niobic acid

American  

noun

Chemistry.

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

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Etymology

Origin of niobic acid

First recorded in 1835–45

Example Sentences

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

From A System of Instruction in the Practical Use of the Blowpipe Being A Graduated Course Of Analysis For The Use Of Students And All Those Engaged In The Examination Of Metallic Combinations by Anonymous

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

From A System of Instruction in the Practical Use of the Blowpipe Being A Graduated Course Of Analysis For The Use Of Students And All Those Engaged In The Examination Of Metallic Combinations by Anonymous

Borax dissolves it in the oxidation flame quite readily to a clear bead, which, with a considerable quantity of niobic acid, is yellow when hot, but transparent and colorless when cold.

From A System of Instruction in the Practical Use of the Blowpipe Being A Graduated Course Of Analysis For The Use Of Students And All Those Engaged In The Examination Of Metallic Combinations by Anonymous