Home Cosmetic Science Talk Formulating What temperature do you generally heat to when making emulsions?

  • What temperature do you generally heat to when making emulsions?

    Posted by helenhelen on March 2, 2020 at 9:46 pm

    As per the subject, what temperature do you generally heat your oil and water phases to when making emulsions?

    The typical temperature to heat to in formulation guides seems to be around 70°C. Is there ever a reason to heat above this? If so, what reasons?

    Also what is your opinion on not heating oils with high iodine values. Is there truth to this article? - https://formulabotanica.com/plant-oil-heat-sensitive/

    Thank you in advance for any opinions you can provide!

    helenhelen replied 4 years, 2 months ago 3 Members · 3 Replies
  • 3 Replies
  • ngarayeva001

    Member
    March 2, 2020 at 10:45 pm

    It’s not necessarily 70, it’s the melting temperature of the material with the highest melting point. Behentrimonium Chloride is 90+. I would not rely on the source you provided above.

  • ozgirl

    Member
    March 2, 2020 at 11:10 pm
    I think the general guideline is about 10°C above the melting point of the highest melting point of your solid ingredients.
    70°C is generally a pretty good place to start for beginners because raw materials like emulsifying wax NF, cetearyl alcohol and BTMS have melting point around 50 to 60°C. 
  • helenhelen

    Member
    March 5, 2020 at 3:47 pm

    Thank you both, that’s helpful.

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