About Us  
     View  
     History  
     Honors  
     Culture  
   
  News Center

 

Preparation of pharmaceutical grade sodium dodecyl sulfate(151-21-3) from industrial grade sodium dodecyl sulfate

The present invention relates to a process for obtaining a pharmaceutical grade sodium dodecyl sulfate(SDS, 151-21-3) from industrial grade dodecyl sulfate, comprising the steps of:
A) Dissolving the crude SDS in an ethanol-water solvent having an ethanol content of between 15 and 35% to prepare a solution;
B) Cooling the solution to 0-5℃;
C) Filtering said solution;
D) The resulting filtrate was concentrated to remove all the solvent. The invention can effectively remove the sodium sulfate and sodium chloride impurities contained in SDS(151-21-3) by the influence of the presence of ethanol on the solubility of SDS and sodium sulfate and sodium chloride, and reduces the content of electrolyte impurities compared with the prior art.

 

 

Copyright(C)2016 , XZL Bio-Technology Co., Ltd. All Rights Reserved.  Supported by  LookChem Site Administration Enterprise E-mail 50-01-1