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Arsenic trioxide powder.. Compounds of arsenic resemble in some respects those of phosphorus which occupies the same group (column) of the periodic table.The most common oxidation states for arsenic are: −3 in the arsenides, which are alloy-like intermetallic compounds, +3 in the arsenites, and +5 in the arsenates and most organoarsenic compounds.
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 increasing recognition of the toxicity of arsenic and its compounds. [15] Arsenic has been known since ancient times to be poisonous to humans. [16]
Arsine (IUPAC name: arsane) is an inorganic compound with the formula As H 3. This flammable, pyrophoric, and highly toxic pnictogen hydride gas is one of the simplest compounds of arsenic. [4] Despite its lethality, it finds some applications in the semiconductor industry and for the synthesis of organoarsenic compounds.
Other reactions of main group compounds with yellow arsenic have been shown to involve units of arsenic with more than four atoms. In reaction with the silylene compound [PhC(NtBu) 2 SiN(SiMe 3) 2], an aggregation of As 4 was observed to form a cage compound of ten arsenic atoms, including a seven-membered arsenic ring at its center. [9]
arsenic monoxide: 12005-99-1 AsO 2: arsenic dioxide: 12255-12-8 AsP: arsenic monophosphide: 12255-33-3 AsP 3: arsenic triphosphide: 12511-95-4 AsTl: thallium arsenide: 12006-09-6 As 2 I 4: arsenic diiodide: 13770-56-4 As 2 O 3: arsenic trioxide: 1327-53-3 As 2 P 2: arsenic diphosphide: 12512-03-7 As 2 O 5: arsenic pentoxide: 1303-28-2 As 2 S 4 ...
In chemistry, an arsenide is a compound of arsenic with a less electronegative element or elements. Many metals form binary compounds containing arsenic, and these are called arsenides. They exist with many stoichiometries , and in this respect arsenides are similar to phosphides .
For chemical compounds containing arsenic. For an alternative listing please see inorganic_compounds_by_element#Arsenic ...
In chemistry, the valence (US spelling) or valency (British spelling) of an atom is a measure of its combining capacity with other atoms when it forms chemical compounds or molecules. Valence is generally understood to be the number of chemical bonds that each atom of a given chemical element typically forms.