Name: Carboxymethyl Cellulose
Carboxymethyl cellulose (CMC), also known as sodium carboxymethyl cellulose, sodium carboxymethyl cellulose. The full English name is Carboxymethyl Cellulose, CAS No.9004-32-4. CMC is obtained by carboxymethylation of cellulose. Its aqueous solution has the functions of thickening, film-forming, bonding, moisture retention, colloid protection, emulsification and suspension, and is widely used in textiles, ceramics, petroleum, food, medicine and papermaking. and other industries.
Name | Carboxymethylcellulose | Water soluble | Soluble in cold or hot water |
Exterior | White or off-white powder, odorless, non-toxic | Organic soluble | Insoluble in ethanol, ether, isopropanol, acetone and other organic solvents |
pH value | 6.5 - 8.5 | Discoloration temperature(℃) | 227 |
Molecular weight | 6400（±1000） | Carbonization temperature（℃） | 252 |
Purity(%) | ＞99.5 | Degree of substitution | ＞1.5 |
Dry reduction (%)≤ | 10 | Viscosity，2% 25℃ mpa.s | 1000 |
When carboxymethyl cellulose (CMC) is used in the textile, printing and dyeing industries, the textile industry uses CMC as a sizing agent for light yarn sizing of cotton, silk wool, chemical fibers, blended and other strong materials. At the same time, because of its good balance and easy control, CMC can be used as thickener, flow improver and stabilizer for various textile printing pastes.
Sodium carboxymethyl cellulose is used in the ceramic industry as an excipient, plasticizer, and reinforcing agent for blanks. It is used for the base glaze and top glaze of ceramic tiles, which can keep the glaze in a stable dispersion state. It is mainly used in printing glaze to thicken, bond and disperse.
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