Sentence Examples


  • As the solution of potassium permanganate, which is deep red in colour, is dropped into the colourless iron solution, it is quickly decolorized while the iron solution gradually assumes a yellowish tinge, the first drop of the permanganate solution in excess giving it a pink tint.
  • In the reduction by stannous chloride the solution of the ore in the flask is heated to boiling, and a strong solution of stannous chloride is added until the solution is completely decolorized; then 60 cc. of a solution of mercuric chloride (so grammes to the litre) are run in and the contents of the flask poured into a dish containing 600 cc. of water and 60 cc. of a solution containing 200 grammes of manganous sulphate, i litre of phosphoric acid (1.3 sp. gr.), 400 cc. of sulphuric acid, and 1600 cc. of water.
  • The residue is then dissolved in water, decolorized by animal charcoal and saturated at 50 C. with oxalic acid.
  • The urea oxalate is recrystallized and decolorized and finally decomposed by calcium carbonate (J.
  • The precipitate is dissolved in boiling water, decolorized by potassium permanganate and decomposed by barium carbonate.
 

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