Triméthylarsine - SpeedyLook encyclopedia

The triméthylarsine is a chemical Composé of Chemical formula (CH₃) ₃As, commonly shortened in AsMe₃.
C' is an organic derivative of the Arsine (AsH₃), discovered in 1854 but it is only in 1893 that the Italian chemist Bartoloméo Gosio published the results of his work on pollutant gas said “Gas Gosio” , (Gases which then proved to be triméthylarsine).

It is in particular used as source of Arsenic by the industry of the Microélectronique S,

Chemical characteristics

It is a colorless liquid, Toxique, of mass molar 120,02 g/mol, n°CAS 593-88-4, slightly water soluble, soluble in various Solvant S organics.

Point melting: -87,3 °C
Not of boiling 51 °C
Not of explosion: 100 °C

Made up:

Cacodylic acid

Triphénylarsine

Preparation

It is produced starting from trioxide arsenic, in reaction with the Triméthylaluminium:

As₂O₃ + 3 AlMe₃ → 2 AsMe₃ + Me (Al-O) _n

Reactivity

Triméthylarsine can ignite because of an exothermic reaction of the following reactions:

AsMe₃ + 1/2 O₂ → OAsMe₃ (TMAO)

Safety/toxicity

As all compose them organoarséniés, outraged its immediate toxic character, he is regarded as carcinogenic.

See too

Arsenic

Notes and references

Wells, A.F., Structural Inorganic Chemistry (5th edition, ED: Oxford University Near, 1984, ISBN-10: 0198553706)

External bonds

Arsenic and health summarized of GreenFacts of a scientific report/ratio of the International Program on the Chemical Safety of WHO
Canadian Document on arsenic
Arsenic in seamen circle (file of 65p, made by Ifremer, in 1993)
Index by Molecular Formulated in
Information one Hazardous Chemicals by Class in
" Efficient Highly synthesis off trimethylarsine" E E Gavrilenko, L.A. ChekulaePa, * and L E Pisareva in
Microbial Methylation off Metalloids: Arsenic, Antimony, and Bismuth in
Arsenic Curiosa and Humanity in

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