• Formulating

  Solubility of caprylhydroxamic acid in phenoxyethanol or glycerin

  Posted by Abdullah on January 19, 2022 at 2:48 am

  This preservative Phenostat composition is 

  Phenoxyethanol  70%
  Caprylhydroxamic acid  15%
  methylpropanediol  8%
  Water  7%

  My question are

  1. Is this methylpropanediol and water necessary to solubilize caprylhydroxamic acid in phenoxyethanol? 

  2. How much caprylhydroxamic acid can be solubilized in phenoxyethanol and be stored for later use? 

  Abdullah replied 1 year, 4 months ago 2 Members · 2 Replies

  • caprylhydroxamic-acid
  • phenoxyethanol
  • preservative
• 2 Replies

• 

  Graillotion

  Member

  January 19, 2022 at 3:02 am

  Don’t know the answer to your question…but just gonna toss this out there.  Someone in the know…. once whispered in my ear, that said acid is very incompatible with zinc.

  Just a heads up when formulating with it.

• 

  Abdullah

  Entrepreneur

  January 19, 2022 at 5:36 am

  Graillotion said:

  Don’t know the answer to your question…but just gonna toss this out there.  Someone in the know…. once whispered in my ear, that said acid is very incompatible with zinc.

  Just a heads up when formulating with it.

  Thanks 👍

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