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ChemicalBook CAS DataBase List Vanadium(III) chloride
7718-98-1

Vanadium(III) chloride synthesis

9synthesis methods
Vanadium trioxide powder (2.1 g) and 8.5 ml of pure SOCl2 are placed in a bomb tube about 1.5 cm. in diameter, and the sealed tube is heated for 24 hours at 200℃. The tube is cooled to below 0℃ (in order to lower the SO2 vapor pressure) and is then opened to allow SO2 to escape. Then the tube contents are flushed out, under anhydrous conditions, into a small flask, using some SOCl2 for this purpose (the SOCl2 is then removed by vacuum distillation). The VCl3 residue is washed several times with very pure CS2 to remove traces of S2Cl2, and then thoroughly vacuum-dried at 80℃. Fine crystals of dark-violet VCl3 are obtained in nearly quantitative yield. preparation of Vanadium(III) chloride
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Yield:7718-98-1 90%

Reaction Conditions:

with N2H5Cl in tetrachloromethaneheating 10 - 15 h under N2 at reflux;; heating with CS2; pptn. washing with CHCl3 and ether;;

References:

Seifert, H. J. [Zeitschrift fur Anorganische und Allgemeine Chemie][Zeitschrift fuer Anorganische und Allgemeine Chemie,1962,vol. 317,p. 123 - 128]

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