Carboxymethyl Cellulose


Basic Information

Other Names: CMC; Carboxymethyl Cellulose Sodium

Molecular Formula: (R)nOCH2COONa

CAS NO.: 9004-32-4

EINECS NO.: 265-995-8

H.S. CODE NO.: 39123100.00

Purity: 99.5% min.

Physicochemical Properties

1.Melting Point: 274 °C (dec.)℃

2.Density: 1.6 g/mL at 25 °C(lit.)

3.Solubility in water (g/L): Soluble

4.Stability: Stable.

Technical Specifications  

Food Grades:

AppearanceWhite to off-white powderComplies
Viscosity (1% mPa.S )3500-40003700
Particle SizeMin 95% pass 80 meshComplies

Purity(dry basis)

99.5% Min99.75%
Degree of substitution0.6- 0.90.75

pH (1% solution)

6.0- 8.57
Loss on drying10% Max
Lead3 mg/kg Max1.1 mg/kg
Arsenic2 mg/kg Max0.85 mg/kg
Mercury1 mg/kg Max0.45 mg/kg
Cadmium1 mg/kg Max0.25 mg/kg
Total heavy metals (as Pb)10 mg/kg Max2.85 mg/kg
Yeasts and moulds100 cfu/g Max45 cfu/g
Total plate count1000 cfu/g1000 cfu/g
E.coliNetative in 5 gNetative in 5 g
Salmonella spp.
Netative in 10gNetative in 10g

Packaging Types:

                  25kg bag or as per coustorme


Widely used in food-making as thickeners and emulsifiers. Also used in detergent, papermaking, oil-drilling, textile, dyeing, ceramics, construction, paint, welding, battery, medicine, tobacco, toothpaste, cosmetics, etc.

Storage Information

Keep container dry. Keep in a cool place. Ground all equipment containing material. Keep container tightly closed. Keep in a cool, well-ventilated place. Combustible materials should be stored away from extreme heat and away from strong oxidizing agents. Keep away from heat. Keep away from sources of ignition. Empty containers pose a fire risk, evaporate the residue under a fume hood. Ground all equipment containing material. Do not ingest. Do not breathe dust. Wear suitable protective clothing In case of insufficient ventilation, wear suitable respiratory equipment If ingested, seek medical advice immediately and show the container or the label. Avoid contact with skin and eyes. Keep away from incompatibles such asoxidizing agents.