Introduction of Sodium Carboxymethyl Cellulose
CAS No.: 9004-32-4
H.S No.: 39123100
EINECS No.: 900-432-4
Chemical Formula: [C6H7O2(OH)x(OCH2COONa)y]n
n is the degree of polymerization, x=1.5 to 2.8, y=0.2 to 1.5, x+y=3.0, y=degree of substitution
Another Name: Carboxymethylcellulose, CMC, Na CMC, Sodium Carboxymethylcellulose, E466, Cellulose Gum,Carmellose sodium, Sodium cmc.
Chemical Name: Sodium salt of carboxymethyl ether of cellulose
Definition: Prepared from cellulose by treatment with alkali and monochloroacetic acid or its sodium salt. The article of commerce can be specified further by viscosity.
Formula weight: Structural unit with a degree of substitution of 0.2: 178.14
Structural unit with a degree of substitution of 1.5: 282.18
Macromolecules: greater than about 17000 (n about 100)
Functional Uses: Thickening agent, stabilizer, suspending agent.
Sodium Carboxymethyl Cellulose is anionic cellulose ether with macromolecular structure. It is odourless, tasteless, and non-toxic with white or faint yellow powder or particles. It can easily dissolve in water, and transfer into the colloidal solution; and it cannot dissolve in ethanol, ether, acetone, and other organic solvent.
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