• Formulating

  Gel forms Gas

  Posted by amitvedakar on May 9, 2024 at 6:48 am

  formulated Carbamide Peroxide gel. Other Ingredients propylene Glycole, Carbomer, TEA, EDTA, Glycerin.

  Water. After 5 days. Filled in 1 ml syringe . after 3 days syringe found gas. I have tried BHT also. It’s disposable pack. Any Idea? Market product contains only above ingredients.

  amitvedakar replied 1 week, 2 days ago 2 Members · 6 Replies
• 6 Replies

• 

  ketchito

  Member

  May 9, 2024 at 7:00 am

  Hi. What’s the pH of your product? Peróxido usually descompose faster the higher the pH. Just as a reference, a peroxide based stain remover has a pH of no more than 4.

  • 

    amitvedakar

    Member

    May 10, 2024 at 3:14 am

    it was 6 pH to neutralize carbomer. lower pH make it liquid.

• 

  ketchito

  Member

  May 10, 2024 at 6:29 am

  Yes, but that pH would compromise the stability of your peroxide.

  As for the viscosity, chances are you’re not using the right rheology modifiers, and the peroxide is attacking it. There are some grades made for oxidizing bases.

  • 

    amitvedakar

    Member

    May 10, 2024 at 6:34 am

    Can HEC work? or XAnthan Gum or SOD. CMC? MArket product ingredients list shows carbomer.

    • This reply was modified 1 week, 3 days ago by  amitvedakar.
• 

  ketchito

  Member

  May 10, 2024 at 6:47 am

  They might be using Carbopol 674 (https://www.ulprospector.com/es/la/Cleaners/Detail/11384/35242/Carbopol-674-Polymer). I don’t think gums you mentioned could resist an oxidizing agent.

  

  ulprospector.com

  Carbopol® 674 Polymer por Lubrizol - Productos de Limpieza, Domésticos, de Marca e Industriales

  Carbopol® 674 polymer is a lightly crosslinked polyacrylic acid polymer powder. This polymer provides suspension at low product viscosity and improves f...

  • 

    amitvedakar

    Member

    May 11, 2024 at 12:16 am

    Thank you for your suggestion . I will definitely try that one.

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