Carboxy Methyl Cellulose(CMC)
Sodium Carboxymethyl Cellulose(CMC)
CAS: 9004-32-4
Carboxy Methyl Cellulose(CMC) is also named as Sodium Carboxymethyl Cellulose,is easy soluble in both cold and hot water. Sodium Carboxymethyl Cellulose (CMC) is a water-soluble anionic cellulose ether derived from natural cellulose through chemical modification.It provides good properties of thickening, water retention, film-forming, rheology and lubricity, which enable CMC cover a wind range of applications like food, personal care products, industrial paints, ceramics, oil drilling, building materials etc.CMC is synthesized by treating cellulose with sodium monochloroacetate in an alkaline medium, resulting in the carboxymethylation of hydroxyl (-OH) groups in the cellulose chain.
Typical properties
| Appearance | White to off-white powder |
| Particle size | 95% pass 80 mesh |
| Degree of substitution | 0.7-1.5 |
| PH value | 6.0~8.5 |
| Purity (%) | 92min, 97min, 99.5min |
Popular grades
| Application | Typical grade | Viscosity (Brookfield, LV, 2%Solu) | Viscosity (Brookfield LV, mPa.s, 1%Solu) | Dgree of Substitution | Purity |
| For Paint | CMC FP5000 | 5000-6000 | 0.75-0.90 | 97%min | |
| CMC FP6000 | 6000-7000 | 0.75-0.90 | 97%min | ||
| CMC FP7000 | 7000-7500 | 0.75-0.90 | 97%min | ||
| For Pharma&food | CMC FM1000 | 500-1500 | 0.75-0.90 | 99.5%min | |
| CMC FM2000 | 1500-2500 | 0.75-0.90 | 99.5%min | ||
| CMC FG3000 | 2500-5000 | 0.75-0.90 | 99.5%min | ||
| CMC FG5000 | 5000-6000 | 0.75-0.90 | 99.5%min | ||
| CMC FG6000 | 6000-7000 | 0.75-0.90 | 99.5%min | ||
| CMC FG7000 | 7000-7500 | 0.75-0.90 | 99.5%min | ||
| For detergent | CMC FD7 | 6-50 | 0.45-0.55 | 55%min | |
| For Toothpaste | CMC TP1000 | 1000-2000 | 0.95min | 99.5%min | |
| For Ceramic | CMC FC1200 | 1200-1300 | 0.8-1.0 | 92%min | |
| For oil field | CMC LV | 70max | 0.9min | ||
| CMC HV | 2000max | 0.9min |
Applications of CMC in Various Industries
A. Food Industry
CMC is approved as a food additive (E466) and used as a thickener, stabilizer, emulsifier, and fat replacer in various food products.
Key Uses in Food:
- Dairy Products (Ice Cream, Yogurt, Cheese): Enhances texture, prevents ice crystal formation.
- Bakery Products: Improves dough stability and shelf life.
- Beverages & Juices: Stabilizes emulsions and suspends particles.
- Sauces & Dressings: Provides smooth consistency and prevents phase separation.
- Low-Fat & Gluten-Free Foods: Acts as a fat replacer and improves mouthfeel.
B. Pharmaceuticals & Cosmetics
CMC is widely used in pharmaceutical formulations and personal care products due to its biocompatibility, stability, and thickening properties.
Common Uses in Pharmaceuticals & Cosmetics:
- Oral Medications & Syrups: Used as a suspending agent to prevent sedimentation.
- Tablet Binding & Coating: Enhances tablet disintegration and improves drug release.
- Eye Drops & Artificial Tears: Provides lubrication and moisture retention.
- Toothpaste & Mouthwash: Acts as a thickener and stabilizer for uniform consistency.
- Skin Care & Hair Care: Enhances texture and hydration in lotions, creams, and shampoos.
C. Detergents & Cleaning Products
CMC is used in laundry detergents and household cleaners as a dirt suspending agent and anti-redeposition agent.
Benefits in Detergents:
- Prevents Dirt Re-Deposition: Keeps dirt particles suspended in water, preventing them from reattaching to fabrics.
- Improves Cleaning Performance: Enhances detergent efficiency, even in hard water conditions.
- Increases Foam Stability: Helps create a rich, stable lather.
- Reduces Fabric Damage: Provides a protective layer on fibers, minimizing wear and tear.
D. Oil Drilling & Industrial Applications
CMC is extensively used in oil drilling fluids, textiles, paper production, adhesives, and coatings due to its excellent rheological properties.
Key Industrial Uses:
- Oil & Gas Industry: Used as a viscosifier and fluid loss control agent in drilling muds.
- Paper Industry: Improves paper strength, surface smoothness, and ink retention.
- Textile Industry: Used as a thickening agent in printing pastes and textile sizing.
- Paints & Coatings: Enhances flow properties and pigment dispersion.
- Construction Materials: Improves workability, water retention, and binding strength in cement-based applications.
| Types of Uses | Specific Applications | Properties Utilized |
| Paint | latex paint | Thickening and Water-binding |
| Food | Ice cream Bakery products |
Thickening and stabilizing stabilizing |
| Oil drilling | Drilling Fluids Completion Fluids |
Thickening, water retention Thickening, water retention |
Packaging:
CMC Product is packed in three layer paper bag with inner polyethylene bag reinforced , net weight is 25kg per bag.
Storage:
Keep it in cool dry warehouse,away from moisture, sun,fire,rain.
Kima Chemical Co., Ltd. is a professional manufacturer specializing in cellulose ether products, including Sodium Carboxymethyl Cellulose (CMC). With a production capacity of 20,000 tons per year, Kima Chemical offers a range of high-quality cellulose derivatives for various industrial applications. Kima Chemical’s commitment to quality and extensive CMC product range positions us as a reliable CMC supplier of cellulose ether products, catering to diverse industrial needs.