niobic

[ nahy-oh-bik, -ob-ik ]

adjective

, Chemistry.

1. of or relating to niobium; columbic.
2. of or derived from niobic acid.

niobic

/ naɪˈəʊbɪk; -ˈɒbɪk /

adjective

1. of or containing niobium in the pentavalent state Alsocolumbic

Word History and Origins

Origin of niobic¹

First recorded in 1835–45; niob(ium) + -ic

Example Sentences

These oxides are commonly met with in samples of wolfram and tinstone, especially niobic.

From Project Gutenberg

The chief foreign matters in the black tin are silica, oxides of iron and copper, and wolfram, with traces of manganese and niobic acid; and in certain stream ores there may be as much as 6 or 7 per cent. of titaniferous iron.

From Project Gutenberg

Niobic Acid in large proportion Niobic Acid in large proportion.

From Project Gutenberg

Niobic Acid, Ni2O3 in the oxidizing flame.Behaves in a similar manner to tantalic acid, but the glass requires a very large dose of the acid to render it opaque under an intermittent flame.

From Project Gutenberg

In presence of the oxides of iron, the reactions are like those of niobic acid.

From Project Gutenberg