Sentence Examples


  • It is blue in colour and sublimes readily.
  • Pure amorphous boron is a chestnut-coloured powder of specific gravity 2.45; it sublimes in the electric arc, is totally unaffected by air at ordinary temperatures, and burns on strong ignition with production of the oxide B 2 0 3 and the nitride BN.
  • It is decomposed by water, and with a solution of yellow phosphorus in carbon bisulphide it gives a red powder of composition PBI 2, which sublimes in vacuo at 210° C. to red crystals, and when heated in a current of hydrogen loses its iodine and leaves a residue of boron phosphide PB.
  • It sublimes in small rhombic tables or needles, and is slightly soluble in cold water, the solution possessing an acid reaction.
  • It sublimes in thin plates of a dark colour and metallic lustre, and is soluble in solutions of the caustic alkalis.

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