What Is Vanadium Salt

The vanadium salts we usually refer to include: those containing V4+, those containing VO3- (metavanadate), and those containing VO43- (orthovanadate). They include ammonium metavanadate, sodium metavanadate, potassium metavanadate, sodium orthovanadate, vanadium oxysulfate, vanadium oxyoxalate, vanadium tetrachloride, vanadium oxychloride, etc.
The colors of vanadium salts are really colorful, including green, red, black, and yellow. The green ones are as clear as jade, and the black ones are like thick ink. If divalent vanadium salts often appear purple; Trivalent vanadium salts are green, tetravalent vanadium salts are light blue, basic derivatives of tetravalent vanadium are often brown or black, while vanadium pentoxide is red. These colorful vanadium compounds are made into bright pigments: they are added to glass to make colored glass, and can also be used to make various inks.