CMC (CARBOXYMETHYL CELLULOSE SODIUM)

Carboxymethyl cellulose sodium, often abbreviated as CMC or sodium CMC, is a versatile chemical compound used in various industries, including food, pharmaceuticals, cosmetics, and more. It is derived from cellulose, which is a natural polymer found in plant cell walls. Here are some key details about carboxymethyl cellulose sodium:

Chemical Structure: Carboxymethyl cellulose sodium is a water-soluble sodium salt of carboxymethyl ether of cellulose. It is a long-chain polymer composed of repeating glucose units with carboxymethyl groups attached to some of the hydroxyl groups.

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Molecular Formula: (C6H10O5)n – [C6H7O2(OH)2CH2COONa]m, where n represents the number of glucose units in the cellulose chain, and m represents the degree of substitution (DS) with carboxymethyl groups. Functionality: CMC is known for its ability to modify the viscosity and flow properties of aqueous solutions. It acts as a thickener, stabilizer, and texturizing agent.

Application

CMC is used primarily in foods, drugs and cosmetics as a viscosifier, emulsion stabilizer, thickener and to improve texture. The main applications of technical grade are in textile warp sizing and paper processing. CMC is also used in detergent as a antiredeposition agent, textile warp-sizing aid, adhesives, latex paints and polishes.

PHYSICAL STATE

free flowing white to off-white powder
SPECIFIC GRAVITY

1.59
SOLUBILITY IN WATER

soluble
SOLVENT SOLUBILITY

Practically insoluble in acetone
pH

7 – 10 (1% sol.)
AUTOIGNITION

300 C
STABILITY

Stable under ordinary conditions

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