View source for Arsenic

[[File:As-TableImage.svg|thumb|200px|Position of arsenic in the periodic table.]]
[[File:Arsen (gediegen) mit Dyskrasit - St Andreasberg, Harz.jpg|thumb|200px|Arsenic.]]

'''Arsenic''' is a [[Chemical elements|chemical element]] with the symbol As and atomic number 33. Arsenic occurs in many minerals, usually in combination with [[sulfur]] and metals, but also as a pure elemental crystal. Arsenic is a metalloid. Arsenic is toxic to people and animals in quantities larger than needed.

== Materials needed ==

* An arsenic-containing mineral, usually with the formula MAsS and MAs<sub>2</sub> (M = [[Iron|Fe]], [[Nickel|Ni]], [[Cobalt|Co]]).
* Alternatively, Smelter dust from [[copper ore]], [[gold]], [[lead]], or some other metallic ores.

== Crafting instructions ==
Usable forms of arsenic may be achieved by:

* Roasting an arsenic-containing mineral like arsenopyrite in air, allowing arsenic(III) oxide to sublimate out.
* Roasting in the absence of air, to form gray arsenic.
* sublimation in a vacuum or in a hydrogen atmosphere
* distillation from a lead-arsenic mixture.

== Uses ==
The primary use of arsenic is in [[lead]] alloys (for example, in car batteries and ammunition). Arsenic and its compounds, especially the trioxide, are used in the production of pesticides, treated [[wood]] products, herbicides, and insecticides, although its use has declined with the increasing recognition of the toxicity of arsenic and its compounds. 

== Dependencies ==

* '''Arsenic'''
* [[Lead]]
* [[Wood]]

== See also ==
* [[Boron]]
* [[Silicon]]
* [[Chemical elements]]

== References ==
{{wa|Arsenic}}

[[Category:Metalloids]]