earth’s soil, can have serious health consequences with even minimal exposure. ... The study also found other toxic elements like arsenic ...