Chem. [f. VANAD-IUM + -IC. Cf. F. vanadique.] Of or pertaining to, derived from, vanadium; spec. containing vanadium in its higher valency, as opposed to VANADIOUS a. Chiefly in vanadic acid.

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1835.  Partington’s Brit. Cycl. Arts & Sci., 11. 858/2. The vanadic acid is reduced to the state of salifiable oxide.

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1849.  D. Campbell, Inorg. Chem., 303. Vanadic acid is a brownish powder, but when melted … it approaches a rusty-red.

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1874.  Roscoe, Ess. (Owens Coll.), II. 55. The crystalline form of a mineral contained vanadic oxide.

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