Neutralization Requirements for Carbomer 980 Gel Formation
Asked by: Anonymous
On: December 25, 2025
Product Type:
Cosmetics
Question
Does Carbomer 980 (Benzene-free) require the use of an alkaline substance (neutralizing agent) to form a gel?
I would like to clarify the following points:
- Is it necessary to add an alkali to create the gel texture?
- What is the step-by-step process for creating a clear, thick gel using this ingredient?
- Which neutralizing agents are recommended for different types of formulations, such as standard water-based gels versus high-alcohol formulations?
Answer
Yes, Carbomer 980 (Benzene-free, Toxic-free) requires an alkali (neutralizing agent) to create a gel texture.
When Carbomer 980 is first dispersed in water, the solution is acidic (low pH) and has a thin, liquid consistency. To transform it into a clear, thick gel, you must neutralize it by adding an alkaline substance to raise the pH to approximately 6.0–7.0. This process causes the polymer chains to expand and thicken the water.
Commonly used neutralizing agents include:
- Triethanolamine (TEA): The most common choice for general water-based gels.
- AMP (2-Amino-2-methyl-1-propanol): Recommended if your formula contains a high proportion of alcohol (such as hand sanitizer gels) to ensure the gel remains clear and stable.
Usage Instructions:
- Disperse Carbomer 980 in water and stir until fully dissolved (it may take some time to hydrate).
- Slowly add the neutralizing agent while stirring.
- You will observe the mixture thickening into a gel as the pH reaches the appropriate range.
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