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Product introduction
CAS No.: 9004-32-4
Chemical Name: Sodium carboxymethyl cellulose
Molecular Formula: C6H7O2(OH)2CH2COONa
| Melting point | 274 °C (dec.) |
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| Density | 1,6 g/cm3 |
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| FEMA | 2239 | CARBOXYMETHYLCELLULOSE |
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| storage temp. | room temp |
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| solubility | H2O: 20 mg/mL, soluble |
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| pka | 4.30(at 25ºC) |
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| form | low viscosity |
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| color | White to light yellow |
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| Odor | Odorless |
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| PH | pH (10g/l, 25ºC) 6.0~8.0 |
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| PH Range | 6.5 - 8.5 |
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| Viscosity | 900 to 1400 mPa-s(1 %, H2O, 25 ºC) |
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| Water Solubility | soluble |
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| Merck | 14,1829 |
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| Stability | Stable. Incompatible with strong oxidizing agents. |
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Definition:
Sodium carboxymethyl cellulose is a water-soluble polymer.
Uses:
Sodium carboxymethyl cellulose (CMC) is frequently called simply carboxymethyl cellulose and also known as cellulose gum. It is derived from purified cellulose from cotton and wood pulp. It is a water dispersible sodium salt of carboxy-methyl ether of cellulose that forms a clear colloidal solution. It is a hygroscopic material that has the ability to absorb more than 50% of water at high humidity. It is also a natural polymeric derivative that can be used in detergents, food and textile industries.
CMC is one of the most important products of cellulose ethers, which are formed by natural cellulose modification as a kind of cellulose derivate with an ether structure. Due to the fact that the acid form of CMC has poor water solubility, it is usually preserved as sodium carboxymethylcellulose, which is widely used in many industries and regarded as monosodium glutamate in industry.
CMC is used in cigarette adhesive, fabric sizing, footwear paste meal, home slimy. It is used in interior painting architectural, building lines melamine, thickening mortar, concrete enhancement. It is used in refractory fiber, ceramic production molding bond. It is used in oil drilling, exploration address slurry thickening, reducing water loss, quality paper surface sizing. It can be used as soap and washing powder detergent active additives, as well as other industrial production on the dispersion, emulsification, stability, suspension, film, paper, polishing and the like. Quality product can be used for toothpaste, medicine, food and other industrial sectors.
cellulose gum (Carboxymethyl cellulose) is a thickener, binder, and emulsifier equivalent to cellulose fiber. It is resistant to bacterial decomposition and provides a product with uniform viscosity. It can prevent skin moisture loss by forming a film on the skin's surface, and also help mask odor in a cosmetic product. Constituents are any of several fibrous substances consisting of the chief part of a plant's cell walls (often extracted from wood pulp or cotton).
In drilling muds, in detergents as a soil-suspending agent, in resin emulsion paints, adhesives, printing inks, textile sizes, as protective colloid in general. As stabilizer in foods. Pharmaceutic aid (suspending agent; tablet excipient; viscosity-increasing agent).
Carboxymethylcellulose sodium salt is used in drilling muds, in detergents as a soil-suspending agent, in resin emulsion paints, adhesives, printing inks, textile sizes and protective colloid. It acts as a stabilizer in foods. It is also employed in pharmaceuticals as a suspending agent and excipients for tablets. It is used as viscosity modifiers to stabilize the emulsions. It is used as a lubricant in artificial tears and it is used to characterize enzyme activity from endoglucanases.
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