columbic

[ kuh-luhm-bik ]

adjective

, Chemistry.

1. niobic.

columbic

/ kəˈlʌmbɪk /

adjective

1. another word for niobic

Word History and Origins

Origin of columbic¹

First recorded in 1800–10; columb(ium) + -ic

Example Sentences

Colum′bate, a salt or compound of columbic acid with a base; Colum′bite, the native ore of columbium; Colum′bium, a metallic element now called niobium.

From Project Gutenberg

Columbium oxychloride, CbOCl3, is formed when carbon tetrachloride, and columbic acid are heated together at 440� C.: 3CCl4 + Cb2O5 = 2CbOCl3 + 3COCl2, and also by distilling the pentachloride, in a current of carbon dioxide, over ignited columbic acid.

From Project Gutenberg

Niobic acid is in its properties similar to columbic acid.

From Project Gutenberg

When heated in the air it is oxidized into columbic acid, and is only soluble in hydrofluoric acid, yielding hydrogen.

From Project Gutenberg

It melts with microcosmic salt quite readily in both of the flames, to a clear bead, which appears, if a considerable quantity of columbic acid be present, of a yellow color while hot, but colorless when cold, and does not become clouded if the intermittent flame be applied to it.

From Project Gutenberg