Sentence Examples


  • The salts of arsenic acid, termed arsenates, are isomorphous with the phosphates, and in general character and reactions resemble the phosphates very closely; thus both series of salts give similar precipitates with "magnesia mixture" and with ammonium molybdate solution, but they can be distinguished by their behaviour with silver nitrate solution, arsenates giving a reddish-brown precipitate,whilst phosphates give a yellow precipitate.
  • There are several volumetric methods for assaying lead ores, but the best known is that based on the precipitation of lead by ammonium molybdate in an acetic acid solution.
  • A standardized solution of ammonium molybdate is then added from a burette.
  • As long as the solution contains lead, the addition of the molybdate solution causes a precipitation of white lead molybdate.
  • The molybdate solution should be of such a strength that i cc. will precipitate o oi gramme of lead.
 

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