Thoria sentence example

thoria
  • Much the best practical source of helium is thorianite, a mineral imported from Ceylon for the manufacture of thoria.

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  • It may be obtained as jet black octahedra (isomorphous with thoria) by fusion with borax.

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  • The name thoria (after the Scandinavian god Thor) was first given in 1815 by Berzelius to a supposed new earth which he had extracted from several rare Swedish minerals.

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  • In 1828 he gave the name thoria to an earth which he extracted from a mineral found at Lerdn.

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  • Thorium chloride, ThC1 4, is obtained as white shining crystals by heating a mixture of carbon and thoria in a current of chlorine.

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  • Thorium dioxide or thoria, Th02, is the most important compound, being manufactured commercially in comparatively large quantities from monazite sands, with a view to its utilization for gas mantles (see Lighting, Gas).

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