Reactions of metal chlorides and chlorometallate salts with red phosphorus

The use of red phosphorus as a reducing agent for NbCl 5, TaCl 5, and MoCl 5 has been investigated by heating mixtures of red phosphorus and the metal chloride in a closed tube. By this method, NbCl 4 and MoCl 3 are obtained as products, while TaCl 5 undergoes little or no reduction under these cond...

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Bibliographic Details
Published in:Journal of the less-common metals 1967-01, Vol.13 (1), p.85-90
Main Authors: Horner, Sally M., Collier, F.N., Tyree, S.Y.
Format: Article
Language:English
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Summary:The use of red phosphorus as a reducing agent for NbCl 5, TaCl 5, and MoCl 5 has been investigated by heating mixtures of red phosphorus and the metal chloride in a closed tube. By this method, NbCl 4 and MoCl 3 are obtained as products, while TaCl 5 undergoes little or no reduction under these conditions. Similarly, upon heating mixtures of red phosphorus, CsCl, and CsNbCl 6 or CsTaCl 6, purple Cs 2NbCl 6 or Cs 2TaCl 6 were obtained. Mixtures of red phosphorus, CsCl, and MoCl 5 or WCl 6 yielded Cs 2MoCl 6 or CsWCl 6, respectively, upon heating.
ISSN:0022-5088
DOI:10.1016/0022-5088(67)90049-5