Solubility of caprylhydroxamic acid in phenoxyethanol or glycerin

AbdullahAbdullah Member
edited January 19 in Formulating
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? 

Comments

  • 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.
  • 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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