Carbomer 940 (CAS 9003-01-4) Ultimate User Guide 2025
Table of Contents
1. Product Overview & Specifications
| Parameter | Carbomer 940 | Alternative Grades |
|---|---|---|
| CAS Number | 9003-01-4 | 9003-01-4 (All Carbomers) |
| Appearance | White fluffy powder | Varies by grade |
| Viscosity (0.5% solution) | 40,000-60,000 mPa·s | 4,000-11,000 (934), 50,000-100,000 (980) |
| pH Tolerance | 5.0-10.0 | 4.0-10.0 (934P) |
| Key Advantage | Highest clarity in gels | Ionic resistance (5984), Emulsification (Ultrez 21) |
2. Key Applications & Industrial Uses
Top 5 Industrial Applications:
- Cosmetic Gels: Achieve crystal-clear textures in hair styling products (0.8-1.2% concentration)
- Pharmaceuticals: Controlled drug release in topical antibiotics (NF grade compliance)
- Disinfectants: Alcohol-resistant thickening up to 70% ethanol content
- Ophthalmic Solutions: Pseudoplastic behavior for eye drop comfort
- PCR Test Kits: Buffer solution stabilization in diagnostics
3. Performance Comparison Chart
| Grade | Viscosity | Clarity | Ionic Tolerance | Typical Use |
|---|---|---|---|---|
| 940 | High | Excellent | Medium | Clear gels |
| 934 | Medium | Good | Low | Creams |
| 980 | Very High | Good | High | High-shear systems |
4. Formulation Case Studies
Case 1: Antimicrobial Hand Gel
Formula: 70% ethanol, 1.0% Carbomer 940, 0.2% triethanolamine
Result: Maintained viscosity >5,000 mPa·s after 6-month stability testing
Case 2: Hyaluronic Acid Serum
Formula: 0.5% Carbomer 940, 1% HA, pH adjusted to 6.2
Benefit: Zero precipitation at 4°C storage conditions
5. Verified Customer Success Stories
SkinPharm Ltd. (UK)
Challenge: Needed non-greasy acne treatment gel with 2% salicylic acid
Solution: 0.8% Carbomer 940 created stable gel matrix
Outcome: 23% faster active release vs competing thickeners
MediCare Vietnam
Project: Antiseptic wound dressing hydrogel
Technical Spec: 1.2% Carbomer 940 + 5% glycerin
Result: Passed ISO 10993 skin irritation tests
6. Procurement Guidance
Critical Purchasing Considerations:
- Verify USP/EP/NF compliance certificates
- Request residual solvent analysis report
- Confirm lead times (typically 4-6 weeks for EU imports)
Contact Our Experts:
Email: info@vivalr.com
Tel: (86) 15866781826
Ask about our bulk pricing (500kg+ orders) and sample program
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