From Wikipedia, the free encyclopedia
Jump to: navigation, search

Beryllium Sulfide

IUPAC name
Other names
thioxoberyllium, Beryllium sulphide, sulfanylideneberyllium, Beryllium sulfide (BeS)
Molar mass 41.077182g/mol[2]
Appearance powder form
Density 2.36g/cm2[3]
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
Infobox references


Beryllium Sulfide is one of compounds called Beryllium chalcogenide. Chalcogenides are compounds made of a chalcogen ion, or element belonging to group 16, and a cation. Beryllium chalcogenides are semiconductors and have large band gaps. Additionally, Beryllium Sulfide is somewhat soluble in water and acids. BeS makes good coating because of their strong intermolecular covalent bonds. [4]The Beryllium solid has a 4 coordinate tetrahedral structure.[5] Beryllium sulfides are usually found in the form of powder. When added to water or acid, it dissolves moderately. This may be attributed to the fact that it acts as a Hydrogen bond acceptor.


Various chemical companies produce Beryllium Sulfide easily in any necessary volumes, in different grades, including high purity nanopowder form. [6]


Beryllium Sulfide is used in solar energy material and fuel cells, by being experimentally dispersed and deposited, using nanoparticles.Spluttering target and evaporation materials are used for the deposition process of Beryllium Sulfide. [7]


Beryllium sulfide is synthesized with autoclave synthesis. Beryllium metal is heated under pressure in the presence of hydrogen sulfide, or H2S.[8] and is produced by reacting with H2S. Additionally, BeS will decompose in water. [9] The synthesis reaction is shown below. The Beryllium metal is a solid, and hydrogen sulfide is in a gaseous form.

Beryllium sulfide synthesis.jpg


Beryllium metal is toxic to humans, as are beryllium salts. Thus, beryllium sulfide is very toxic, as well as carcinogenic. The Beryllium metal forms an insoluble precipitate in acidic condition, causing damage to the intestinal lining if it comes in contact.[10] Other related dangerous salts include Beryllium Chloride and Beryllium sulfate.