Explore Books on
columbium

Niobium (columbium) deposits of Canada

By Robert B. Rowe

Tantalum and niobium

By George Leslie Miller

The reduction of columbic acid and the measurement of the oxidation potential of the pentavalent-trivalent columbium system ..

By Hart, David

Extraction of tantalum and columbium from their ores ..

By Leslie George Jenness

Technology of columbium (niobium)

By Symposium on Columbium (Niobium) (1958 Washington, D.C.)

The evolution of hydrogen from solutions of trivalent columbium in sulfuric acid ..

By Robert Lee Fox

Tantalum and niobium

By Keith Rodney Miles

Observations on columbuim

By Clarence William Balke