Carboxymethyl cellulose CAS 9000-11-7

Product Name: Carboxymethyl Cellulose
English Alias: CMC; Cellulose Gum; Carmellose
CAS Number: 9000-11-7
Molecular Formula: [C₆H₇O₂(OH)₂OCH₂COONa]ₙ
Molecular Weight: Variable (Polymer, typically 90,000-700,000 g/mol)
Appearance: White to off-white fibrous powder or granules
Package: 25 kg/bag (paper-plastic composite bag with inner PE liner)

What is Carboxymethyl Cellulose？

Carboxymethyl Cellulose (CMC) is an anionic water-soluble polymer derived from cellulose. It appears as a white to off-white odorless fibrous powder or granules. The compound is highly soluble in water, forming clear viscous solutions, and exhibits excellent thickening, binding, and stabilizing properties. It is widely used in food, pharmaceutical, and industrial applications due to its non-toxic and biodegradable nature.

COA (Certificate of Analysis):

Model Index	FVH9-II	FVH9-I	FVH9	FH9	FM9	FL9	FL10	FVH6	FH6	FM6
1% aqueous solution viscosity (mPa·s)	≥4000	2000～4000	500～2000	200～500				≥500	200～500
2% aqueous solution viscosity (mPa·s)					400～2000	25～400				400～2000
Degree of substitution	0.90～1.00						1.00～1.20	0.60～0.90
Drying loss (%)	≤10.0
Chloride (Cl) (%)	≤1.2
pH value	6.0～8.5
Arsenic (%)	≤0.0002
Lead (%)	≤0.0005
Heavy metal (Pb) (%)	≤0.0015
Iron (%)	≤0.02

Application:

1. Food Industry: Thickener, stabilizer, and binder in dairy products, beverages, and baked goods

2. Pharmaceuticals: Binder in tablets, viscosity modifier in suspensions, and lubricant in ophthalmic solutions

3. Cosmetics: Thickener and emulsifier in lotions, creams, and toothpaste

4. Detergents: Soil anti-redeposition agent in laundry detergents

5. Paper Industry: Binder and coating agent in paper manufacturing

6. Textiles: Thickener in printing pastes and sizing agent

Safety Profile:

Carboxymethyl Cellulose is generally recognized as safe (GRAS) by FDA and approved for use in food and pharmaceuticals. May cause mild eye irritation. Inhalation of dust may cause respiratory discomfort. Use appropriate personal protective equipment including dust mask and safety glasses when handling. The substance is biodegradable and environmentally friendly. For detailed safety information, consult the full Safety Data Sheet (SDS).

Storage Requirements:

Store in a cool, dry, well-ventilated area away from direct sunlight. Keep containers tightly sealed and protected from moisture. Maintain storage temperature below 30°C. Relative humidity below 65% recommended.

Transport & Packaging:

Carboxymethyl Cellulose is packaged in paper-plastic composite bags with inner polyethylene liner (25 kg net weight per bag). Transport as non-hazardous material under normal conditions. Ensure containers are properly sealed and protected from moisture during transportation. Store away from incompatible materials.