Rhenium Oxychloride
Title: Rhenium Oxychloride
CAS Registry Number: 42246-25-3
CAS Name: Rhenium chloride oxide
Additional Names: perrhenyl chloride; rhenium trioxide chloride
Molecular Formula: ClO3Re
Molecular Weight: 269.66
Percent Composition: Cl 13.15%, O 17.80%, Re 69.05%
Line Formula: ReO3Cl
Literature References: Prepd by direct chlorination of rhenium(VI) oxide: Wolf et al., J. Am. Chem. Soc. 79, 4257 (1957).
Properties: Clear, colorless liquid. mp 4.5°. bp760 128°; also reported to be 131°: Bruckl, Ziegler, Ber. 65, 916 (1932). Distills in vacuo without decompn. Can be stored in sealed glass ampuls. Any purple color developing is due to residual ReO3. Sol in CCl4. Hydrolyzed by water to HReO4 and HCl. Extremely reactive toward mercury, silver and a large number of organic substances.
Melting point: mp 4.5°
Boiling point: bp760 128°; also reported to be 131°: Bruckl, Ziegler, Ber. 65, 916 (1932)
Status: This monograph has been retired and is no longer subject to revision or update.

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