Carboxymethyl Cellulose
Appearance: white or milky white powder
Physical characteristics:it is a cellulose derivative with carboxymethyl groups (-CH2-COOH) bound to some of the hydroxyl groups of the glucopyranose monomers that make up the cellulose backbone. It is also called as CMC, Carboxymethyl. Cellulose Sodium, Sodium salt of Caboxy Methyl Cellulose. CMC is one of the important water solube polyelectrolyte. It can soluble in water, insoluble in alcohol, ethanol, benzene, chloroform and other organic solvents. Resistant to animal and vegetable oils and not effected by illumination.
Specificaton:
Carboxymethyl Cellulose Sodium (CMC) for Food
| Type | Sodium % | Viscosity (2% aq. sol., 25°C) mpa.s |
pH | Chloride (Cl-%) |
Drying loss (%) |
Viscosity ratio |
| FH9FH10 | 9.0-9.59.0-9.5 | 800-12003000-6000 | 6.5-8.06.5-8.0 | ≤1.8≤1.8 | ≤6.0≤6.0 | ≥0.90≥0.90 |
| FM9 | 9.0-9.5 | 400-600 600-800 |
6.5-8.0 | ≤1.8 | ≤10.0 | ≥0.90 |
| FVH9 | 9.0-9.5 | ≥1200 | 6.5-8.0 | ≤1.8 | ≤10.0 | ≥0.82 |
| FH6 | 6.5-8.5 | 800-1000 1000-1200 |
6.5-8.0 | ≤1.8 | ≤10.0 | - |
| FM6 | 6.5-8.5 | 400-600 600-800 |
6.5-8.0 | ≤1.8 | ≤10.0 | - |
| FVH6 | 6.5-8.5 | ≥1200 | 6.5-8.0 | ≤1.8 | ≤10.0 | - |
CMC for Detergent
| Type | XD-1 | XD-2 | XD-3 | XD-4 | XD-5 |
| Viscosity (2% aq. sol., 25°C) mpa.s |
5-40 | 5-40 | 50-100 | 100-300 | ≥300 |
| CMC % | ≥55 | ≥60 | ≥65 | ≥55 | ≥55 |
| Substitution degree | 0.50-0.70 | 0.50-0.70 | 0.60-0.80 | 0.60-0.80 | 0.60-0.80 |
| pH | 8.0-11.0 | 8.0-11.0 | 7.0-9.0 | 7.0-9.0 | 7.0-9.0 |
| Drying loss (%) | 10.0 |
Application: CMC(vulgarly called ”industril gourmet powder ”) is a kind of representative cellulose ether in water-soluble fiber derivative ,which is widely used for the industries of food processing ,lactic acid beverage and toothpaste,etc., and plays a important role in every industry or trade as emulsifier ,sizing agent .stabilizer,thickener,retarder,film former,dispersing agent,suspending agen,adhisive,mercerizing agent,lustering agent and color fixing agent,etc, it has many advantages that natural common and communication facilities.
