Sentence Examples


  • Due to the effects of a chemical called silver halide, photochromic lenses have the ability to darken when exposed to UV rays, and return to their original transparency when light is less intense.
  • When the wearer is exposed to UV, photochromatic molecules (silver halide or silver chloride) that are deeply embedded in the lens begin to change shape.
  • The atomic weight of silicon has been determined usually by analysis of the halide compounds or by conversion of the halides into silica.
  • When magnesium is heated in fluorine or chlorine or in the vapour of bromine or iodine there is a violent reaction, and the corresponding halide compounds are formed.
  • The most important of the halide salts is the chloride which, in the hydrated form, has the formula MgC1 2.6H 2 O.