Home Cosmetic Science Talk Formulating Using IKA ULTRA-TURRAX®


    Posted by joanaflores on July 30, 2020 at 5:54 pm

    Hello everyone, 

    I saw some posts from the chemist corner blog and also some conversations in this forum about using ultra-turrax for emulsions.
    My problem is when I use it for high viscous emulsions. I have difficulty in getting a homogeneous mixing.

    Can you give me some advice?

    Thank you in advance

    ngarayeva001 replied 3 years, 10 months ago 3 Members · 2 Replies
  • 2 Replies
  • chemicalmatt

    July 30, 2020 at 9:16 pm

    Joana, you will need to apply a rubber (better, Teflon) spatula around the outside perimeter of the beaker counter to the spin direction of that homogenizer head, trying to avoid contact with that monster. Industrially, we call this “double-motion.”

  • ngarayeva001

    July 30, 2020 at 10:13 pm

    Silly question maybe but why wouldn’t you use a stick blender? I know there’s a stigma about using stick blenders among chemists but they are cheap, can deal with high viscosities and do the job. You absolutely need an overhead stirrer in my opinion (especially if you make w/o) but stick blender is a budget friendly option when you need high shear. There are versions that are >15,000 rpm

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