Sentence Examples


  • As the weight of bleaching-powder consumed in the world is at most one-fifth of that of alkali, calculated as Na2C03, it follows that only about one-tenth of all the alkali required could be made by electrol y sis, even supposing the Leblanc process to be entirely abolished.
  • The chlorine can be used for the manufacture of liquid chlorine, bleaching-powder or other bleaching compounds, or chlorates, and the solution of sodium hydrate can be sold as such, or converted into solid caustic soda.
  • For the manufacture of bleaching-powder, limestone of high degree of purity (especially free from magnesia and iron) is carefully burned so as to drive out nearly all the carbon dioxide without overheating the lime.
  • The bleaching-powder casks must be kept in a dry place, as cool as possible, and never exposed to the direct rays of the sun, in order to prevent a decomposition which now and then has even led to explosions.
  • Bleaching-powder is manufactured to the extent of several hundred thousands of tons annually, almost entirely for the use of papermakers and cotton bleachers.