The role of solvent in dishwashing liquids

Comments

• Microformulation

  December 2018

  Solvents.
  

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• Chemist77

  December 2018

  Foam control plus viscosity control. 
• Gunther

  December 2018

  I have seen some dishwash formulations where ethyl alcohol is the sole preservative (and it helps cut grease a bit).
  
• ozgirl

  December 2018

  I have seen ethanol used for viscosity control in concentrated dish washing formulas.
  
• DAS

  December 2018

  In order of importance: 
  
  1) Cloud point
  2) Viscosity
  3) Foam
  
  Although 1 and 2 can alternate depending on the region/weather.
• shellyco

  December 2018

  thanks guys for sharing ! When you state that it's used for foam and viscosity control, does it mean it may help increase the foam and viscosity when added at certain level ? Or on the contrary it counters the effect of foam and reduce viscosity ? Thank you. 

  Connecting molecules...
• ozgirl

  December 2018

  Ethanol reduces viscosity and foam.
  
• Gunther

  December 2018

  As for cloud point,
  you can check this post of mine where I had trouble getting past 15% LABSA in dishwash
  http://chemistscorner.com/cosmeticsciencetalk/discussion/4804/should-i-dilute-sulfonic-acid-before-neutralizing-it-with-sodium-hydroxide#latest
  
  Cloudiness usually means it ain't properly dissolved
  I believe propylene glycol and ethanol may work as solvents, increasing solubility for a more concentrated product.
  Propylene glycol usually decreases solubility.
• shellyco

  December 2018 edited December 2018

  thank you @Gunther for the clarification. It's better clear for me now !

  Connecting molecules...