Search results
Results From The WOW.Com Content Network
Arsenic is used as the group 15 element in the III-V semiconductors gallium arsenide, indium arsenide, and aluminium arsenide. [10] The valence electron count of GaAs is the same as a pair of Si atoms, but the band structure is completely different which results in distinct bulk properties. [11]
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]
Occupational exposure and arsenic poisoning may occur in persons working in industries involving the use of inorganic arsenic and its compounds, such as wood preservation, glass production, nonferrous metal alloys, and electronic semiconductor manufacturing. Inorganic arsenic is also found in coke oven emissions associated with the smelter ...
The compound LiAs, has a metallic lustre and electrical conductivity indicating some metallic bonding. [1] These compounds are mainly of academic interest. For example, "sodium arsenide" is a structural motif adopted by many compounds with the A 3 B stoichiometry. Indicative of their salt-like properties, hydrolysis of alkali metal arsenides ...
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.
Arsenic trisulfide is the inorganic compound with the formula As 2 S 3. It is a dark yellow solid that is insoluble in water. It is a dark yellow solid that is insoluble in water. It also occurs as the mineral orpiment (Latin: auripigmentum), which has been used as a pigment called King's yellow.
Arsenic trichloride can be prepared by the reaction of arsenic oxide and sulfur monochloride. This method requires simple apparatus and proceeds efficiently: [8] 2 As 2 O 3 + 6 S 2 Cl 2 → 4 AsCl 3 + 3 SO 2 + 9 S. A convenient laboratory method is refluxing arsenic(III) oxide with thionyl chloride: [9] 2 As 2 O 3 + 3 SOCl 2 → 2 AsCl 3 + 3 SO 2
Arsenic pentafluoride can be prepared by direct combination of arsenic and fluorine: [3] 2As + 5F 2 → 2AsF 5. It can also be prepared by the reaction of arsenic trifluoride and fluorine: AsF 3 + F 2 → AsF 5. or the addition of fluorine to arsenic pentoxide or arsenic trioxide. 2As 2 O 5 + 10F 2 → 4AsF 5 + 5O 2 2As 2 O 3 + 10F 2 → 4AsF 5 ...