Title: Vanadium Trisulfate
CAS Registry Number: 13701-70-7
Molecular Formula: O12S3V2
Molecular Weight: 390.07
Percent Composition: O 49.22%, S 24.66%, V 26.12%
Line Formula: V2(SO4)3
Literature References: Prepd by the reduction of V2O5 in sulfuric acid with elemental sulfur: Auger, Compt. Rend. 173, 306 (1921); Riveng, Bull. Soc. Chim. Fr. 4, 1697 (1937); Claunch, Jones, Inorg. Synth. 7, 92 (1963).
Properties: Lemon-yellow powder. When heated in vacuum at or slightly below 410°, it dec into VOSO4 and SO2. Stable in dry air. Upon exposure to moist air for several weeks, a green hydrate forms. Very slowly sol in water at room temp, somewhat faster in boiling water; practically insol in concd sulfuric acid; sol in dil and concd nitric acid. Powerful reducing agent.
Status: This monograph has been retired and is no longer subject to revision or update. |