Carbopol 907
CAS: 82642-95-3
Category: Surfactants
| Purity | Pharmaceutical Grade ≥99%; Cosmetic Grade ≥99%; Industrial Grade ≥95% polymer content (typical speci |
| Molecular Formula | (C3H4O2)n (crosslinked polyacrylic acid polymer) |
| Molecular Weight | Approximately 1.25×10^5–4.0×10^6 g/mol (viscosity |
| Appearance | White, fluffy, free-flowing powder with slight acidic odor; forms clear to slightly hazy viscous gels after neutralization. |
| Packaging | 1 kg, 5 kg, 10 kg, 20 kg polyethylene-lined fiber drums or cardboard drums; industrial quantities supplied in moisture-proof bags or drums. |
| Testing Indicators | Appearance — Visual inspection; Identification — FTIR spectroscopy (carboxylic acid polymer characteristic absorption); Loss on drying — Moisture analyzer or oven drying method; Residue on ignition — USP <281>; pH measurement — aqueous dispersion test; Viscosity — Brookfield viscometer after neutralization; Polymer content — acid-base titration; Heavy metals — ICP-MS or atomic absorption spectroscopy; Particle size distribution — laser diffraction analysis. |
| Storage Notes | Store in a cool, dry, and well-ventilated place. Keep the container tightly sealed to prevent moisture absorption. Protect from excessive heat, direct sunlight, and contamination. Avoid storage near strong alkaline materials and oxidizing agents. |
| Lead Time | 10 days |
Carbopol 907 is a crosslinked polyacrylic acid polymer used as a rheology modifier, thickener, suspending agent, stabilizer, and gel-forming agent. It is widely applied in pharmaceutical formulations, cosmetics, personal care products, topical gels, emulsions, creams, lotions, and controlled-release formulations. It provides high viscosity, excellent suspension properties, and stable gel formation after neutralization with alkaline agents.