Carbomer 934P is a synthetic, high-molecular-weight, crosslinked polyacrylic acid polymer used as a thickener, rheology modifier, suspending agent and formulation stabilizer. It is a specific Carbomer grade developed for pharmaceutical and personal-care formulation applications. Lubrizol identifies Carbopol® 934P NF as a Carbomer 934P homopolymer and lists it for oral pharmaceutical applications including suspensions, bioadhesive formulations, roller compaction, wet granulation and direct-compression applications.
Carbomer 934P is supplied as a white, fluffy powder with a slightly acetic odor. When properly dispersed and neutralized, the crosslinked polymer swells and produces a three-dimensional network that increases viscosity and provides structure to the formulation. The polymer's high viscosity makes it suitable where strong thickening and suspension properties are required.
Carbomer 934P is also used in topical formulation systems. Lubrizol's comparison of Carbopol polymers describes 934P NF as a traditional Carbopol polymer with high relative viscosity, short flow characteristics and high suspending ability. It can be used in selected hydroalcoholic gels, lotions and creams.
Carbomer 934P provides efficient viscosity enhancement at relatively low concentrations. Its crosslinked structure expands following hydration and suitable neutralization, increasing the viscosity of the continuous phase.
The polymer helps control flow characteristics and formulation consistency. Its short-flow behavior and high viscosity make it useful for structured formulations where a firm or controlled texture is required.
Carbomer 934P can provide high suspending ability by increasing viscosity and yield value. This can help maintain suitable dispersed materials throughout selected formulations.
Carbomer 934P can be incorporated into suitable creams and lotions where viscosity, structure and physical stability are important. It is particularly associated with high-viscosity formulations.
After proper dispersion, hydration and neutralization, Carbomer 934P can form structured aqueous or hydroalcoholic gel systems. The final appearance and viscosity depend on formulation conditions and the selected processing method.
Carbomer 934P NF has established pharmaceutical-excipient applications. Lubrizol lists the grade for suspensions, bioadhesive formulations, roller compaction, wet granulation and direct compression.
Carbomer 934P should be dispersed uniformly before complete hydration. Neutralization, pH, electrolytes, salts, surfactants and other formulation ingredients can significantly affect its final viscosity and rheological behavior.
For Carbopol® 934P NF, Lubrizol specifies viscosity testing after neutralization to pH 7.3–7.8. At 25°C, the specification is 2,050–5,450 cP for a 0.2% w/w mucilage and 29,400–39,400 cP for a 0.5% w/w mucilage under the specified Brookfield RVT test conditions.
Carbomer 934P is a benzene-polymerized Carbomer grade. Lubrizol states that it does not recommend benzene-polymerized Carbopol polymers for pharmaceutical formulations and identifies non-benzene alternatives such as Carbopol® 974P NF and Carbopol® 5984 EP.
Carbomer 934P can be used in:
Carbomer 934P is a high-molecular-weight, crosslinked polyacrylic acid polymer used as a thickener, rheology modifier and suspending agent.
The commonly used CAS number for Carbomer 934P is 9003-01-4. PubChem identifies Carbomer-related poly(acrylic acid) material under CAS 9003-01-4.
It is used for thickening, viscosity control, suspension, rheology modification and gel formation in suitable cosmetic, personal-care and pharmaceutical formulations.
Yes. Carbomer 934P is a high-viscosity Carbomer grade used to increase formulation viscosity.
Yes. After suitable dispersion, hydration and neutralization, it can form structured gel systems.
Yes. Carbomer 934P is listed among traditional Carbopol polymers suitable for selected cream and lotion applications.
For Carbopol® 934P NF, the documented viscosity specifications are 2,050–5,450 cP at 25°C for 0.2% w/w mucilage and 29,400–39,400 cP at 25°C for 0.5% w/w mucilage, with neutralization to pH 7.3–7.8.
The Carbopol® 934P NF specification gives 56.0–68.0% carboxylic acid content.
For Carbopol® 934P NF, the documented specification is NMT 2.0%.
Carbopol® 934P NF is a pharmaceutical-grade polymer meeting the current USP/NF Carbomer 934P monograph according to Lubrizol.
| Parameter | Specification |
|---|---|
| Appearance | Creamy white to pale yellow |