Home Cosmetic Science Talk Formulating Thickener intolerant to salt/minerals

  • Thickener intolerant to salt/minerals

    Posted by mhart123 on October 10, 2019 at 3:25 pm

    Looking to make a gel containing a high load of magnesium chloride.  Can anyone please make a recommendation of what a good thickener might be that isn’t affected by salt or minerals.  Thanks! 

    mhart123 replied 5 years, 1 month ago 5 Members · 5 Replies
  • 5 Replies
  • Fekher

    Member
    October 10, 2019 at 4:10 pm

    @mhart123 try HEC

  • EVchem

    Member
    October 10, 2019 at 5:20 pm

    Sepimax Zen (polyacrylates crosspolymer-6) should also work

  • ngarayeva001

    Member
    October 10, 2019 at 7:17 pm

    Sepimax Zen is certainly better than other thickeners but it only works to a certain point. Too much salt will turn it to water as well.
    Xanthan could be an option but it still will be runny. Hydrocolloids derived of acrylic acid don’t do well with electrolytes.

  • chemicalmatt

    Member
    October 11, 2019 at 2:49 pm

    Agree with ngaryeva001. All polyacrylates will eventually crash especially with divalent ions like Mg. How about the xanthan/magnesium aluminum silicate (Veegum) combo? May not look nice but will do the job.

  • mhart123

    Member
    October 11, 2019 at 5:03 pm

    thanks everyone! I’ve made up one gel with HEC and it looks nice now, we will see how it holds up overtime.

    @chemicalmatt I’m working on a different formulation (a lotion) with veegum R in it now but it doesn’t seem to add any viscosity.  I have it at 1.5%, putting it in the water phase and heating to 75/80C based off a formula from the manufacturer.  This is my first time working with it, can you please advise on the best way to use it? 

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