Origin of tantalum
Examples from the Web for tantalum
The raw materials— tin, tantalum, tungsten and gold—were dubbed “conflict minerals.”Aaron Rodgers Takes Aim at Congo’s ‘Blood Minerals’ War|John Prendergast|December 3, 2014|DAILY BEAST
In China, for example, tungsten, tantalum, tin and gold are mined and ore is imported from other countries.Helter Smelter No More: Moving to Conflict Free Minerals|Intel|June 26, 2014|DAILY BEAST
Tantalum helps you send text messages, tin is the solder on every circuit board and gold is the little connecting piece.
Tungsten, tantalum, tin and gold are used to produce many common consumer electronics devices.
Tantalum is used to protect interconnects inside microprocessors.
The color value is in the following order: Tungsten, tantalum, graphitized filament, carbon filament.Motion Picture Operation, Stage Electrics and Illusions|Henry C. Horstmann
The tantalum filament was quickly followed by osmium and by tungsten in this country.
If the first figure of the last pair was assumed to be a null, the word was the symbol for tantalum: "Ta."The Caves of Fear|John Blaine
The oxide of tantalum dissolves in the bead, but gives no colour.A Textbook of Assaying: For the Use of Those Connected with Mines.|Cornelius Beringer and John Jacob Beringer
A century elapsed after its discovery before von Bolton produced the first tantalum filament lamp.