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ChemicalBook CAS DataBase List ARSENIC (III) BROMIDE
7784-33-0

ARSENIC (III) BROMIDE synthesis

4synthesis methods
A boat is placed in a Pyrex tube and filled with As powder. A stream of dry N3, saturated with Br 3 vapor by passage through a Br2-filled wash bottle, is passed over the As. The tube is inclined toward the receiver and connected with the latter by means of an asbestos-paper-sealed adapter. The tube is heated until the onset of reaction. The product is distilled from the receiver over As powder.
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Yield: 68.9%

Reaction Conditions:

in neat (no solvent)dropwise addn. of BBr3 with continuous stirring to tributyl arsenite at -5 to -7°C under dry Ar or N2, additional stirring (20 min), decanting the liquid phase; distg. the solid at reduced pressure in a CO2 stream; elem. anal.;

References:

Gigauri, R. D.;Chavchanidze, N. G. [Journal of general chemistry of the USSR,1990,vol. 60,p. 2235 - 2236][J.Gen.Chem.USSR (Engl.Transl.),1990,vol. 60,p. 2499 - 2501]

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