Dissolving Protect OX: Solubility Issues and Recommended Solvents

Asked by: insawang.ch On: August 19, 2018 Product Type: Cosmetics Answered

Question

I am trying to dissolve Protect OX (Pentaerythrityl Tetra-Di-T-Butyl Hydroxyhydrocinnamate) but encountered difficulty dissolving it in white oil, even with warm water (below 80°C). I would like to know:

  1. Can Propylene Glycol be used instead of oil?
  2. What is the recommended mixing method to achieve complete dissolution?

Answer

Regarding dissolving Protect OX (Pentaerythrityl Tetra-Di-T-Butyl Hydroxyhydrocinnamate):

You encountered difficulty dissolving it in white oil, even with warm water. This is likely because:

  • White oil (Mineral Oil / Paraffinum Liquidum) is a non-polar oil, which is less effective for dissolving Protect OX.
  • A very high ratio of oil to Protect OX is required for dissolution, typically around 1000 parts oil to 1 part Protect OX.

Regarding your questions:

  1. Can Propylene Glycol be used instead of oil? No, Protect OX cannot be dissolved in Propylene Glycol.
  2. Recommended mixing method:
    • Use a polar oil instead of white oil.
    • Ensure the ratio of oil to Protect OX is very high (around 1000:1).
    • You can use gentle warming, but as you noted, the temperature should not exceed 80°C.

Here are some polar oils available on our website that are suitable for dissolving Protect OX:

  • PPG-3 Myristyl Ether
  • LipidSoft™ Disperse
  • LipidSoft™ Palm (Ethylhexyl Palmitate)
  • Octyldodecanol

Using one of these polar oils at the recommended high ratio and gentle warming (below 80°C) should help achieve complete dissolution.