niobic acid

noun

Chemistry.

1. a white, water-insoluble solid, Nb 2 O 5 ⋅nH 2 O.

Word History and Origins

Origin of niobic acid¹

First recorded in 1835–45

Example Sentences

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.

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Niobic Acid in large proportion Niobic Acid in large proportion.

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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.

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

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With carbonate of soda, the reactions are similar to those of niobic acid.

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