Arsenic
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| - | [[Image:A painting of the English romantic poet Thomas Chatterton, believed to have killed himself with arsenic in 1770.jpg |thumb|right|200px|A painting of the English romantic poet [[Thomas Chatterton]], believed to have killed himself with [[arsenic]] in [[1770]]]] | + | [[Image:A painting of the English romantic poet Thomas Chatterton, believed to have killed himself with arsenic in 1770.jpg |thumb|right|200px|''[[The Death of Chatterton]]'' (1856) by [[Henry Wallis]]]] |
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| - | '''Arsenic''' is a [[chemical element]] with the symbol '''As''', [[atomic number]] 33 and [[relative atomic mass]] 74.92. Arsenic occurs in many minerals, usually in conjunction with sulfur and metals, and also as a pure elemental crystal. It was first documented by [[Albertus Magnus]] in 1250. Arsenic is a [[metalloid]]. It can exist in various [[allotropy|allotropes]], although only the grey form has important use in industry. | + | '''Arsenic''' is a [[chemical element]] with the symbol '''As''' and [[atomic number]] 33. Arsenic was first documented by [[Albertus Magnus]] in 1250. |
| - | The main use of metallic arsenic is for strengthening alloys of copper and especially lead (for example, in car batteries). Arsenic is a common n-type [[dopant]] in [[semiconductor]] electronic devices, and the [[optoelectronic]] compound [[gallium arsenide]] is the most common semiconductor in use after doped silicon. Arsenic and its compounds, especially the trioxide, are used in the production of [[pesticide]]s (treated wood products), [[herbicide]]s, and [[insecticide]]s. These applications are declining, however. | + | Arsenic and its compounds, especially the trioxide, are used in the production of [[pesticide]]s (treated wood products), [[herbicide]]s, and [[insecticide]]s. These applications are declining, however. |
| Arsenic is notoriously poisonous to multicellular life, although a few species of bacteria are able to use arsenic compounds as respiratory metabolites. [[Arsenic contamination of groundwater]] is a problem that affects millions of people across the world. | Arsenic is notoriously poisonous to multicellular life, although a few species of bacteria are able to use arsenic compounds as respiratory metabolites. [[Arsenic contamination of groundwater]] is a problem that affects millions of people across the world. | ||
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| * [[White arsenic]] | * [[White arsenic]] | ||
| * [[Arsenic trioxide]] | * [[Arsenic trioxide]] | ||
| + | *[[Mees' lines]] | ||
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Arsenic is a chemical element with the symbol As and atomic number 33. Arsenic was first documented by Albertus Magnus in 1250.
Arsenic and its compounds, especially the trioxide, are used in the production of pesticides (treated wood products), herbicides, and insecticides. These applications are declining, however.
Arsenic is notoriously poisonous to multicellular life, although a few species of bacteria are able to use arsenic compounds as respiratory metabolites. Arsenic contamination of groundwater is a problem that affects millions of people across the world.
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See also
- Aqua Tofana
- Arsenic poisoning
- Fowler's solution
- Grainger challenge
- White arsenic
- Arsenic trioxide
- Mees' lines
Unless indicated otherwise, the text in this article is either based on Wikipedia article "Arsenic" or another language Wikipedia page thereof used under the terms of the GNU Free Documentation License; or on research by Jahsonic and friends. See Art and Popular Culture's copyright notice.
