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Physical Properties Of Sodium Carboxymethyl Cellulose (CMC)

Physical properties of sodium carboxymethyl cellulose (CMC)

Sodium carboxymethyl cellulose (CMC) is an anionic cellulose ether, the appearance is white or yellowish flocculent fiber powder or white powder, odorless, non-toxic; soluble in cold water or hot water, forming a transparent solution with a certain viscosity. Solution is neutral or slightly alkaline, insoluble in ethanol, ether, isopropyl alcohol, acetone and other organic solvents, soluble in aqueous 60% ethanol or acetone solution. Moisture absorption, thermal stability, viscosity decreases with increasing temperature, the solution at pH 2 to 10 stable, PH less than 2, solid precipitation, pH value higher than the viscosity reduction of 10. Color temperature 227 DEG C, carbonization temperature of 252 DEG C, the surface tension of 2% aqueous solution 71mn/n.

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