¹ Source: wiktionary.com
Definition of Niobous
1. niobium [adj] - See also: niobium
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Lexicographical Neighbors of Niobous
Literary usage of Niobous
Below you will find example usage of this term as found in modern and/or classical literature:
1. A Handbook of chemical analysis (adapted to the unitary notation) by Francis Thirkill Conington, Heinrich Will (1858)
"niobous Anhydride is a white powder, insoluble in acids, obtained by heating the metal in the air, or by igniting niobous acid. ..."
2. A Dictionary of Chemistry and the Allied Branches of Other Sciences by Henry Watts (1866)
"to the chlorides, and formed from them by the action of water. Both of them form salts with basic metallic oxides. a. niobous Oxide or Anhydride. Nb20'. ..."
3. The Chemical Gazette (1857)
"To determine this last intermixture, crystallized soda-salts must be prepared with this impure niobous acid, from the amount of soda in which the intermixed ..."
4. Qualitative Chemical Analysis by C. Remigius Fresenius (1869)
"With soda, niobous anhydride fuses to a turbid mass, from which water dissolves ... By ignition of niobous anhydride, mixed with charcoal, in a current of ..."