Functions and Uses of Sodium Salicylate

  • Author:Kathy
  • Release on :2016-05-11

Used as raw material in organic synthesis of the free acid in gastric juice, preservatives, test reagents. Antipyretic analgesics and anti-rheumatism medicine.

        1.  Salicylic acid react with sodium bicarbonate

        Add the salicylic acid and sodium bicarbonate cross distilled water, the temperature 60 , and keep the acidic condition, and adding suitable amount of ethylenediamine tetraacetic acid (EDTA) and insurance powder. Up to 85 , reaction and a half hours. Will be filtered into qualified reaction liquid ebullated bed, in 85 dry sodium salicylate.

        2.  Phenol method (industrial preparation)

       Currently known methods of preparation of salicylic acid in industry mainly phenol as the starting material, reaction with sodium hydroxide, sodium phenol was made by the solution, toluene added in reaction solution, and form the lowest constant boiling water, heating reflux reaction, anhydrous sodium phenol. The latter with carbon dioxide pressure carboxyl, sodium salicylate.


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