Home Cosmetic Science Talk Formulating Decyl Glucoside solubility in water

  • Decyl Glucoside solubility in water

    Posted by Richa on June 29, 2020 at 3:11 pm

    I am trying to make a vegetable and fruit wash using decyl Glucoside, which is not dissolving in water and settles down. 

    Phase A
    Decyl Glucoside
    Basil oil

    Phase B
    Water
    Glycerine
    Common salt
    Citric acid
    Potassium Sorbate
    EDTA

    Mixed phase B to A with gentle stirring.

    Phase A settles down( layer separation) after few hours.

    Problem
    How should I get a homogenous solution without layer separation.

    LincsChemist replied 3 years, 9 months ago 3 Members · 6 Replies
  • 6 Replies
  • LincsChemist

    Member
    June 29, 2020 at 3:21 pm

    Hi, if you give relative percentages is will be easier for people to see potential issues. What’s the final pH of your product?

  • Cafe33

    Member
    June 29, 2020 at 3:45 pm

    I am also making a concentrated fruit and vegetable using decyl glucoside. I have to add it very slowly under mixing or it will gel up and settle at the bottom.

    Why are you using glycerin in a food and veggie wash?

  • Richa

    Member
    June 30, 2020 at 2:37 am

    Cafe33 said:

    I am also making a concentrated fruit and vegetable using decyl glucoside. I have to add it very slowly under mixing or it will gel up and settle at the bottom.

    Why are you using glycerin in a food and veggie wash?

    Okay will try stirring while adding decyl Glucoside.
    I have added glycerine so that it’s soft on hands.

  • Richa

    Member
    June 30, 2020 at 2:38 am

    Hi, if you give relative percentages is will be easier for people to see potential issues. What’s the final pH of your product?

    Will post The percentage shortly. Final pH is around 5.

  • Richa

    Member
    June 30, 2020 at 3:20 am

    Hi, if you give relative percentages is will be easier for people to see potential issues. What’s the final pH of your product?

    Percentages:

    Phase A
    Decyl Glucoside 1.5%
    Basil Oil 0.15%

    Phase B
    Water 95.05%
    Common Salt 2.5%
    Glycerine 0.3%
    Citric Acid 0.3%
    EDTA 0.1%
    Potassium Sorbate 0.1%

    Final pH is around 5.

  • LincsChemist

    Member
    June 30, 2020 at 2:52 pm

    @Richa
    Great, thanks for adding the percentages. pH seems fine. What’s the purpose of the salt in this formulation? As far as I know, decyl glucoside doesn’t salt-thicken. I would also say that 0.1% Potassium Sorbate seems on the low side - I’d consider increasing that to around 0.5%. Other than that, I’d recommend gently warming the mix to 35-40C to encourage the decyl glucoside to fully incorporate.

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