Home Cosmetic Science Talk Formulating percentage of glycerin and carbopol

  • percentage of glycerin and carbopol

    Posted by karima on December 2, 2021 at 7:00 pm

    need for your advices for the percentage of the carbopol 940 and glycerin in a sanitizer gel hydro alcoholic

    70% OF ETHANOL 96°
    0,5% OF GLYCERIN 
    0,5% OF CARBOPOL 940
    0,2% OF TEA 
    and 28,3 % OF WATER  
    chemicalmatt replied 2 years, 6 months ago 4 Members · 3 Replies
  • 3 Replies
  • asharidwi

    December 8, 2021 at 1:18 am
    i think the function of glycerin in your formula just for humectant, usually people use 3.0%. the percentage of TEA is more important and it’s depend of carbopol content. so, you must determine how thicken your sanitizer. i prefer use carbopol in 0.3-0.6% and find the best percentage of TEA.
  • ketchito

    December 8, 2021 at 12:47 pm

    @karima The amount of Glycerin is fine (higher amounts can impair alcohol potency). For finding out the amount of TEA, you can check this guide from Lubrizol: https://www.lubrizol.com/-/media/Lubrizol/Health/TDS/TDS-237_Neutralizing_Carbopol_Pemulen_in_Aqueous_Hydroalcoholic_Systems-PH.pdf

  • chemicalmatt

    December 10, 2021 at 2:20 pm

    If using standard TEA 85%, then use 1.4 : 1.0 carbomer, but since you asked what I really think then save yourself a lot of money and time by DELETING the TEA and Carbopol 940 altogether and switch to Rapidgel EZ1 from 3V Sigma. 

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